Events at the 2003 Asian Athletics Championships
Track events
100 m	men	women
200 m	men	women
400 m	men	women
800 m	men	women
1500 m	men	women
5000 m	men	women
10,000 m	men	women
100 m hurdles		women
110 m hurdles	men
400 m hurdles	men	women
3000 m steeplechase	men
4 × 100 m relay	men	women
4 × 400 m relay	men	women
Road events
20 km walk	men	women
Field events
High jump	men	women
Pole vault	men	women
Long jump	men	women
Triple jump	men	women
Shot put	men	women
Discus throw	men	women
Hammer throw	men	women
Javelin throw	men	women
Combined events
Heptathlon		women
Decathlon	men

The men's 400 metres event at the 2003 Asian Athletics Championships was held in Manila, Philippines on September 20–21.^[1]

Gold	Silver	Bronze
Fawzi Al-Shammari  Kuwait	Hamdan Odha Al-Bishi  Saudi Arabia	Yuki Yamaguchi  Japan

Rank	Heat	Name	Nationality	Time	Notes
1	1	Hamdan Odha Al-Bishi	Saudi Arabia	46.15	Q
2	1	Yuki Yamaguchi	Japan	46.37	Q
3	3	Sugath Thilakaratne	Sri Lanka	46.38	Q
4	2	Fawzi Al-Shammari	Kuwait	46.50	Q
5	2	Rohan Pradeep Kumara	Sri Lanka	46.72	Q
6	1	Jimar Aing	Philippines	46.82	q, PB
7	1	Manoj Lal	India	46.87	q
7	3	Mitsuhiro Sato	Japan	46.87	Q
9	3	Narong Nilploy	Thailand	46.95	SB
10	2	Mohammad Akefian	Iran	47.12
11	2	Denis Rypakov	Kazakhstan	47.55
12	3	Ahmad Sakeh Sumarsono	Indonesia	48.67
13	2	Banjong Lachua	Thailand	49.05
14	1	Saeed Al-Adhreai	Yemen	49.27
15	2	Yan Karubaba	Indonesia	50.14	SB
16	3	Ankhbayar Tumur	Mongolia	52.18	PB
17	2	Abdullah Ibrahim	Maldives	53.63	PB

Rank	Name	Nationality	Time	Notes
	Fawzi Al-Shammari	Kuwait	45.16
	Hamdan Odha Al-Bishi	Saudi Arabia	45.39
	Yuki Yamaguchi	Japan	46.18
4	Sugath Thilakaratne	Sri Lanka	46.21
5	Manoj Lal	India	46.77
6	Rohan Pradeep Kumara	Sri Lanka	46.92
7	Jimar Aing	Philippines	46.93
8	Mitsuhiro Sato	Japan	47.40