Wikipedia

World record progression 50 metres backstroke

This is a listing of the history of the world record for the 50 metres backstroke swimming event. Swimming world records are maintained by World Aquatics, the international sports federation which oversees the sport. World records are recognized only in long course (50m) and short course (25m). Like the 50 m breaststroke, 50 m butterfly, and the 50 m backstroke, world record status and monitoring for this event first began in the 1990s.

Graphic data for World Record Progression in Men and Women Swimming 50m-100m-200m Long and Short Course Butterfly-Backstroke-Breaststroke-Freestyle

Men

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Long course

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# Time NameNationalityDateMeetLocation Ref
WB 25.13 Jeff Rouse United States 15 April 1993Robert Burns Invitational Edinburgh, United Kingdom
1 24.99 ttLenny Krayzelburg United States 28 August 1999Pan Pacific Championships Sydney, Australia
2 24.80 Thomas Rupprath Germany 27 July 2003World Championships Barcelona, Spain
3 24.47 h, †Liam Tancock Great Britain 2 April 2008British Championships Sheffield, United Kingdom [1]
4 24.33 Randall Bal United States 5 December 2008Eindhoven Cup Eindhoven, Netherlands [2]
5 24.08 sfLiam Tancock Great Britain 1 August 2009World Championships Rome, Italy [3]
6 24.04 Liam Tancock Great Britain 2 Aug 2009World Championships Rome, Italy [4]
7 24.00 Kliment Kolesnikov Russia 4 Aug 2018European Championships Glasgow, Great Britain [5]
8 23.93 sfKliment Kolesnikov Russia 17 May 2021European Championships Budapest, Hungary [6][7]
9 23.80 Kliment Kolesnikov Russia 18 May 2021European Championships Budapest, Hungary [8]
10 23.71 Hunter Armstrong United States 28 April 2022USA International Team Trials Greensboro, United States [9]
11 23.55 sfKliment Kolesnikov Russia 27 July 2023Russian Cup Kazan, Russia [10]
Legend: # – Record awaiting ratification by FINA;
Records not set in finals: h – heat; sf – semifinal; r – relay 1st leg; rh – relay heat 1st leg; b – B final; † – en route to final mark; so – swim-off; tt – time trial

Short course

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# Time NameNationalityDateMeetLocation Ref
1 25.10 Daichi Suzuki Japan 10 Feb 1990World Cup Bonn, West Germany [11]
# 24.66 Alexander Popov Russia 13 March 1994World Cup Desenzano, Italy
2 24.60 Franck Schott France 26 March 1994World Cup Paris, France
3 24.37 hJeff Rouse United States 12 Feb 1995World Cup Sheffield, United Kingdom
4 24.25 Chris Renaud Canada 28 Feb 1997CIAU Championships St. Catharines, Canada
5 24.13 Thomas Rupprath Germany 11 December 1998European 25m Championships Sheffield, United Kingdom
5 24.13 =Matt Welsh Australia 2 September 1999Australia 25m Nationals Canberra, Australia
6 24.12 Neil Walker United States 18 November 1999World Cup College Park, United States
7 24.11 Matt Welsh Australia 14 January 2000World Cup Hobart, Australia
8 24.04 hNeil Walker United States 13 March 2000World Championships Athens, Greece
9 23.42 sfNeil Walker United States 13 March 2000World Championships Athens, Greece
10 23.31 Matt Welsh Australia 2 Sep 2002Australia 25m Nationals Melbourne, Australia
11 23.27 Thomas Rupprath Germany 10 Dec 2004European 25m Championships Vienna, Austria [12]
12 23.24 Robert Hurley Australia 26 Oct 2008World Cup Sydney, Australia [13]
13 23.05 Peter Marshall United States 12 Nov 2008World Cup Stockholm, Sweden [14]
14 22.87 Randall Bal United States 15 Nov 2008World Cup Berlin, Germany [15]
15 22.75 Peter Marshall United States 17 October 2009World Cup Durban, South Africa [16]
16 22.73 Peter Marshall United States 11 Nov 2009World Cup Stockholm, Sweden [17]
17 22.61 Peter Marshall United States 22 Nov 2009World Cup Singapore [18]
18 22.22 Florent Manaudou France 6 December 2014World Championships Doha, Qatar [19]
19 22.11 Kliment Kolesnikov Russia 23 November 2022Solidarity Games Kazan, Russia [20]
Legend: # – Record awaiting ratification by FINA;
Records not set in finals: h – heat; sf – semifinal; r – relay 1st leg; rh – relay heat 1st leg; b – B final; † – en route to final mark; so – swim-off; tt – time trial

Women

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Long course

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# Time NameNationalityDateMeetLocation Ref
1 29.00 Sandra Völker Germany 24 May 1997Mare Nostrum Monte Carlo, Monaco
2 28.78 sfSandra Völker Germany 12 Jun 1999Mare Nostrum Monte Carlo, Monaco
3 28.71 Sandra Völker Germany 1 Aug 1999European Championships Istanbul, Turkey
4 28.69 Nina Zhivanevskaya Spain 8 April 2000Spain Spring Nationals Madrid, Spain
5 28.67 Mai Nakamura Japan 25 April 2000Japan Championships Tokyo, Japan
6 28.25 hSandra Völker Germany 17 Jun 2000Germany Championships Berlin, Germany
7 28.19 Janine Pietsch Germany 25 May 2005Germany Championships Berlin, Germany
8 28.16 sfLeila Vaziri United States 28 Mar 2007World Championships Melbourne, Australia
8 28.16 =Leila Vaziri United States 29 Mar 2007World Championships Melbourne, Australia
9 28.09 Li Yang China 19 Oct 2007World Military Games Hyderabad, India
10 28.00 rHayley McGregory United States 7 Mar 2008Texas Senior Circuit Championships Austin, United States
11 27.95 sfEmily Seebohm Australia 22 Mar 2008Australia Championships Sydney, Australia
12 27.67 Sophie Edington Australia 23 Mar 2008Australia Championships Sydney, Australia [21]
12 27.67 =Zhao Jing China 9 April 2009China Championships Shaoxing, China [22]
13 27.61 Daniela Samulski Germany 26 Jun 2009Germany Championships Berlin, Germany [23]
14 27.39 sfDaniela Samulski Germany 29 Jul 2009World Championships Rome, Italy
15 27.38 sfAnastasia Zuyeva Russia 29 Jul 2009World Championships Rome, Italy
16 27.06 Zhao Jing China 30 Jul 2009World Championships Rome, Italy [24]
17 26.98 Liu Xiang  China 21 Aug 2018Asian Games Jakarta, Indonesia [25]
18 26.86 Kaylee McKeown  Australia 20 October 2023World Cup Budapest, Hungary [26]
Legend: # – Record awaiting ratification by FINA;
Records not set in finals: h – heat; sf – semifinal; r – relay 1st leg; rh – relay heat 1st leg; b – B final; † – en route to final mark; so – swim-off; tt – time trial

Short course

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# Time NameNationalityDateMeetLocation Ref
WB 28.47 Lei Xue China 9 January 1993World Cup Beijing, China
1 28.33 Sandra Völker Germany 16 February 1993World Cup Sheffield, Great Britain
2 27.64 Xiuyu Bai China 13 March 1994World Cup Desenzano, Italy
3 27.27 Sandra Völker Germany 13 December 1998European Championships Sheffield, United Kingdom [27]
4 27.25 rHaley Cope United States 18 March 2000NCAA Division I Championships Indianapolis, United States [28]
5 26.83 Li Hui China 2 December 2001World Cup Shanghai, China [27]
6 26.50 Sanja Jovanović Croatia 15 December 2007European Championships Debrecen, Hungary
7 26.37 Sanja Jovanović Croatia 13 April 2008World Championships Manchester, United Kingdom [29]
8 26.23 Sanja Jovanović Croatia 13 December 2008European Championships Rijeka, Croatia
9 26.17 Marieke Guehrer Australia 6 November 2009World Cup Moscow, Russia
10 26.08 hZhao Jing China 10 November 2009World Cup Stockholm, Sweden [30]
11 25.82 Zhao Jing China 10 November 2009World Cup Stockholm, Sweden [31]
12 25.70 Sanja Jovanović Croatia 12 December 2009European Championships Istanbul, Turkey [32]
13 25.67 Etiene Medeiros Brazil 7 December 2014World Championships Doha, Qatar [33]
14 25.60 Kira Toussaint Netherlands 14 November 2020International Swimming League Budapest, Hungary [34]
14 25.60 =Kira Toussaint Netherlands 18 December 2020Amsterdam Christmas Meet Amsterdam, Netherlands [35]
15 25.27 Maggie Mac Neil  Canada 20 December 2021World Championships Abu Dhabi, United Arab Emirates [36]
16 25.25 Maggie Mac Neil  Canada 16 December 2022World Championships Melbourne, Australia [37]
17 25.23 Regan Smith United States 13 December 2024World Championships Budapest, Hungary [38]
Legend: # – Record awaiting ratification by FINA;
Records not set in finals: h – heat; sf – semifinal; r – relay 1st leg; rh – relay heat 1st leg; b – B final; † – en route to final mark; so – swim-off; tt – time trial

All-time top 25

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Tables show data for two definitions of "Top 25" - the top 25 50 m backstroke times and the top 25 athletes:
- denotes top performance for athletes in the top 25 50 m backstroke times
- denotes lesser performances, still in the top 25 50 m backstroke times, by repeat athletes
- denotes top performance (only) for other top 25 athletes who fall outside the top 25 50 m backstroke times

Men long course

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  • Correct as of June 2026[39]
Ath.# Perf.# Time Athlete Nation Date Place Ref.
1 1 23.55 Kliment Kolesnikov  Russia 27 July 2023 Kazan [10]
2 23.68 Kolesnikov #2 28 July 2023 Kazan [40]
Kolesnikov #3 3 August 2025 Singapore [41]
2 4 23.71 Hunter Armstrong  United States 28 April 2022 Greensboro [9]
5 23.80 Kolesnikov #4 18 May 2021 Budapest [8]
6 23.86 Kolesnikov #5 7 June 2026 Kazan [42]
7 23.90 Kolesnikov #6 26 July 2024 Yekaterinburg [43]
Kolesnikov #7 16 April 2025 Kazan [44]
3 9 23.92 Justin Ress  United States 28 April 2022 Greensboro [9]
10 23.93 Kolesnikov #8 17 May 2021 Budapest [6]
11 23.96 Kolesnikov #9 17 April 2024 Kazan [45]
12 24.00 Kolesnikov #10 4 August 2018 Glasgow [5]
4 12 24.00 Shaine Casas  United States 28 April 2022 Greensboro [9]
14 24.01 Armstrong #2 28 April 2022 Greensboro [46]
5 14 24.01 Pavel Samusenko  Russia 16 April 2025 Kazan [44]
6 16 24.04 Liam Tancock  Great Britain 2 August 2009 Rome [4]
17 24.05 Ress #2 28 April 2022 Greensboro [46]
Armstrong #3 30 July 2023 Fukuoka [47]
7 19 24.07 Camille Lacourt  France 12 August 2010 Budapest [48]
20 24.08 Tancock #2 1 August 2009 Rome [3]
Kolesnikov #11 3 April 2021 Kazan [49]
Kolesnikov #12 2 August 2025 Singapore [50]
23 24.10 Ress #3 29 June 2023 Indianapolis [51]
24 24.11 Kolesnikov #13 27 July 2023 Kazan [52]
8 25 24.12 Robert Glință  Romania 3 August 2018 Glasgow [53]
25 24.12 Ress #4 25 June 2022 Budapest [54]
Kolesnikov #14 19 April 2023 Kazan [55]
8 25 24.12 Isaac Cooper  Australia 17 February 2024 Doha [56]
10 24.17 Pieter Coetze  South Africa 3 August 2025 Singapore [41]
11 24.23 Mark Nikolaev  Russia 11 April 2019 Kazan
12 24.24 Junya Koga  Japan 2 August 2009 Rome [4]
Ryan Murphy  United States 27 July 2018 Irvine [57]
14 24.28 Miron Lifintsev  Russia 7 August 2024 Debrecen
15 24.29 Vladimir Morozov  Russia 3 August 2018 Glasgow [53]
16 24.32 Shane Ryan  Ireland 3 August 2018 Glasgow [58]
17 24.33 Randall Bal  United States 5 December 2008 Eindhoven [2]
18 24.34 Johannes Zandberg  South Africa 2 August 2009 Rome [4]
Quintin McCarty  United States 5 June 2025 Indianapolis [59]
20 24.36 Apostolos Christou  Greece 15 August 2022 Rome [60]
Xu Jiayu  China 16 November 2025 Shenzhen [61]
Oliver Morgan  Great Britain 17 April 2026 London [62]
23 24.38 Michele Lamberti  Italy 14 April 2026 Riccione [63]
24 24.39 Michael Andrew  United States 21 June 2019 Rome
25 24.40 Thomas Ceccon  Italy 15 August 2022 Rome [60]

Men short course

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  • Correct as of December 2025[64]
Ath.# Perf.# Time Athlete Nation Date Place Ref.
1 1 22.11 Kliment Kolesnikov  Russia 23 November 2022 Kazan [20]
2 2 22.22 Florent Manaudou  France 6 December 2014 Doha [19]
3 22.31 Kolesnikov #2 22 November 2022 Kazan
3 4 22.37 Pavel Samusenko  Russia 20 December 2025 Saint Petersburg [65]
5 22.42 Kolesnikov #3 16 December 2023 Saint Petersburg [66]
6 22.43 Kolesnikov #4 10 November 2025 Kazan [67]
4 7 22.44 Egor Kornev  Russia 20 December 2025 Saint Petersburg [65]
8 22.47 Kolesnikov #5 3 November 2021 Kazan [68]
5 8 22.47 Miron Lifintsev  Russia 13 December 2024 Budapest [69]
6 10 22.49 Mark Nikolaev  Russia 28 December 2021 Saint Petersburg [70]
Isaac Cooper  Australia 13 December 2024 Budapest [69]
12 22.52 Cooper #2 15 December 2022 Melbourne [71]
Kornev #2 10 November 2025 Kazan [67]
8 14 22.53 Ryan Murphy  United States 25 November 2021 Eindhoven [72]
15 22.54 Murphy #2 21 November 2020 Budapest [73]
9 16 22.55 Guilherme Guido  Brazil 26 October 2019 Budapest [74]
16 22.55 Kolesnikov #6 22 November 2022 Kazan
18 22.56 Murphy #3 3 December 2021 Eindhoven [75]
10 18 22.56 Shane Ryan  Ireland 13 December 2024 Budapest [69]
20 22.57 Kolesnikov #7 2 November 2021 Kazan
11 21 22.58 Evgeny Rylov  Russia 14 December 2018 Hangzhou [76]
21 22.58 Kolesnikov #8 3 November 2021 Kazan [77]
Cooper #3 19 October 2024 Shanghai [78]
24 22.59 Rylov #2 3 December 2021 Eindhoven [75]
25 22.60 Guido #2 2 September 2021 Naples [79]
Guido #3 11 September 2021 Naples [80]
12 22.61 Peter Marshall  United States 22 November 2009 Singapore [18]
Coleman Stewart  United States 28 August 2021 Naples [81]
14 22.62 Michele Lamberti  Italy 3 November 2021 Kazan [77]
15 22.63 Ralf Tribuntsov  Estonia 6 December 2025 Lublin [82]
16 22.64 Hubert Kós  Hungary 13 December 2024 Budapest [69]
17 22.65 Lorenzo Mora  Italy 17 December 2022 Melbourne [83]
18 22.68 Kacper Stokowski  Poland 13 December 2024 Budapest [69]
19 22.69 Miroslav Knedla  Czech Republic 7 December 2025 Lublin [84]
20 22.70 Xu Jiayu  China 3 November 2018 Beijing [85]
21 22.72 Dylan Carter  Trinidad and Tobago 4 November 2022 Indianapolis [86]
22 22.73 Thierry Bollin  Switzerland 12 December 2024 Budapest [87]
23 22.74 Stanislav Donets  Russia 26 November 2010 Eindhoven [88]
Robert Glință  Romania 3 November 2021 Kazan [68]
25 22.75 Pieter Coetze  South Africa 1 November 2024 Singapore [89]

Notes

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  • Pavel Samusenko also swam the third-fastest swim in history with 22.26, leading off the National Team squad’s mixed 4×50 medley relay final at the 2025 Vladimir Salnikov Cup.[90]

Women long course

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  • Correct as of June 2026[91]
Ath.# Perf.# Time Athlete Nation Date Place Ref.
1 1 26.86 Kaylee McKeown  Australia 20 October 2023 Budapest [26]
2 2 26.97 Katharine Berkoff  United States 5 June 2025 Indianapolis [92]
3 3 26.98 Liu Xiang  China 21 August 2018 Jakarta [25]
3 26.98 McKeown #2 9 December 2023 Brisbane [93]
5 27.02 McKeown #3 13 October 2023 Athens [94]
4 6 27.06 Zhao Jing  China 30 July 2009 Rome [24]
6 27.06 McKeown #4 23 March 2025 Sydney [95]
8 27.07 McKeown #5 18 April 2024 Gold Coast [96]
9 27.08 McKeown #6 27 July 2023 Fukuoka [97]
Berkoff #2 31 July 2025 Singapore [98]
5 11 27.09 Wan Letian  China 23 March 2025 Qingdao [99]
6 12 27.10 Kira Toussaint  Netherlands 10 April 2021 Eindhoven [100]
Regan Smith  United States 26 July 2023 Fukuoka [101]
8 14 27.11 Fu Yuanhui  China 6 August 2015 Kazan [102]
14 27.11 Smith #2 27 July 2023 Fukuoka [97]
16 27.12 Berkoff #3 28 April 2022 Greensboro [103]
17 27.13 Berkoff #4 29 June 2023 Indianapolis [104]
9 17 27.13 Kylie Masse  Canada 1 May 2025 Fort Lauderdale [105]
17 27.13 McKeown #7 8 June 2026 Sydney [106]
10 20 27.14 Etiene Medeiros  Brazil 27 July 2017 Budapest [107]
20 27.14 Smith #3 29 June 2023 Indianapolis [104]
22 27.15 Fu #2 27 July 2017 Budapest [107]
11 22 27.15 Lauren Cox  Great Britain 24 May 2025 London [108]
24 27.16 Fu #3 15 April 2018 Shanxi [109]
McKeown #8 16 May 2021 Sydney [110]
12 24 27.16 Mollie O'Callaghan  Australia 18 April 2024 Gold Coast [96]
13 27.19 Kathleen Dawson  Great Britain 18 May 2021 Budapest [111]
14 27.21 Georgia Davies  Great Britain 4 August 2018 Glasgow [112]
15 27.23 Daniela Samulski  Germany 30 July 2009 Rome [24]
Aliaksandra Herasimenia  Belarus 27 July 2017 Budapest [107]
Anastasia Fesikova  Russia 4 August 2018 Glasgow [112]
Alina Gaifutdinova  Russia 19 April 2026 Saint Petersburg [113]
19 27.24 Claire Curzan  United States 5 June 2025 Indianapolis [92]
20 27.27 Analia Pigrée  France 14 August 2022 Rome [114]
21 27.28 Gao Chang  China 30 July 2009 Rome [24]
22 27.29 Isabelle Stadden  United States 5 March 2026 Westmont [115]
30 April 2026 Fort Lauderdale [116]
23 27.31 Leah Shackley  United States 22 July 2025 Berlin [117]
24 27.33 Olivia Smoliga  United States 25 July 2019 Gwangju [118]
28 April 2022 Greensboro [103]
Sara Curtis  Italy 15 April 2026 Riccione [119]
Iona Anderson  Australia 8 June 2026 Sydney [106]

Women short course

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  • Correct as of October 2025[120]
Ath.# Perf.# Time Athlete Nation Date Place Ref.
1 1 25.23 Regan Smith  United States 13 December 2024 Budapest [38]
2 2 25.25 Maggie Mac Neil  Canada 16 December 2022 Melbourne [37]
3 25.27 Mac Neil #2 20 December 2021 Abu Dhabi [36]
3 4 25.35 Kaylee McKeown  Australia 23 October 2025 Toronto [121]
5 25.36 McKeown #2 18 October 2024 Shanghai [122]
4 6 25.37 Gretchen Walsh  United States 18 October 2024 Charlottesville [123]
7 25.40 McKeown #3 28 September 2024 Adelaide [124]
Walsh #2 23 October 2025 Toronto [121]
9 25.42 McKeown #4 10 October 2025 Carmel [125]
5 9 25.42 Mollie O'Callaghan  Australia 23 October 2025 Toronto [121]
6 11 25.47 Marrit Steenbergen  Netherlands 7 December 2025 Lublin [126]
12 25.48 Smith #2 31 October 2024 Singapore [127]
13 25.49 O'Callaghan #2 17 December 2022 Melbourne [128]
7 13 25.49 Sara Curtis  Italy 7 December 2025 Lublin [129]
8 15 25.51 Katharine Berkoff  United States 12 December 2024 Budapest [130]
9 16 25.54 Claire Curzan  United States 16 December 2022 Melbourne [37]
10 17 25.60 Kira Toussaint  Netherlands 14 November 2020 Budapest [34]
18 December 2020 Amsterdam [35]
Maria Kameneva  Russia 24 November 2022 Kazan [131]
17 25.60 Curzan #2 15 December 2022 Melbourne [132]
21 25.61 O'Callaghan #3 16 December 2022 Melbourne [37]
Berkoff #2 13 December 2024 Budapest [38]
23 25.62 Toussaint #3 18 December 2020 Amsterdam [35]
12 23 25.62 Kylie Masse  Canada 20 December 2021 Abu Dhabi [36]
25 25.63 McKeown #5 17 October 2025 Westmont [133]
13 25.67 Etiene Medeiros  Brazil 4 December 2014 Doha [33]
14 25.70 Sanja Jovanović  Croatia 12 December 2009 Istanbul [32]
15 25.74 Olivia Smoliga  United States 16 October 2020 Budapest [134]
16 25.81 Minna Atherton  Australia 26 October 2019 Budapest [135]
Ingrid Wilm  Canada 12 December 2024 Budapest [130]
18 25.82 Zhao Jing  China 10 November 2009 Stockholm [31]
19 25.83 Emily Seebohm  Australia 7 December 2014 Doha [33]
Louise Hansson  Sweden 19 December 2021 Abu Dhabi [136]
Celia Pulido Ortíz  Mexico 10 October 2025 Carmel [125]
22 25.85 Julie Kepp Jensen  Denmark 15 December 2022 Melbourne [137]
23 25.92 Gao Chang  China 27 February 2010 Tokyo [138]
24 25.94 Analia Pigrée  France 13 December 2024 Budapest [38]
25 25.95 Katinka Hosszú  Hungary 16 December 2017 Copenhagen [139]
Iona Anderson  Australia 31 October 2024 Singapore [127]

References

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  1. ↑ "Tancock Posts New World Record". British Swimming. 2 April 2008. Archived from the original on 2011-07-21. Retrieved 2008-10-15.
  2. 1 2 "Eindhoven Cup: Randall Bal Sets World Record, Several National Records Tumble". Swimming World. 5 December 2008. Retrieved 30 April 2025.
  3. 1 2 "13th FINA World Championships - Men's 50m Backstroke Semifinals Results" (PDF). Omega Timing. 1 August 2009. Retrieved 30 April 2025.
  4. 1 2 3 4 "13th FINA World Championships - Men's 50m Backstroke Final Results" (PDF). Omega Timing. 2 August 2009. Retrieved 30 April 2025.
  5. 1 2 "2018 European Championships - Men's 50m Backstroke Final Results" (PDF). microplustiming.com. 4 August 2018. Retrieved 8 May 2025.
  6. 1 2 "2020 European Championships - Men's 50m Backstroke Semifinals Results" (PDF). microplustiming.com. 17 May 2021. Retrieved 17 May 2021.
  7. ↑ "Video. Men's 50m Backstroke Semifinal". JoshSwimz. 17 May 2018. Archived from the original on 2021-12-21. Retrieved 17 May 2021.
  8. 1 2 "2020 European Championships - Men's 50m Backstroke Final Results" (PDF). microplustiming.com. 18 May 2021. Retrieved 30 April 2025.
  9. 1 2 3 4 "2022 International Team Trials - Men's 50m Backstroke Final Results" (PDF). Omega Timing. 28 April 2022. Retrieved 30 April 2025.
  10. 1 2 "2023 Russian Cup - Men's 50m Backstroke Semifinals Results" (PDF). russwimming.ru. 27 July 2023. Retrieved 27 July 2023.
  11. ↑ "Archived copy" (PDF). Archived from the original (PDF) on 2017-08-22. Retrieved 2018-04-01.{{cite web}}: CS1 maint: archived copy as title (link)
  12. ↑ "Thomas Rupprath recorded 23.23 on December 1 2002 in Goslar Germany in medley relay, but time not ratified".
  13. ↑ "Men's 50m Backstroke Finals" (PDF). www.omegatiming.com. 26 October 2008. Retrieved 17 October 2024.
  14. ↑ "Peter Marshall breaks world 50m backstroke record" (PDF). 12 November 2008. Archived from the original (PDF) on 2008-12-03. Retrieved 2008-11-12.
  15. ↑ "Randall Bal breaks world 50m backstroke record" (PDF). 15 November 2008. Archived from the original (PDF) on 2008-12-03. Retrieved 2008-11-15.
  16. ↑ "Results Men's 50m Backstroke" (PDF). OmegaTiming.com. 17 October 2009. Archived from the original (PDF) on 2009-11-22. Retrieved 2009-10-17.
  17. ↑ "Results Men's 50m Backstroke" (PDF). OmegaTiming.com. 11 November 2009. Archived from the original (PDF) on 2009-11-22. Retrieved 2009-11-12.
  18. 1 2 "2009 FINA World Cup (Singapore) - Men's 50m Backstroke Final Results" (PDF). Omega Timing. 6 December 2014. Retrieved 6 December 2014.
  19. 1 2 "2014 FINA World Championships (25 m) - Men's 50m Backstroke Results". Omega Timing. 6 December 2014. Retrieved 6 December 2014.
  20. 1 2 "Men's 50m Backstroke results" (PDF). Russia Swimming. 23 November 2022. Archived from the original (PDF) on 23 November 2022. Retrieved 26 November 2022.
  21. ↑ "Edington breaks 50m backstroke world record". The Sydney Morning Herald. 23 March 2008. Retrieved 2008-03-24.
  22. ↑ Craig Lord (9 April 2009). "WR: Zhao Equals Edington's 50m Back 27.67". SwimNews.com. Archived from the original on 2009-04-12. Retrieved 2009-04-09.
  23. ↑ "Samulski 'WR' Highlights Fast-Suits Farce". SwimNews.com. 26 June 2009. Archived from the original on 2009-06-29. Retrieved 2009-06-26.
  24. 1 2 3 4 "13th FINA World Championships - Women's 50m Backstroke Final Results" (PDF). Omega Timing. 30 July 2009. Retrieved 31 March 2025.
  25. 1 2 "Women's 50m Backstroke Final Results". asiangames2018.id. 21 August 2018. Archived from the original on 21 August 2018. Retrieved 21 August 2018.
  26. 1 2 "2023 World Aquatics Cup (Budapest) - Women's 50m Backstroke Final Results" (PDF). Omega Timing. 20 October 2023. Retrieved 22 October 2023.
  27. 1 2 (scm-w) Women's 50 Back results - prelims from the Shanghai meet of the 2001–02 World Cup (showing the World and Cup records that day: the results from Finals show Li as having set and holding the World record. Published by Omega Timing on 2001-12-02, retrieved 2012-03-27.
  28. ↑ "Women's NCAA Championships – Day 2". www.swimnews.com. 18 March 2000. Archived from the original on 23 December 2010. Retrieved 16 April 2013.
  29. ↑ "WR: Jovanovic – 26.37 50m Backstroke". swimnews.com. 13 April 2008. Archived from the original on 2008-06-03. Retrieved 2008-04-20.
  30. ↑ "2009 FINA World Cup (25 m) - Women's 50m Backstroke Heats Results" (PDF). Omega Timing. 10 November 2009. Retrieved 7 April 2025.
  31. 1 2 "2009 FINA World Cup (25 m) - Women's 50m Backstroke Final Results" (PDF). Omega Timing. 10 November 2009. Retrieved 7 April 2025.
  32. 1 2 "2009 European Championships - Women's 50m Backstroke Final Results" (PDF). Omega Timing. 12 December 2009. Archived from the original (PDF) on 2009-12-28. Retrieved 2009-12-12.
  33. 1 2 3 "2014 FINA World Championships (25 m) - Women's 50m Backstroke Final Results" (PDF). Omega Timing. 20 December 2021. Retrieved 7 April 2025.
  34. 1 2 "2020 International Swimming League (Semifinal 1) - Women's 50m Backstroke Results" (PDF). omegatiming.com. 14 November 2020. Retrieved 16 November 2020.
  35. 1 2 3 Andy Ross (18 December 2020). "Kira Toussaint Ties Own World Record in 50 Back SCM; Kamminga Lowers Another Dutch Record (VIDEO)". Swimming World. Retrieved 8 May 2025.
  36. 1 2 3 "2021 FINA World Championships (25 m) - Women's 50m Backstroke Final Results" (PDF). Omega Timing. 20 December 2021. Retrieved 20 December 2021.
  37. 1 2 3 4 "16th FINA World Championships (25 m) - Women's 50m Backstroke Final Results" (PDF). Omega Timing. 16 December 2022. Retrieved 16 December 2022.
  38. 1 2 3 4 "2024 World Aquatics Championships (25 m) - Women's 50m Backstroke Final Results" (PDF). Omega Timing. 13 December 2024. Retrieved 13 December 2024.
  39. ↑ "Men's 50m Backstroke Long Course All-Time Ranking". World Aquatics. Retrieved 6 August 2025.
  40. ↑ "2023 Russian Cup - Men's 50m Backstroke Final Results" (PDF). russwimming.ru. 28 July 2023. Retrieved 8 May 2025.
  41. 1 2 "2025 World Aquatics Championships - Men's 50m Backstroke Final Results" (PDF). Omega Timing. 3 August 2025. Retrieved 3 August 2025.
  42. ↑ James Sutherland (8 June 2026). "Kolesnikov, Kornev Highlight First Three Days of Russian Swimming Championships". SwimSwam. Retrieved 9 June 2026.
  43. ↑ "2024 Russian Cup - Men's 50m Backstroke Final Results" (PDF). russwimming.ru. 26 July 2024. Retrieved 10 May 2025.
  44. 1 2 "2025 Russian Championships - Men's 50m Backstroke Final Results" (PDF). russwimming.ru. 27 July 2023. Retrieved 8 May 2025.
  45. ↑ "2024 Russian Championships - Men's 50m Backstroke Final Results" (PDF). russwimming.ru. 17 April 2024. Retrieved 10 May 2025.
  46. 1 2 "2022 International Team Trials - Men's 50m Backstroke Heats Results" (PDF). Omega Timing. 28 April 2022. Retrieved 10 May 2025.
  47. ↑ "2023 World Aquatics Championships - Men's 50m Backstroke Final Results" (PDF). Omega Timing. 30 July 2023. Retrieved 10 May 2025.
  48. ↑ "2010 European Championships - Men's 50m Backstroke Results" (PDF). Omega Timing. 12 August 2010. Archived from the original (PDF) on 2010-08-21. Retrieved 8 May 2025.
  49. ↑ James Sutherland (3 April 2021). "Kliment Kolesnikov Hits 24.08 to Tie Fourth-fastest 50 Back in History". SwimSwam. Retrieved 10 May 2025.
  50. ↑ "2025 World Aquatics Championships - Men's 50m Backstroke Heats Results" (PDF). Omega Timing. 2 August 2025. Retrieved 2 August 2025.
  51. ↑ "2023 US National Championships - Men's 50m Backstroke Final Results" (PDF). Omega Timing. 29 June 2023. Retrieved 10 May 2025.
  52. ↑ "2023 Russian Cup - Men's 50m Backstroke Heats Results" (PDF). russwimming.ru. 27 July 2023. Retrieved 8 May 2025.
  53. 1 2 "2018 European Championships - Men's 50m Backstroke Semifinals Results" (PDF). microplustiming.com. 3 August 2018. Retrieved 10 May 2025.
  54. ↑ "19th FINA World Championships - Men's 50m Backstroke Final Results" (PDF). Omega Timing. 25 June 2022. Retrieved 10 May 2025.
  55. ↑ "2023 Russian Championships - Men's 50m Backstroke Final Results" (PDF). russwimming.ru. 19 April 2023. Retrieved 23 April 2023.
  56. ↑ "2024 World Aquatics Championships - Men's 50m Backstroke Semifinals Results" (PDF). Omega Timing. 17 February 2024. Retrieved 17 February 2024.
  57. ↑ "2018 US National Championships - Men's 50m Backstroke Final Results" (PDF). Omega Timing. 27 July 2018. Retrieved 10 May 2025.
  58. ↑ "2018 European Championships - Men's 50m Backstroke Heats Results" (PDF). microplustiming.com. 3 August 2018. Retrieved 10 May 2025.
  59. ↑ "2025 US National Championships - Men's 50m Backstroke Final Results" (PDF). Omega Timing. 5 June 2025. Retrieved 5 June 2025.
  60. 1 2 "2022 European Championships - Men's 50m Backstroke Final Results" (PDF). microplustiming.com. 15 August 2022. Retrieved 10 May 2025.
  61. ↑ "Xu Jiayu breaks national record in men's 50m backstroke at China's 15th National Games". english.news.cn. 16 November 2025. Retrieved 29 November 2025.
  62. ↑ Retta Race (17 April 2026). "2026 Aquatics GB Swimming Championships: Day Four A-Finals Live Recap". SwimSwam. Retrieved 17 April 2026.
  63. ↑ "2026 Italian Championships - Men's 50m Backstroke Final Results" (PDF). microplustiming.com. 14 April 2026. Retrieved 14 April 2026.
  64. ↑ "Men's 50m Backstroke Long Course All-Time Ranking". World Aquatics. Retrieved 15 November 2025.
  65. 1 2 "2025 Vladimir Salnikov Cup - Men's 50m Backstroke Final Results" (PDF). salnikovcup.ru. 20 December 2025. Retrieved 10 January 2026.
  66. ↑ "2023 Vladimir Salnikov Cup - Men's 50m Backstroke Final Results" (PDF). salnikovcup.ru/. 16 December 2023. Retrieved 8 May 2025.
  67. 1 2 "2025 Russian Championships - Men's 50m Backstroke Final Results" (PDF). Russian Swimming Federation. 10 November 2025. Retrieved 11 November 2025.
  68. 1 2 "2021 European Short Course Championships - Men's 50m Backstroke Final Results" (PDF). microplustiming.com. 3 November 2021. Retrieved 8 May 2025.
  69. 1 2 3 4 5 "2024 World Aquatics Championships (25m) - Men's 50m Backstroke Final Results" (PDF). Omega Timing. 13 December 2024. Retrieved 28 December 2024.
  70. ↑ "2021 Vladimir Salnikov Cup - Men's 50m Backstroke Final Results" (PDF). salnikovcup.ru. 28 December 2021. Retrieved 28 December 2021.
  71. ↑ "16th FINA World Championships (25m) - Men's 50m Backstroke Semifinals Results" (PDF). omegatiming.com. 15 December 2022. Retrieved 8 May 2025.
  72. ↑ "2021 International Swimming League (Match 16) - Men's 50m Backstroke Results" (PDF). Omega Timing. 25 November 2021. Retrieved 8 May 2025.
  73. ↑ "2020 International Swimming League (Final) - Men's 50m Backstroke Results" (PDF). Omega Timing. 21 November 2020. Retrieved 8 May 2025.
  74. ↑ "2019 International Swimming League (Budapest) - Men's 50m Backstroke Results" (PDF). isl.global. 26 October 2019. p. 20. Retrieved 8 May 2025.
  75. 1 2 "2021 International Swimming League (Final) - Men's 50m Backstroke Results" (PDF). Omega Timing. 3 December 2021. Retrieved 8 May 2025.
  76. ↑ "2018 FINA World Championships - Men's 50m Backstroke Final Results" (PDF). Omega Timing. 14 December 2018. Retrieved 28 December 2024.
  77. 1 2 "2021 European Short Course Championships - Men's 4×50m Medley Relay Final Results" (PDF). microplustiming.com. 3 November 2021. Retrieved 8 May 2025.
  78. ↑ "2024 World Aquatics Cup (Shanghai) - Men's 50m Backstroke Heats Results" (PDF). Omega Timing. 19 October 2024. Retrieved 8 May 2025.
  79. ↑ "2021 International Swimming League (Match 3) - Men's 50m Backstroke Results" (PDF). Omega Timing. 2 September 2021. Retrieved 8 May 2025.
  80. ↑ "2021 International Swimming League (Match 6) - Men's 50m Backstroke Results" (PDF). Omega Timing. 11 September 2021. Retrieved 8 May 2025.
  81. ↑ "2021 International Swimming League (Match 2) - Men's 50m Backstroke Results" (PDF). Omega Timing. 14 December 2018. Retrieved 28 December 2024.
  82. ↑ "2025 European Championships (25m) - Men's 50m Backstroke Semifinals Results" (PDF). Omega Timing. 6 December 2025. Retrieved 8 December 2025.
  83. ↑ "16th FINA World Championships (25m) - Men's 4×50m Medley Relay Final Results" (PDF). Omega Timing. 17 December 2022. Retrieved 17 December 2022.
  84. ↑ "2025 European Championships (25m) - Men's 50m Backstroke Final Results" (PDF). Omega Timing. 7 December 2025. Retrieved 8 December 2025.
  85. ↑ "2018 FINA World Cup (Beijing) - Men's 50m Backstroke Final Results" (PDF). omegatiming.com. 3 November 2018. Retrieved 8 May 2025.
  86. ↑ "2022 FINA World Cup (Indianapolis) - Men's 50m Backstroke Final Results" (PDF). Omega Timing. 4 November 2022. Retrieved 5 November 2022.
  87. ↑ "2024 World Aquatics Championships (25m) - Men's 50m Backstroke Semifinals Results" (PDF). Omega Timing. 12 December 2024. Retrieved 8 May 2025.
  88. ↑ "2010 FINA World Cup (Eindhoven) - Men's 50m Backstroke Final Results" (PDF). omegatiming.com. 26 November 2010. Retrieved 8 May 2025.
  89. ↑ "2024 World Aquatics Cup (Singapore) - Men's 50m Backstroke Final Results" (PDF). omegatiming.com. 1 November 2024. Retrieved 1 November 2024.
  90. ↑ Sean Griffin (21 December 2025). "PAVEL SAMUSENKO RIPS 22.26 50 SCM BACK, #3 PERFORMANCE OF ALL TIME". SwimSwam. Retrieved 10 January 2026.
  91. ↑ "Women's 50m Backstroke Long Course All-Time Ranking". World Aquatics. Retrieved 2 August 2025.
  92. 1 2 "2025 US National Championships - Women's 50m Backstroke Final Results" (PDF). Omega Timing. 5 June 2025. Retrieved 5 June 2025.
  93. ↑ "2023 Queensland Championships - Women's 4×50m Medley Relay Final Results". Swimming Australia. 9 December 2023. Retrieved 10 May 2025.
  94. ↑ "2023 World Aquatics Cup (Athens) - Women's 50m Backstroke Final Results" (PDF). Omega Timing. 13 October 2023. Retrieved 31 March 2025.
  95. ↑ "2025 NSW Championships - Women's 50m Backstroke Heats Results". Swimming Australia. 23 March 2025. Retrieved 10 May 2025.
  96. 1 2 "2024 Australian Championships - Women's 50m Backstroke Final Results". swimming.org.au. 18 April 2024. Retrieved 20 April 2024.
  97. 1 2 "2023 World Aquatics Championships - Women's 50m Backstroke Final Results" (PDF). Omega Timing. 27 July 2023. Retrieved 31 March 2025.
  98. ↑ "2025 World Aquatics Championships - Women's 50m Backstroke Final Results" (PDF). Omega Timing. 31 July 2025. Retrieved 31 July 2025.
  99. ↑ Retta Race (24 March 2025). "Wan Letian Puts Up 27.09 50 Backstroke In China, #4 All Time". SwimSwam. Retrieved 28 March 2025.
  100. ↑ "Women's 50m Backstroke Final Results" (PDF). swimcup.nl. 10 April 2021. Archived from the original (PDF) on 10 April 2021. Retrieved 10 April 2021.
  101. ↑ "2023 World Aquatics Championships - Women's 50m Backstroke Semifinals Results" (PDF). Omega Timing. 26 July 2023. Retrieved 26 July 2023.
  102. ↑ "16th FINA World Championships - Women's 50m Backstroke Final Results" (PDF). Omega Timing. 6 August 2015. Retrieved 10 May 2025.
  103. 1 2 "2022 International Team Trials - Women's 50m Backstroke Final Results" (PDF). Omega Timing. 28 April 2022. Retrieved 13 May 2022.
  104. 1 2 "2023 US National Championships - Women's 50m Backstroke Final Results" (PDF). Omega Timing. 29 June 2023. Retrieved 31 March 2025.
  105. ↑ "2025 TYR Pro Swim Series (Fort Lauderdale) - Women's 50m Backstroke Heats Results" (PDF). Omega Timing. 1 May 2025. Retrieved 1 May 2025.
  106. 1 2 Will Baxley (8 June 2026). "McKeown & O'Callaghan Deliver 27.13/27.19 50 Back For Top 2 Spots In World Rankings". SwimSwam. Retrieved 8 June 2026.
  107. 1 2 3 "17th FINA World Championships - Women's 50m Backstroke Finals Results". Omega Timing. 27 July 2017. Retrieved 27 July 2017.
  108. ↑ Retta Race (24 May 2025). "Lauren Cox Nails British 50 Back Record on Day One of 2025 AP Race International". SwimSwam. Retrieved 24 May 2025.
  109. ↑ Braden Keith (15 April 2018). "Fu Yuanhui Swims World-leading 50 Backstroke at Chinese Championships". SwimSwam. Retrieved 10 May 2025.
  110. ↑ Retta Race (16 May 2021). "McKeown Caps Off Sydney Open With 27.16 50 Back Scorcher". SwimSwam. Retrieved 7 June 2021.
  111. ↑ "2020 European Championships - Women's 50m Backstroke Semifinals Results" (PDF). microplustiming.com. 18 May 2021. Retrieved 18 May 2021.
  112. 1 2 "2018 European Championships - Women's 50m Backstroke Heats Results" (PDF). microplustiming.com. 4 August 2018. Retrieved 31 March 2025.
  113. ↑ Terin Frodyma (19 April 2026). "2026 Russian Swimming Cup: Alina Gaifutdinova Swims World-Leading 27.23 50 Back on Day 3". SwimSwam. Retrieved 19 April 2026.
  114. ↑ "Women's 50m Backstroke Final Results" (PDF). Microplus Informatica. 14 August 2022. Retrieved 28 August 2022.
  115. ↑ Terin Frodyma (5 March 2026). "2026 Pro Swim Series — Westmont: Day 2 Finals Live Recap". SwimSwam. Retrieved 5 March 2026.
  116. ↑ John Lohn (30 April 2026). "Summer McIntosh Edges Katie Ledecky in Spectacular 400 Freestyle at Fort Lauderdale Open; Kate Douglass Doubles". Swimming World. Retrieved 30 April 2026.
  117. ↑ "2025 World University Games - Women's 50m Backstroke Final Results" (PDF). microplustimingservices.com. 22 July 2025. Retrieved 22 July 2025.
  118. ↑ "18th FINA World Championships - Women's 50m Backstroke Finals Results" (PDF). Omega Timing. 25 July 2019. Retrieved 10 May 2025.
  119. ↑ "2026 Italian Championships - Women's 50m Backstroke Final Results" (PDF). microplustiming.com. 15 April 2026. Retrieved 15 April 2026.
  120. ↑ "Women's 50m Backstroke Short Course All-Time Ranking". World Aquatics. Retrieved 13 October 2025.
  121. 1 2 3 "2025 World Aquatics Cup (Toronto) - Women's 50m Backstroke Final Results" (PDF). Omega Timing. 23 October 2025. Retrieved 23 October 2025.
  122. ↑ "2024 World Aquatics Cup (Shanghai) - Women's 50m Backstroke Final Results" (PDF). Omega Timing. 18 October 2024. Retrieved 26 October 2024.
  123. ↑ James Sutherland (18 October 2024). "Watch: Gretchen Walsh Breaks The World Record In The 100 Im & 3 American Records (Race Video)". SwimSwam. Retrieved 26 October 2024.
  124. ↑ "2024 Australian Championships (25m) - Women's 50m Backstroke Final Results". swimming.org.au. 28 September 2024. Retrieved 8 May 2025.
  125. 1 2 "2025 World Aquatics Cup (Carmel) - Women's 50m Backstroke Final Results" (PDF). Omega Timing. 10 October 2025. Retrieved 12 October 2025.
  126. ↑ "2025 European Championships (25m) - Women's 4×50m Medley Relay Final Results" (PDF). Omega Timing. 7 December 2025. Retrieved 8 December 2025.
  127. 1 2 "2024 World Aquatics Cup (Singapore) - Women's 50m Backstroke Final Results" (PDF). Omega Timing. 31 October 2024. Retrieved 12 November 2024.
  128. ↑ "2022 FINA World Championships (25m) - Women's 4×50m Medley Relay Final Results" (PDF). Omega Timing. 17 December 2022. Retrieved 18 December 2022.
  129. ↑ "2025 European Championships (25m) - Women's 50m Backstroke Final Results" (PDF). Omega Timing. 7 December 2025. Retrieved 8 December 2025.
  130. 1 2 "2024 World Aquatics Championships (25m) - Women's 50m Backstroke Semifinals Results Summary" (PDF). Omega Timing. 12 December 2024. Retrieved 28 December 2024.
  131. ↑ "Women's 50m Backstroke Final Results" (PDF). russwimming.ru. 24 November 2022. Archived from the original (PDF) on 24 November 2022. Retrieved 27 November 2022.
  132. ↑ "16th FINA World Championships (25 m) - Women's 50m Backstroke Semifinals Results" (PDF). Omega Timing. 15 December 2022. Retrieved 30 April 2025.
  133. ↑ "2025 World Aquatics Cup (Westmont) - Women's 50 Backstroke Final Results" (PDF). Omega Timing. 17 October 2025. Retrieved 19 October 2025.
  134. ↑ "2020 International Swimming League (Match 1) - Women's 50m Backstroke Results" (PDF). Omega Timing. 16 October 2020. Retrieved 8 May 2025.
  135. ↑ "2019 International Swimming League (Budapest) - Women's 50m Backstroke Results" (PDF). isl.global. 26 October 2019. p. 19. Retrieved 30 April 2025.
  136. ↑ "2021 FINA World Championships (25 m) - Women's 50m Backstroke Heats Results" (PDF). Omega Timing. 19 December 2021. Retrieved 20 December 2021.
  137. ↑ "16th FINA World Championships (25m) - Women's 50m Backstroke Heats Results" (PDF). Omega Timing. 15 December 2022. Retrieved 17 December 2022.
  138. ↑ "Japan Open: Tang Yi, Jiao Liuyang, Hidemasa Sano Set Respective National Records". Swimming World. 27 February 2010. Retrieved 8 May 2025.
  139. ↑ "2017 European Championships - Women's 50m Backstroke Results" (PDF). microplustiming.com. 16 December 2017. Archived from the original (PDF) on 17 December 2017. Retrieved 16 December 2017.
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