# Swimming at the 2003 SEA Games

The Swimming competition at the 22nd SEA Games was held from 1 to 10 December 2003 in My Dinh Aquatics Centre, Hanoi, Vietnam. The competition featured 32 events (16 male, 16 female) swum in a long course (50m) pool.

## Medal summary
### Medal table
#### Key

* Host nation (Vietnam)
| Rank | Nation | Gold | Silver | Bronze | Total |
| 1 | Thailand (THA) | 13 | 8 | 9 | 30 |
| 2 | Singapore (SIN) | 8 | 8 | 6 | 22 |
| 3 | Malaysia (MAS) | 8 | 4 | 4 | 16 |
| 4 | Philippines (PHI) | 2 | 6 | 5 | 13 |
| 5 | Indonesia (INA) | 1 | 1 | 5 | 7 |
| 6 | Myanmar (MYA) | 0 | 4 | 0 | 4 |
| 7 | Vietnam (VIE)* | 0 | 1 | 3 | 4 |
| 8 | Cambodia (CAM) | 0 | 0 | 0 | 0 |
| 8 | Laos (LAO) | 0 | 0 | 0 | 0 |
| Totals (9 entries) | Totals (9 entries) | 32 | 32 | 32 | 96 |

### Medalists
#### Men's events

| Event | Gold | Gold | Silver | Silver | Bronze | Bronze |
| 50 m freestyle | Arwut Chinnapasaen | 23.33 | Allen Ong Hou Ming | 23.69 | Richard Sam Bera | 23.73 |
| 100 m freestyle | Allen Ong Hou Ming | 51.57 | Mark Chay | 51.96 | Miguel Molina | 52.85 |
| 200 m freestyle | Miguel Molina | 1:52.89 | Gary Tan | 1:53.58 | Daniel Bego | 1:55.36 |
| 400 m freestyle | Charnvudth Saengsri | 3:59.91 | Miguel Mendoza | 4:03.54 | Miguel Molina | 4:05.12 |
| 1500 m freestyle | Miguel Mendoza | 15:49.55 | Charnvudth Saengsri | 15:56.22 | Saw Yi Khy | 16:07.22 |
| 100 m backstroke | Alex Lim Keng Liat | 57.51 | Mark Chay | 59.14 | Suriya Suksuphak | 59.80 |
| 200 m backstroke | Alex Lim Keng Liat | 2:04.11 | Truong Ngoc Tuan | 2:08.00 | Suriya Suksuphak | 2:09.51 |
| 100 m breaststroke | Ratapong Sirisanont | 1:03.13 | Vorrawuti Aumpiwan | 1:03.94 | Nguyen Huu Viet | 1:04.77 |
| 200 m breaststroke | Ratapong Sirisanont | 2:16.67 | Vorrawuti Aumpiwan | 2:18.18 | Miguel Molina | 2:20.81 |
| 100 m butterfly | Alex Lim Keng Liat | 55.04 | Andy Wibowo | 55.86 | Gary Tan | 56.33 |
| 200 m butterfly | Donny Utomo | 2:04.17 | Ratapong Sirisanont | 2:04.32 | Albert Christiadi Sutanto | 2:05.03 |
| 200 m individual medley | Ratapong Sirisanont | 2:03.54 | Miguel Molina | 2:05.57 | Gary Tan | 2:05.94 |
| 400 m individual medley | Ratapong Sirisanont | 4:23.20 | Miguel Molina | 4:23.26 | Carlo Piccio | 4:31.52 |
| 4 × 100 m freestyle relay | Singapore | 3:28.42 | Malaysia | 3:30.99 | Indonesia | 3:31.86 |
| 4 × 200 m freestyle relay | Malaysia | 7:43.11 | Singapore | 7:43.86 | Thailand | 7:44.31 |
| 4 × 100 m medley relay | Thailand | 3:51.33 | Malaysia | 3:53.05 | Singapore | 3:53.06 |

#### Women's events

| Event | Gold | Gold | Silver | Silver | Bronze | Bronze |
| 50 m freestyle | Joscelin Yeo Wei Ling | 26.42 | Moe Thu Aung | 26.74 | Chui Lai Kwan | 27.22 |
| 100 m freestyle | Joscelin Yeo Wei Ling | 56.78 | Moe Thu Aung | 58.05 | Pilin Tachakittiranan | 58.74 |
| 200 m freestyle | Pilin Tachakittiranan | 2:05.19 | Moe Thu Aung | 2:05.55 | Nipaporn Tangtorrit | 2:07.43 |
| 400 m freestyle | Pilin Tachakittiranan | 4:21.57 | Christel Bouvron Mei Yen | 4:24.23 | Chorkaew Choompol | 4:26.90 |
| 800 m freestyle | Pilin Tachakittiranan | 9:02.12 | Chorkaew Choompol | 9:08.02 | Khoo Cai Lin | 9:09.47 |
| 100 m backstroke | Chonlathorn Vorathamrong | 1:05.47 | Lizza Danila | 1:07.00 | Elsa Manora Nasution | 1:07.38 |
| 200 m backstroke | Chonlathorn Vorathamrong | 2:19.11 | Lizza Danila | 2:21.48 | Bernadette Lee Jing Fei | 2:23.95 |
| 100 m breaststroke | Siow Yi Ting | 1:13.31 | Nicolette Teo | 1:13.67 | Tassamol Petchsangroj | 1:14.11 |
| 200 m breaststroke | Siow Yi Ting | 2:32.25 | Nicolette Teo | 2:36.36 | Tassamol Petchsangroj | 2:38.41 |
| 100 m butterfly | Joscelin Yeo Wei Ling | 1:01.32 | Moe Thu Aung | 1:01.74 | Christel Bouvron Mei Yen | 1:04.50 |
| 200 m butterfly | Christel Bouvron Mei Yen | 2:17.72 | Maria Georgina Gordeonco | 2:19.99 | Pilin Tachakittiranan | 2:20.15 |
| 200 m individual medley | Joscelin Yeo Wei Ling | 2:17.98 | Siow Yi Ting | 2:18.45 | Nicolette Teo | 2:22.85 |
| 400 m individual medley | Siow Yi Ting | 4:54.39 | Nimitta Thaveesupsoonthorn | 4:59.18 | Vo Thi Thanh Vy | 5:05.52 |
| 4 × 100 m freestyle relay | Singapore | 3:54.47 | Thailand | 3:56.64 | Indonesia | 4:06.66 |
| 4 × 200 m freestyle relay | Thailand | 8:34.30 | Singapore | 8:38.78 | Philippines | 8:54.33 |
| 4 × 100 m medley relay | Singapore | 4:20.49 | Thailand | 4:24.93 | Vietnam | 4:27.79 |