2011 Asian Athletics Championships – Men's 400 metres

The men's 400 metres at the 2011 Asian Athletics Championships was held at the Kobe Universiade Memorial Stadium on the 7 and 8 of July.^[1]

Medalists

Gold	Yousef Ahmed Masrahi Saudi Arabia
Silver	Hideyuki Hirose Japan
Bronze	Yūzō Kanemaru Japan

2011 Asian Athletics Championships
World record	Michael Johnson (USA)	43.18	Seville, Spain	26 August 1999
Asian record	Mohamed Amer Al-Malky (OMN)	44.56	Budapest, Hungary	12 August 1988
Championship record	Sugath Thilakaratne (SRI)	44.61	Fukuoka, Japan	1998

First 2 in each heat (Q) and 2 best performers (q) advanced to the Final.^[2]

Rank	Heat	Name	Nationality	Time	Notes
1	3	Ahmed Al-Marjibi	Oman	46.06	Q
2	2	Hideyuki Hirose	Japan	46.35	Q
3	3	Yousef Ahmed Masrahi	Saudi Arabia	46.47	Q
4	3	Yusuke Ishitsuka	Japan	46.58	q
5	3	Sajjad Hashemiahangari	Iran	46.79	q
6	1	Yuzo Kanemaru	Japan	46.84	Q
7	2	Park Bong-Go	South Korea	46.97	Q
8	1	Ismail Al-Sabani	Saudi Arabia	47.30	Q
9	1	Prasanna Sampath Amarasekara	Sri Lanka	47.31
10	2	Shake Mortaja	India	47.63
11	2	Hadi Rahimi	Iran	47.82
12	1	Dmitriy Korobeynikov	Kazakhstan	47.88
13	2	Heru Astriyanto	Indonesia	47.89	SB
13	3	Karar Al-Abbody	Iraq	47.89	SB
15	1	Obaid Al Quraini	Oman	48.11
16	3	Yuvaraaj Panerselvam	Malaysia	48.17
17	3	Hafiy Tajuddin Rositi	Brunei	49.81	PB
18	2	M. Tsetsegmaa	Mongolia	51.92
19	1	Haji Muhammad Sukardi	Brunei	52.00
20	1	Abdul Qahar Rahmati	Afghanistan	55.78

Rank	Lane	Name	Nationality	Time	Notes
	6	Yousef Ahmed Masrahi	Saudi Arabia	45.79
	4	Hideyuki Hirose	Japan	46.03
	7	Yuzo Kanemaru	Japan	46.38
4	2	Sajjad Hashemiahangari	Iran	46.53
5	3	Yusuke Ishitsuka	Japan	46.53
6	8	Ismail Al-Sabani	Saudi Arabia	47.15
	9	Park Bong-Go	South Korea	DNF
	5	Ahmed Al-Marjibi	Oman	DQ	FS