Athletics at the 2015 Southeast Asian Games – Men's 400 metres
# Athletics at the 2015 Southeast Asian Games – Men's 400 metres

The men's 400 metres competition of the athletics event at the 2015 Southeast Asian Games was held on 12 June at the National Stadium in Singapore.

## Records

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

| Asian record | Yousef Ahmed Masrahi (KSA) | 44.43 | Lausanne, Switzerland | 3 July 2014 |
| - | - | - | - | - |
| Games record | Aktawat Sakoolchan (THA) | 46.05 | Chiang Mai, Thailand | 10 December 1995 |

The following records were established during the competition:

| Date | Event | Name | Nationality | Time | Record |
| - | - | - | - | - | - |
| 12 June 2015 | Men's 400 metres | Kunanon Sukkaew | THA | 46.00 | Games Record |

## Schedule

All times are Singapore Standard Time (UTC+08:00)

| Date | Time | Event |
| - | - | - |
| Saturday, 12 June 2015 | 9:40 | Heat 1 |
| Saturday, 12 June 2015 | 9:50 | Heat 2 |
| Saturday, 12 June 2015 | 16:50 | Final |

## Results

### Round 1

    Source: Results Summary
* Qualification: First 3 in each heat (Q) and the next 2 fastest (q) advance to the final.

**Heat 1**


    Source: Results Heat 1

| Rank | Athlete | Time | Notes |
| - | - | - | - |
| 1 | Quach Cong Lich (VIE) | 47.68 | Q |
| 2 | Mohamad Arif Zulhilmi Alet (MAS) | 47.80 | Q |
| 3 | Ng Chin Hui (SIN) | 48.76 | Q |
| 4 | Archand Christian Bagsit (PHI) | 48.78 | |
| 5 | Domingos Savio Dos Santos (TLS) | 50.79 | |

**Heat 2**


    Source: Results Heat 2

| Rank | Athlete | Time | Notes |
| - | - | - | - |
| 1 | Edgardo Alejan Jr. (PHI) | 47.62 | Q |
| 2 | Muncherji Zubin Percy (SIN) | 47.71 | Q, SB |
| 3 | Luong Van Thao (VIE) | 47.82 | Q |
| 4 | Kunanon Sukkaew (THA) | 47.92 | q |
| 5 | Dinesh Krishnan (MAS) | 48.22 | q |

### Final

    Source: Result Final

| Rank | Athlete | Time | Notes | |
| - | - | - | - | - |
| | Kunanon Sukkaew (THA) | 46.00 | GR | Video on YouTube Official Video |
| | Quach Cong Lich (VIE) | 46.02 | PB | Video on YouTube Official Video |
| | Edgardo Alejan Jr. (PHI) | 47.08 | SB | Video on YouTube Official Video |
| 4 | Luong Van Thao (VIE) | 47.16 | PB | Video on YouTube Official Video |
| 5 | Mohamad Arif Zulhilmi Alet (MAS) | 47.43 | | Video on YouTube Official Video |
| 6 | Muncherji Zubin Percy (SIN) | 47.87 | | Video on YouTube Official Video |
| 7 | Ng Chin Hui (SIN) | 48.83 | | Video on YouTube Official Video |
| 8 | Dinesh Krishnan (MAS) | 49.04 | | Video on YouTube Official Video |
