| Swimming – Women's 400 metre freestyle at the 2009 SEA Games | ||||||||||
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| Date | 11 December 2009 | |||||||||
| Winning time | 4:00.75 GR | |||||||||
| Medalists | ||||||||||
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 | This article needs additional citations for verification .(November 2024) |
The Women's 400 Freestyle swimming event at the 25th SEA Games was held on December 11, 2009.
Source: [1]
| Place | Lane | Swimmer | Nation | Time | Notes |
|---|---|---|---|---|---|
 | 4 | Khoo Cai Lin |  Malaysia | 4:10.75 | GR |
 | 5 | Lynette Lim |  Singapore | 4:11.24 | |
 | 6 | Quah Ting Wen | Singapore | 4:17.85 | |
| 4 | 3 | Rutai Santadvatana |  Thailand | 4:19.10 | |
| 5 | 7 | Erica Totten |  Philippines | 4:21.70 | |
| 6 | 8 | Wei Li Lai | Malaysia | 4:28.20 | |
| 7 | 2 | Benjaporn Sriphanomtorn | Thailand | 4:30.48 | |
| 8 | 1 | Raina Saumi |  Indonesia | 4:30.74 | |
| Rank | Heat/Lane | Swimmer | Nation | Time | Notes |
|---|---|---|---|---|---|
| 1 | H2 L5 | Khoo Cai Lin | Malaysia | 4:27.50 | Q |
| 2 | H1 L4 | Lynette Lim | Singapore | 4:27.78 | Q |
| 3 | H1 L5 | Erica Totten | Philippines | 4:28.00 | Q |
| 4 | H2 L4 | Quah Ting Wen | Singapore | 4:28.07 | Q |
| 5 | H1 L3 | Rutai Santadvatana | Thailand | 4:28.10 | Q |
| 6 | H2 L6 | Wei Li Lai | Malaysia | 4:29.71 | Q |
| 7 | H1 L6 | Raina Saumi | Indonesia | 4:29.95 | Q |
| 8 | H2 L3 | Benjaporn Sriphanomtorn | Thailand | 4:33.56 | Q |
| 9 | H2 L2 | Ressa Ressa | Indonesia | 4:36.85 | |
