Swimming at the 2017 SEA Games – Men's 400 metre freestyle
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| Swimming – Men's 400 metre freestyle at the 2017 SEA Games | ||||||||||
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| Venue | National Aquatic Centre | |||||||||
| Date | 21 August 2017 | |||||||||
| Competitors | 11 from 7 nations | |||||||||
| Medalists | ||||||||||
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| Swimming at the 2017 SEA Games | ||
|---|---|---|
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| Freestyle | ||
| 50 m | men | women |
| 100 m | men | women |
| 200 m | men | women |
| 400 m | men | women |
| 800 m | women | |
| 1500 m | men | |
| Backstroke | ||
| 50 m | men | women |
| 100 m | men | women |
| 200 m | men | women |
| Breaststroke | ||
| 50 m | men | women |
| 100 m | men | women |
| 200 m | men | women |
| Butterfly | ||
| 50 m | men | women |
| 100 m | men | women |
| 200 m | men | women |
| Individual medley | ||
| 200 m | men | women |
| 400 m | men | women |
| Freestyle relay | ||
| 4×100 m | men | women |
| 4×200 m | men | women |
| Medley relay | ||
| 4×100 m | men | women |
| Marathon | ||
| 10 km | men | women |
The men's 400 metre freestyle competition of the swimming event at the 2017 SEA Games was held on 21 August at the National Aquatic Centre in Kuala Lumpur, Malaysia.
Records[edit]
Prior to this competition, the existing Asian and Games records were as follows:
| Asian Record |  Sun Yang (CHN) |
3:40.14 | London, Great Britain | 28 July 2012 |
| Games Record |  Welson Sim Wee Sheng (MAS) |
3:53.97 | Singapore, Singapore | 11 June 2015 |
Schedule[edit]
All times are Malaysia Standard Time (UTC+08:00)
| Date | Time | Event |
|---|---|---|
| Monday, 21 August 2017 | 09:20 | Heat 1 |
| 09:20 | Heat 2 | |
| 19:15 | Final |
Results[edit]
Heats[edit]
The heats were held on 21 August.
Heat 1[edit]
- Source: Heat 1 results
| Rank | Lane | Athletes | Time | Notes |
|---|---|---|---|---|
| 1 | 4 |  Aflah Fadlan Prawira (INA) |
03:59.32 | Q |
| 2 | 5 |  Tanakrit Kittiya (THA) |
04:01.21 | Q |
| 3 | 3 |  Jessie Khing Lacuna (PHI) |
04:01.84 | Q |
| 4 | 6 | Putera Muhammad Randa (INA) |
04:02.30 | Q |
| – | 2 |  Hoàng Quý Phước (VIE) |
DNS |
Heat 2[edit]
- Source: Heat 2 results
| Rank | Lane | Athletes | Time | Notes |
|---|---|---|---|---|
| 1 | 4 | Welson Sim Wee Sheng (MAS) |
03:56.20 | Q |
| 3 | 5 |  Pang Sheng Jun (SGP) |
03:59.80 | Q |
| 2 | 7 | Nguyễn Hữu Kim Sơn (VIE) |
04:00.44 | Q |
| 4 | 3 | Yeap Zheng Yang (MAS) |
04:03.09 | Q |
| 5 | 6 | Benedict Boon (SGP) |
04:03.85 | |
| 6 | 2 |  Ahnt Khaung Htut (MYA) |
04:31.80 |
Final[edit]
- Source: Final Results
The final was held on 21 August.
| Rank | Lane | Athletes | Time | Notes |
|---|---|---|---|---|
 |
4 | Welson Sim Wee Sheng (MAS) |
25.20 | |
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5 | Aflah Fadlan Prawira (INA) |
25.39 | |
 |
6 | Nguyễn Hữu Kim Sơn (VIE) |
25.82 | |
| 4 | 3 | Pang Sheng Jun (SGP) |
25.90 | |
| 5 | 2 | Tanakrit Kittiya (THA) |
26.10 | |
| 6 | 7 | Jessie Khing Lacuna (PHI) |
26.26 | |
| 7 | 8 | Yeap Zheng Yang (MAS) |
26.38 | |
| 8 | 1 | Putera Muhammad Randa (INA) |
26.49 |