Swimming at the 2018 Asian Games – Men's 400 metre individual medley
# Swimming at the 2018 Asian Games – Men's 400 metre individual medley

The men's 400 metre individual medley event at the 2018 Asian Games took place on 22 August at the Gelora Bung Karno Aquatic Stadium.

## Schedule

All times are Western Indonesia Time (UTC+07:00)

| Date | Time | Event |
| - | - | - |
| Wednesday, 22 August 2018 | 09:47 | Heats |
| Wednesday, 22 August 2018 | 18:56 | Final |

## Records

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

| World Record | Michael Phelps (USA) | 4:03.84 | Beijing, China | 10 August 2008 |
| - | - | - | - | - |
| Asian Record | Kosuke Hagino (JPN) | 4:06.05 | Rio de Janeiro, Brazil | 6 August 2016 |
| Games Record | Kosuke Hagino (JPN) | 4:07.75 | Incheon, South Korea | 24 September 2014 |

## Results

### Heats

| Rank | Heat | Athlete | Time |
| - | - | - | - |
| 1 | 3 | Daiya Seto (JPN) | 4:16.16 |
| 2 | 2 | Kosuke Hagino (JPN) | 4:16.17 |
| 3 | 3 | Wang Shun (CHN) | 4:18.67 |
| 4 | 2 | Wang Yizhe (CHN) | 4:21.55 |
| 5 | 2 | Kim Min-suk (KOR) | 4:21.95 |
| 6 | 2 | Cho Cheng-chi (TPE) | 4:23.01 |
| 7 | 3 | Joo Jae-gu (KOR) | 4:23.86 |
| 8 | 3 | Nguyễn Hữu Kim Sơn (VIE) | 4:27.18 |
| 9 | 3 | Wang Hsing-hao (TPE) | 4:27.99 |
| 10 | 2 | Aflah Fadlan Prawira (INA) | 4:29.00 |
| 11 | 2 | Zachary Tan (SGP) | 4:29.87 |
| 12 | 3 | Pang Sheng Jun (SGP) | 4:29.94 |
| 13 | 3 | Marcus Mok (HKG) | 4:33.46 |
| 14 | 2 | Jonathan Liao (HKG) | 4:41.60 |
| 15 | 1 | Abdelrahman Hesham Mohamed (QAT) | 4:46.30 |
| 16 | 1 | Abdulrahman Al-Kulaibi (OMA) | 4:54.22 |
| 17 | 1 | Mubal Azzam Ibrahim (MDV) | 5:35.41 |

### Final

| Rank | Athlete | Time |
| - | - | - |
| | Daiya Seto (JPN) | 4:08.79 |
| | Kosuke Hagino (JPN) | 4:10.30 |
| | Wang Shun (CHN) | 4:12.31 |
| 4 | Wang Yizhe (CHN) | 4:19.61 |
| 5 | Joo Jae-gu (KOR) | 4:20.77 |
| 6 | Nguyễn Hữu Kim Sơn (VIE) | 4:22.86 |
| 7 | Cho Cheng-chi (TPE) | 4:23.18 |
| 8 | Kim Min-suk (KOR) | 4:23.39 |
