Athletics at the 2013 Southeast Asian Games – Men's 400 metres
# Athletics at the 2013 Southeast Asian Games – Men's 400 metres

The men's 400 metres at the 2013 Southeast Asian Games, the athletics was held in Naypyidaw, Myanmar. The track and field events took place at the Wunna Theikdi Stadiumon December 15.

## Schedule

All times are Myanmar Standard Time (UTC+06:30)

| Date | Time | Event |
| - | - | - |
| Sunday, 15 December 2013 | 10:30 | Heats |
| Sunday, 15 December 2013 | 16:30 | Final |

## Records

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

| World Record | Michael Johnson (USA) | 43.18 | Seville, Spain | 26 August 1999 |
| - | - | - | - | - |
| Asian Record | Mohamed Amer Al-Malky (OMA) | 44.56 | Budapest, Hungary | 12 August 1988 |
| Games Record | Aktawat Sakulchan (THA) | 46.05 | Chiang Mai, Thailand | 10 December 1995 |

## Results

### Legend

* DSQ — Disqualified
* DNF — Do Not Finish

### Round 1

**Heat 1**

| Rank | Lane | Athlete | Time |
| - | - | - | - |
| 1 | 8 | Archand Christian Bagsit (PHI) | 47.83 |
| 2 | 4 | Mohamad Arif Zulhilmi Alet (MAS) | 47.86 |
| 3 | 7 | Heru Astriyanto (INA) | 48.06 |
| 4 | 3 | Trong Hinh Le (VIE) | 48.31 |
| 5 | 6 | Suppachai Chimdee (THA) | 48.56 |
| 6 | 1 | Guo Pei Loh (SIN) | 50.67 |
| 7 | 2 | Kyaw Zin Aung (MYA) | 51.00 |
| 8 | 5 | Samorn Kieng (CAM) | 51.54 |

**Heat 2**

| Rank | Lane | Athlete | Time |
| - | - | - | - |
| 1 | 4 | Edgardo Alejan Jr (PHI) | 48.02 |
| 2 | 3 | Edy Ariansyah (INA) | 48.05 |
| 3 | 5 | Srikharin Wannasa (THA) | 48.21 |
| 4 | 1 | Kannanthasan Subramaniam (MAS) | 48.49 |
| 5 | 7 | Zubin Percy Muncherji (SIN) | 48.90 |
| 6 | 8 | Thet Zaw Win (MYA) | 49.73 |
| 7 | 6 | Ak Hafiy Tajuddin Pg Rositi (BRU) | 49.94 |
| — | 2 | Cong Lich Quach (VIE) | DNF |

### Final

| Rank | Lane | Athlete | Time |
| - | - | - | - |
| | 3 | Archand Christian Bagsit (PHI) | 47.22 |
| | 6 | Edgardo Alejan Jr (PHI) | 47.45 |
| | 5 | Edy Ariansyah (INA) | 47.78 |
| 4 | 7 | Srikharin Wannasa (THA) | 47.83 |
| 5 | 4 | Mohamad Arif Zulhilmi Alet (MAS) | 48.23 |
| 6 | 8 | Heru Astriyanto (INA) | 48.75 |
| 7 | 1 | Kannanthasan Subramaniam (MAS) | 48.85 |
| 8 | 2 | Trong Hinh Le (VIE) | 49.22 |
