Isabelle Haverlag (born 4 March 2001) is a Dutch tennis player who specializes in doubles. She has a career-high doubles ranking of No. 66 by the WTA, achieved on 4 May 2026.[2] She has won two WTA 125 doubles titles as well as 14 doubles titles on the ITF Women's World Tennis Tour.[3]
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| Country (sports) |  Netherlands |
|---|---|
| Born | 4 March 2001 |
| Turned pro | 2018[1] |
| Plays | Left-handed |
| Prize money | $169,671 |
| Singles | |
| Career record | 34–61 |
| Career titles | 0 |
| Highest ranking | No. 1,236 (12 August 2019) |
| Doubles | |
| Career record | 248–180 |
| Career titles | 2 WTA 125, 14 ITF |
| Highest ranking | No. 66 (4 May 2026) |
| Current ranking | No. 68 (18 May 2026) |
| Grand Slam doubles results | |
| Australian Open | 1R (2026) |
| French Open | 1R (2026) |
| Wimbledon | 1R (2025) |
| Last updated on: 18 May 2026. | |
Career
editShe won her first big title at the 2022 Open de Seine-et-Marne, in the doubles draw, partnering Justina Mikulskytė.[4]
In June 2022, she made her WTA Tour debut in doubles with compatriot Suzan Lamens at her home tournament, the Rosmalen Open, where as a wildcard pair they reached the quarterfinals defeating third seeds Kaitlyn Christian and Giuliana Olmos.[5][6] In July 2024 at the Budapest Grand Prix, she reached the semifinals with Christina Rosca.[7][8]
In February 2025 at the ATX Open, Haverlag and her partner Alicja Rosolska reached the semifinals defeating second seeded pair of former No. 1 doubles player Storm Hunter and former top 10 player Caroline Dolehide en route.[9][10] Playing alongside Simona Waltert, she won her first WTA 125 doubles title at the 2025 Ilkley Open by defeating Vitalia Diatchenko and Eden Silva in the final.[11]
Partnering Maia Lumsden, Haverlag reached her first WTA Tour final at the 2026 Mérida Open, losing to second seeds Cristina Bucșa and Jiang Xinyu.[12] Once again teaming up with Lumsden, she won the second WTA 125 title at the 2026 Open de Saint-Malo, defeating Chan Hao-ching and Ivana Corley in the final.[13]
Performance timeline
edit| W | F | SF | QF | #R | RR | Q# | DNQ | A | NH |
(W) winner; (F) finalist; (SF) semifinalist; (QF) quarterfinalist; (#R) rounds 4, 3, 2, 1; (RR) round-robin stage; (Q#) qualification round; (DNQ) did not qualify; (A) absent; (NH) not held; (SR) strike rate (events won / competed); (W–L) win–loss record.
To avoid confusion and double counting, these charts are updated at the conclusion of a tournament or when the player's participation has ended.
WTA Tour finals
editDoubles: 1 (runner-up)
edit
|
|
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
|---|---|---|---|---|---|---|---|---|
| Loss | 0–1 | Mar 2026 | Mérida Open, Mexico | WTA 500 | Hard |  Maia Lumsden |
 Cristina Bucșa Jiang Xinyu |
4–6, 1–6 |
WTA 125 finals
editDoubles: 6 (3 titles, 3 runner-ups)
edit| Result | W–L | Date | Tournament | Surface | Partner | Opponents | Score |
|---|---|---|---|---|---|---|---|
| Win | 1–0 | Jun 2025 | Ilkley Open, United Kingdom | Grass |  Simona Waltert |
 Vitalia Diatchenko Eden Silva |
6–1, 6–1 |
| Loss | 1–1 | Jul 2025 | Contrexéville Open, France | Clay | Emily Appleton |
 Quinn Gleason  Ingrid Martins |
1–6, 6–7(4–7) |
| Loss | 1–2 | Jul 2025 | Kozerki Open, Poland | Hard |  Martyna Kubka |
Weronika Falkowska  Dominika Šalková |
2–6, 1–6 |
| Loss | 1–3 | Mar 2026 | Austin Challenger, United States | Hard | Sabrina Santamaria |
 Chan Hao-ching  Miyu Kato |
2–6, 3–6 |
| Win | 2–3 | May 2026 | Open de Saint-Malo, France | Clay | Maia Lumsden |
Chan Hao-ching Ivana Corley |
6–4, 6–0 |
| Win | 3–3 | Jun 2026 | Makarska Open, Croatia | Clay | Simona Waltert |
Ingrid Martins Ekaterina Ovcharenko |
2–2, ret. |
ITF Circuit finals
editDoubles: 37 (14 titles, 23 runner-ups)
edit| Legend |
|---|
| W100 tournaments |
| W60/75 tournaments |
| W40/50 tournaments |
| W25/35 tournaments |
| W15 tournaments |
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
|---|---|---|---|---|---|---|---|---|
| Win | 1–0 | Mar 2018 | ITF Amiens, France | W15 | Clay |  Julie Belgraver |
 Lara Salden Camille Sireix |
7–6(4), 6–2 |
| Loss | 1–1 | Aug 2018 | ITF Rotterdam, Netherlands | W15 | Clay | Dewi Dijkman |
Suzan Lamens  Sviatlana Pirazhenka |
3–6, 6–4, [5–10] |
| Loss | 1–2 | Jul 2019 | ITF Cancún, Mexico | W15 | Hard | Dewi Dijkman |
Thaisa Grana Pedretti  María Portillo Ramírez |
5–7, 3–6 |
| Loss | 1–3 | Oct 2019 | ITF Tabarka, Tunisia | W15 | Clay |  Anastasia Pribylova |
 Giulia Crescenzi Aurora Zantedeschi |
7–5, 6–7(4), [8–10] |
| Win | 2–3 | Nov 2019 | ITF Solarino, Italy | W15 | Carpet | Anna Popescu |
Maria Masini Anastasia Piangerelli |
6–1, 6–1 |
| Win | 3–3 | Mar 2021 | ITF Monastir, Tunisia | W15 | Hard | Anastasia Pribylova |
Rina Saigo Yukina Saigo |
6–3, 6–1 |
| Win | 4–3 | Mar 2021 | ITF Monastir, Tunisia | W15 | Hard | Anastasia Pribylova |
 Anastasia Kulikova Yasmine Mansouri |
6–3, 6–1 |
| Win | 5–3 | Apr 2021 | ITF Monastir, Tunisia | W15 | Hard | Anastasia Pribylova |
 Alexandra Osborne Andrea Renée Villarreal |
6–3, 6–1 |
| Loss | 5–4 | Apr 2021 | ITF Cairo, Egypt | W15 | Clay | Merel Hoedt |
Elina Avanesyan Maria Timofeeva |
6–1, 4–6, [8–10] |
| Win | 6–4 | Feb 2022 | ITF Sharm El Sheikh, Egypt | W25 | Hard |  Justina Mikulskytė |
 Irina Fetecău Simona Waltert |
6–1, 6–2 |
| Loss | 6–5 | Feb 2022 | ITF Santo Domingo, Dominican Rep. | W25 | Hard | Jasmijn Gimbrère |
Anna Rogers Christina Rosca |
2–6, 2–6 |
| Win | 7–5 | Apr 2022 | Open de Seine-et-Marne, France | W60 | Hard (i) | Justina Mikulskytė |
Sofya Lansere Oksana Selekhmeteva |
6–4, 6–2 |
| Loss | 7–6 | Apr 2022 | ITF Nottingham, United Kingdom | W25 | Hard | Ioana Loredana Roșca |
 Eudice Chong Cody Wong |
2–6, 3–6 |
| Loss | 7–7 | May 2022 | ITF Platja d'Aro, Spain | W25 | Clay |  Valeriya Strakhova |
Ángela Fita Boluda  Andrea Gámiz |
4–6, 6–3, [3–10] |
| Win | 8–7 | Jul 2022 | ITF Hague, Netherlands | W25 | Clay | Jasmijn Gimbrère |
Nikki Redelijk Bente Spee |
6–2, 6–4 |
| Loss | 8–8 | Jul 2022 | Open Araba en Femenino, Spain | W60 | Hard | Justina Mikulskytė |
Maria Bondarenko Ioana Loredana Roșca |
6–4, 4–6, [9–11] |
| Loss | 8–9 | Jul 2022 | ITF Nottingham, United Kingdom | W25 | Hard | Jasmijn Gimbrère |
Lee Pei-chi Wu Fang-hsien |
3–6, 2–6 |
| Loss | 8–10 | Oct 2022 | Monastir Open, Tunisia | W60 | Hard | Suzan Lamens |
 Priska Madelyn Nugroho Wei Sijia |
3–6, 2–6 |
| Loss | 8–11 | Feb 2023 | GB Pro-Series Bath, UK | W25 | Hard (i) | Emily Appleton |
Lauryn John-Baptiste  Katarína Strešnaková |
6–7(4), 4–6 |
| Win | 9–11 | May 2023 | ITF Bodrum, Turkey | W60 | Clay | Oana Gavrilă |
 Ayla Aksu Harriet Dart |
6–4, 7–6(3) |
| Loss | 9–12 | Jul 2023 | ITF The Hague, Netherlands | W40 | Clay | Jasmijn Gimbrère |
Kristina Mladenovic Arantxa Rus |
4–6, 0–6 |
| Loss | 9–13 | Aug 2023 | Internazionali di Cordenons, Italy | W60 | Clay | Eva Vedder |
Angelica Moratelli Camilla Rosatello |
6–0, 2–6, [5–10] |
| Loss | 9–14 | Aug 2023 | ITF Oldenzaal, Netherlands | W40 | Clay | Eva Vedder |
 Gergana Topalova  Daniela Vismane |
5–7, 6–2, [5–10] |
| Loss | 9–15 | Oct 2023 | Open Nantes Atlantique, France | W60 | Hard (i) | Emily Appleton |
Ali Collins Lily Miyazaki |
6–7(4), 2–6 |
| Loss | 9–16 | Nov 2023 | ITF Pétange, Luxembourg | W40 | Hard (i) | Ali Collins |
Alicia Barnett Samantha Murray Sharan |
7–6(4), 1–6, [6–10] |
| Loss | 9–17 | Jan 2024 | ITF Naples, United States | W35 | Clay | Lia Karatancheva |
Elvina Kalieva Maria Kozyreva |
0–6, 0–6 |
| Loss | 9–18 | Feb 2024 | ITF Mâcon, France | W50 | Hard (i) | Madeleine Brooks |
Silvia Ambrosio  Lena Papadakis |
7–5, 5–7, [7–10] |
| Win | 10–18 | Mar 2024 | Trnava Indoor, Slovakia | W75 | Hard (i) | Anna Rogers |
Liang En-shuo Tang Qianhui |
6–3, 4–6, [12–10] |
| Win | 11–18 | Oct 2024 | Slovak Open, Slovakia | W75 | Hard (i) | Elena Pridankina |
Katarína Kužmová Nina Vargová |
7–5, 6–2 |
| Loss | 11–19 | Oct 2024 | GB Pro-Series Glasgow, UK | W75 | Hard (i) |  Mariam Bolkvadze |
Jodie Burrage Freya Christie |
4–6, 6–3, [5–10] |
| Win | 12–19 | Oct 2024 | Hamburg Ladies Cup, Germany | W75 | Hard (i) | Madeleine Brooks |
 Riya Bhatia Lian Tran |
6–3, 6–2 |
| Loss | 12–20 | Nov 2024 | Ismaning Open, Germany | W75 | Carpet (i) | Carole Monnet |
Aneta Kučmová Aneta Laboutková |
6–4, 4–6, [7–10] |
| Win | 13–20 | Nov 2024 | Trnava Indoor, Slovakia | W75 | Hard (i) | Madeleine Brooks |
Anastasia Dețiuc Aneta Kučmová |
7–6(5), 6–1 |
| Loss | 13–21 | Dec 2024 | Dubai Tennis Challenge, United Arab Emirates | W100 | Hard | Elena Pridankina |
Anastasia Dețiuc Anastasia Tikhonova |
3–6, 7–6(7), [8–10] |
| Loss | 13–22 | Feb 2025 | AK Ladies Open, Germany | W75 | Carpet (i) | Emily Appleton |
Marie Benoît  Dalila Jakupović |
5–7, 6–7(6) |
| Win | 14–22 | Mar 2025 | Trnava Indoor, Slovakia | W75 | Hard (i) | Elena Pridankina |
Magali Kempen Jessika Ponchet |
6–2, 6–3 |
| Loss | 14–23 | Jan 2026 | ITF Fujairah Championships, U.A.E. | W100 | Hard | Elena Pridankina |
Harriet Dart Maia Lumsden |
1–6, 0–6 |
References
edit- ↑ "Tennis Explorer". Tennis Explorer. December 30, 2024. Retrieved December 30, 2024.
- ↑ "Isabelle Haverlag | Player Stats & More – WTA Official". Women's Tennis Association.
- ↑ "Isabelle Haverlag doubles titles". Retrieved 1 March 2025.
- ↑ "J.Mikulskytė su I.Haverlag triumfavo Prancūzijoje: pelnė net po 80 WTA dvejetų reitingo taškų". sportas.lt (in Lithuanian).
- ↑ "MAANDAG 6 JUNI 2022 • SPEELDAG" (PDF) (in Dutch).
- ↑ "VRIJDAG 10 JUNI 2022 • SPEELDAG" (PDF) (in Dutch).
- ↑ "Bondár Anna az egyetlen továbbjutó egyesben" (in Hungarian). 16 July 2024.
- ↑ "Tenisz: Bondár Anna búcsúzott párosban a Római-parton" (in Hungarian). 17 July 2024.
- ↑ "TENIS. ALICJA ROSOLSKA I ISABELLE HAVERLAG WYGRAŁY Z UZNANYMI DEBLISTKAMI" (in Polish). 24 February 2025.
- ↑ "MONDAY RECAP: AJLA TOMLJANOVIC SHINES IN ATX OPEN DEBUT". 25 February 2025.
- ↑ "Lexus Ilkley Open 2025: Iva Jovic crowned women's singles champion after dominant final". Lawn Tennis Association. Retrieved 19 May 2026.
- ↑ "Henry Patten claims Dubai doubles title as Maia Lumsden finishes runner-up at Merida Open". Lawn Tennis Association. Retrieved 2 March 2026.
- ↑ "Henry Patten crowned Madrid champion as Maia Lumsden, Harriet Dart & Heather Watson seal doubles titles". Lawn Tennis Association. Retrieved 19 May 2026.
