Swimming at the 2025 SEA Games – Men's 50 metre backstroke

Men's 50 metre backstroke at the 2025 SEA Games
Venue	SAT Swimming Pool
Date	11 December
Competitors	14 from 9 nations
Winning time	25.36
Medalists
Jason Yusuf    Indonesia   Quah Zheng Wen    Singapore   I Gede Siman Sudartawa    Indonesia
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Main article: Swimming at the 2025 SEA Games

The men's 50 metre backstroke event at the 2025 SEA Games took place on 11 December 2025 at the SAT Swimming Pool in Bangkok, Thailand.

Schedule

All times are Indochina Standard Time (UTC+07:00)

Date	Time	Event
Thursday, 11 December 2025	9:00	Heats
	18:00	Final

Records

Prior to this competition, the existing world, Asian and Games records were as follows.

World Record	Kliment Kolesnikov  (RUS)	23.55	Kazan, Russia	18 December 2009
Asian Record	Junya Koga  (JPN)	24.24	Rome, Italy	7 April 2019
Games Record	I Gede Siman Sudartawa  (INA)	25.12	New Clark City, Philippines	7 December 2019

Results

Heats

^{[1] [2]}

Rank	Heat	Lane	Swimmer	Nationality	Time	Notes
1	2	4	Quah Zheng Wen	Singapore	25.35	Q
2	1	4	Jason Yusuf	Indonesia	25.88	Q
3	1	5	Tedd Windsor Chan	Singapore	26.05	Q
4	1	3	Logan Noguchi	Philippines	26.25	Q
5	2	6	Joran Orogo	Philippines	26.32	Q
6	2	5	I Gede Siman Sudartawa	Indonesia	26.40	Q
7	2	3	Tonnam Kanteemool	Thailand	26.46	Q
8	1	6	Geargchai Rutnosot	Thailand	26.69	Q
9	1	2	Trịnh Trường Vinh	Vietnam	26.73	R
10	2	2	Daniel Scott Williams	Malaysia	26.91	R
11	1	7	Han Paing Htoo	Myanmar	31.68
12	2	7	Jirasak Khammavongkeo	Laos	31.96

Final

^[3]

Rank	Lane	Swimmer	Nationality	Time	Notes
	5	Jason Yusuf	Indonesia	25.36
	4	Quah Zheng Wen	Singapore	25.43
	2	I Gede Siman Sudartawa	Indonesia	25.49
4	3	Tedd Windsor Chan	Singapore	25.56
5	6	Joran Orogo	Philippines	26.22
6	1	Geargchai Rutnosot	Thailand	26.31
7	7	Tonnam Kanteemool	Thailand	26.34
8	8	Trịnh Trường Vinh	Vietnam	27.39

References

1. "Swimming - Men's 50m Freestyle Heats 1". 33rd SEA Games 2025. Retrieved 12 December 2025.
2. "Swimming - Men's 50m Freestyle Heats 2". 33rd SEA Games 2025. Retrieved 12 December 2025.
3. "Swimming - Men's 50m Freestyle Final". 33rd SEA Games 2025. Retrieved 12 December 2025.