Swimming at the 2009 SEA Games – Women's 400 metre individual medley

Main article: Swimming at the 2009 SEA Games

The Women's 400 Individual Medley (or "I.M.") swimming event at the 2009 SEA Games was held in December 2009.

The Games Record at the start of the event was 4:51.87, swum by Joscelin Yeo at the 1999 SEA Games (on August 13).

Results

Final

Place	Swimmer	Nation	Time	Notes
1	Natthanan J.	Thailand	4:55.07
2	QUAH Ting Wen	Singapore	4:56.32
3	Hui Yu Koh	Singapore	4:56.73
4	Fibriani Marita	Indonesia	4:57.16
5	Chavisa T.	Thailand	4:58.30
6	SIOW Yi Ting	Malaysia	5:05.45
7	T Kim Tuyen Nguyen	Vietnam	5:05.45
8	Ressa Ressa	Indonesia	5:17.78

Preliminary heats

Rank	Swimmer	Nation	Time	Notes
1	Fibriani Marita	Indonesia	5:09.82	Q
2	SIOW Yi Ting	Malaysia	5:11.21	Q
3	Chavisa T.	Thailand	5:13.84	Q
4	Natthanan J.	Thailand	5:18.71	Q
5	Ressa Ressa	Indonesia	5:19.18	Q
6	QUAH Ting Wen	Singapore	5:19.06	Q
7	Hui Yu Koh	Singapore	5:20.33	Q
8	T Kim Tuyen Nguyen	Vietnam	5:27.06	Q
9	Wei Li Lai	Malaysia	5:27.23