Swimming at the 2015 Southeast Asian Games – Men's 100 metre backstroke
# Swimming at the 2015 Southeast Asian Games – Men's 100 metre backstroke

The Men's 100 metre backstroke event at the 2015 Southeast Asian Games took place on 6 June 2015 at the OCBC Aquatic Centre in the Singapore Sports Hub.

There were 11 competitors from eight countries who took part in this event. Two heats were held. The heat in which a swimmer competed did not formally matter for advancement, as the swimmers with the top eight times from both field qualified for the finals.

## Schedule

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

| Date | Time | Event |
| - | - | - |
| Saturday, 6 June 2015 | 09:16 | Heats |
| Saturday, 6 June 2015 | 19:49 | Final |

## Records

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

| World Record | Aaron Peirsol (USA) | 51.94 | Indianapolis, United States | 8 July 2009 |
| - | - | - | - | - |
| Asian Record | Ryosuke Irie (JPN) | 52.24 | Kumamoto, Japan | 5 September 2009 |
| Games Record | I Gede Siman Sudartawa (INA) | 55.59 | Palembang, Indonesia | 15 November 2011 |

The following records were established during the competition:

| Date | Event | Name | Nationality | Time | Record |
| - | - | - | - | - | - |
| 6 June | Final | Quah Zheng Wen | Singapore | 54.51 | GR |

## Results

### Heats

| Rank | Heat | Lane | Athlete | Time | Notes |
| - | - | - | - | - | - |
| 1 | 2 | 4 | I Gede Siman Sudartawa (INA) | 58.11 | Q |
| 2 | 2 | 5 | Trần Duy Khôi (VIE) | 58.24 | Q |
| 3 | 2 | 3 | Ricky Anggawijaya (INA) | 58.25 | Q |
| 4 | 1 | 4 | Quah Zheng Wen (SIN) | 58.84 | Q |
| 5 | 1 | 5 | Ong Wei Shien Zach (SIN) | 58.95 | Q |
| 6 | 1 | 3 | Tern Jian Han (MAS) | 59.02 | Q |
| 7 | 2 | 2 | Kasipat Chograthin (THA) | 59.04 | Q |
| 8 | 2 | 6 | Jose Joaquin Gonzalez (PHI) | 59.45 | Q |
| 9 | 1 | 6 | Supakrid Pananuratana (THA) | 1:00.29 | |
| 10 | 1 | 2 | Thint Myat (MYA) | 1:09.86 | |
| 11 | 2 | 7 | Pirort Cheng (CAM) | 1:12.47 | |

### Final

| Rank | Lane | Athlete | Time | Notes |
| - | - | - | - | - |
| | 6 | Quah Zheng Wen (SIN) | 54.51 | GR |
| | 4 | I Gede Siman Sudartawa (INA) | 55.60 | |
| | 5 | Trần Duy Khôi (VIE) | 56.31 | |
| 4 | 3 | Ricky Anggawijaya (INA) | 57.28 | |
| 5 | 7 | Tern Jian Han (MAS) | 57.30 | |
| 6 | 1 | Kasipat Chograthin (THA) | 57.48 | NR |
| 7 | 2 | Ong Wei Shien Zach (SIN) | 57.71 | |
| 8 | 8 | Jose Joaquin Gonzalez (PHI) | 59.83 | |
