2023 Asian Athletics Championships – Men's 400 metres

Men's 400 metres at the 2023 Asian Athletics Championships
Venue	National Stadium
Location	Bangkok, Thailand
Dates	12 July (heats & semi-finals) 13 July (final)
Competitors	26 from 18 nations
Winning time	45.00
Medalists
Kentaro Sato    Japan   Fuga Sato    Japan   Youssef Masrahi    Saudi Arabia
←  2019 2025  →

The men's 400 metres event at the 2023 Asian Athletics Championships was held on 12 and 13 July. ^[1]

Records

Records before the 2023 Asian Athletics Championships

Record	Athlete (nation)	Time (s)	Location	Date
World record [2]	Wayde Van Niekerk  (RSA)	43.03	Rio de Janeiro, Brazil	14 August 2016
Asian record [3]	Yousef Masrahi  (KSA)	43.93	Beijing, China	23 August 2015
Championship record	Sugath Thilakaratne  (SRI)	44.61	Fukuoka, Japan	20 July 1998
World leading [4]	Muzala Samukonga  (ZMB)	43.91	Gaborone, Botswana	29 April 2023
Asian leading [5]	Ashraf Osman  (QAT)	45.01	Marrakech, Morocco	21 June 2023

Results

Heats

Held on 12 July. ^[6] First 3 in each heat (Q) and the next 4 fastest (q) qualified for the semi-finals.

Heat 1

Rank	Athlete	Nation	Time	Notes
1	Ashraf Hussen Osman	Qatar	46.22	Q
2	Youssef Masrahi	Saudi Arabia	46.34	Q
3	Rajitha Niranjan Rajakaruna	Sri Lanka	46.52	Q
4	Umajesty Williams	Philippines	47.55
5	Mueed Abdul	Pakistan	48.18
6	Nguyễn Tùng Lâm	Vietnam	48.59
—	Lucky Yooyamadu	Thailand	DQ

Heat 2

Rank	Athlete	Nation	Time	Notes
1	Fuga Sato	Japan	45.97	Q
2	Ammar Ismail Yahya Ibrahim	Qatar	46.27	Q
3	Joshua Atkinson	Thailand	46.74	Q
4	Frederick Ramirez	Philippines	46.77	q
5	Yefim Tarassov	Kazakhstan	47.27	q
6	Hamza Abdullah Al-Jabri	Oman	47.49	q
7	Dilshodbek Boboqulov	Uzbekistan	48.80

Heat 3

Rank	Athlete	Nation	Time	Notes
1	Muhammad Ajmal	India	46.06	Q
2	Kentaro Sato	Japan	46.08	Q
3	Umar Osman	Malaysia	46.72	Q
4	Sarawut Nuansri	Thailand	47.55
5	Rajan Thiruben Thana	Singapore	47.69
6	Kumal Som Bahadur	Nepal	48.33	PB
7	Adam Riffath	Maldives	50.67	PB

Heat 4

Rank	Athlete	Nation	Time	Notes
1	Rajesh Ramesh	India	46.45	Q
2	Aruna Darshana	Sri Lanka	46.56	Q
3	Mikhail Litvin	Kazakhstan	46.86	Q
4	Kim Ui-Yeon	South Korea	47.52	q
5	Trần Đình Sơn	Vietnam	47.85
6	Zubin Percy Muncherji	Singapore	47.97
7	Mohamad Mortada	Lebanon	48.62
8	Abdul Rasheed Ismail	Maldives	50.72	PB

Semi-finals

Held on 12 July. ^[7] First 3 in each heat (Q) and the next 2 fastest (q) qualified for the final.

Heat 1

Rank	Athlete	Nation	Time	Notes
1	Fuga Sato	Japan	45.61	Q
2	Aruna Darshana	Sri Lanka	45.79	Q
3	Rajesh Ramesh	India	45.91	Q
4	Umar Osman	Malaysia	46.42
5	Frederick Ramirez	Philippines	46.53	PB
6	Mikhail Litvin	Kazakhstan	46.74
7	Kim Ui-yeon	South Korea	47.58
—	Ammar Ismail Yahya Ibrahim	Qatar	DNF

Heat 2

Rank	Athlete	Nation	Time	Notes
1	Kentaro Sato	Japan	45.64	Q
2	Youssef Masrahi	Saudi Arabia	45.66	Q
3	Ashraf Hussen Osman	Qatar	45.66	Q
4	Muhammad Ajmal	India	45.76	q
5	Rajitha Niranjan Rajakaruna	Sri Lanka	46.12	q, PB
6	Joshua Atkinson	Thailand	46.43
7	Yefim Tarassov	Kazakhstan	47.04
8	Hamza Abdullah Al-Jabri	Oman	47.45

Final

Held on 13 July. ^[8]

Rank	Lane	Athlete	Nation	Time	Notes
	6	Kentaro Sato	Japan	45.00	PB
	5	Fuga Sato	Japan	45.13	PB
	4	Youssef Masrahi	Saudi Arabia	45.19	SB
4	1	Muhammad Ajmal	India	45.36	PB
5	7	Ashraf Hussen Osman	Qatar	45.61
6	8	Rajesh Ramesh	India	45.67	PB
7	3	Aruna Darshana	Sri Lanka	45.69
8	2	Rajitha Niranjan Rajakaruna	Sri Lanka	46.60

References

1. Results at Tilastopaja
2. "400 Metres men - World record times". World Athletics. Retrieved 14 April 2025.
3. "400 Metres men - Asian record times". World Athletics. Retrieved 14 April 2025.
4. "400 Metres men - 2023 World leading times". World Athletics. Retrieved 14 April 2025.
5. "400 Metres men - 2023 Asian leading times". World Athletics. Retrieved 14 April 2025.
6. Heats results
7. Semifinal results
8. Final results