Swimming at the 2013 Southeast Asian Games – Men's 100 metre butterfly
# Swimming at the 2013 Southeast Asian Games – Men's 100 metre butterfly

The Men's 100 metre butterfly event at the 2013 Southeast Asian Games took place on 14 December 2013 at Wunna Theikdi Aquatics Centre.

There were 15 competitors from 8 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 Myanmar Standard Time (UTC+06:30)

| Date | Time | Event |
| - | - | - |
| Saturday, 14 December 2013 | 09:20 | Heats |
| Saturday, 14 December 2013 | 18:43 | Final |

## Records

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

| World Record | Michael Phelps (USA) | 49.82 | Rome, Italy | 1 August 2009 |
| - | - | - | - | - |
| Asian Record | Kohei Kawamoto (JPN) | 51.00 | Niigata, JPN | 11 September 2009 |
| Games Record | Hoang Quy Phuoc (VIE) | 53.07 | Palembang, Indonesia | 13 November 2011 |

## Results

### Heats

| Rank | Heat | Lane | Athlete | Time | Notes |
| - | - | - | - | - | - |
| 1 | 2 | 4 | Joseph Schooling (SIN) | 55.03 | Q |
| 2 | 1 | 3 | Jessie Khing Lacuna (PHI) | 56.09 | Q |
| 3 | 2 | 3 | Supakrid Pananuratana (THA) | 56.43 | Q |
| 4 | 1 | 4 | Hoang Quy Phuoc (VIE) | 56.69 | Q |
| 5 | 2 | 2 | Kai Wee Rainer Ng (SIN) | 56.81 | Q |
| 6 | 2 | 5 | Glenn Victor Sutanto (INA) | 56.90 | Q |
| 7 | 2 | 6 | Siwat Matangkapong (THA) | 56.91 | Q |
| 8 | 1 | 5 | Triady Fauzi Sidiq (INA) | 57.09 | Q |
| 9 | 1 | 6 | Phan Lam Yen (VIE) | 57.61 | |
| 10 | 1 | 2 | Thiha Aung (MYA) | 1:01.42 | |
| 11 | 1 | 7 | Chamraen Youri Maximov (CAM) | 1:05.28 | |
| 12 | 2 | 7 | Nay Aung Linn (MYA) | 1:05.82 | |
| 13 | 2 | 1 | Ratha Phin (CAM) | 1:09.88 | |
| 14 | 2 | 8 | Sergey Sihanouvong (LAO) | 1:10.43 | |
| 15 | 1 | 1 | Saylom Souvannala (LAO) | 1:10.50 | |

### Final

| Rank | Lane | Athlete | Time | Notes |
| - | - | - | - | - |
| | 4 | Joseph Schooling (SIN) | 52.67 | GR |
| | 8 | Triady Fauzi Sidiq (INA) | 53.14 | |
| | 7 | Glenn Victor Sutanto (INA) | 53.93 | |
| 4 | 6 | Hoang Quy Phuoc (VIE) | 54.63 | |
| 5 | 5 | Jessie Khing Lacuna (PHI) | 55.08 | |
| 6 | 3 | Supakrid Pananuratana (THA) | 55.99 | |
| 7 | 2 | Kai Wee Rainer Ng (SIN) | 56.18 | |
| 8 | 1 | Siwat Matangkapong (THA) | 56.24 | |
