| Event |
|---|
| 211 - 400 m - BOYS - FINAL |
| Rec | Name | NOC | Year | |
|---|---|---|---|---|
| ASC REC | 46.87 s | PHITCHAYA SUNTHONTHUAM | THA | 2017 |
| FINAL | Photo Finish | |||||
| Pos | Lane | Bib | Name | NOC | Time | |
| 1 | 4 | 213 | MUHAMMAD ILHAM BIN SUHAIMI | MAS | 47.41 s | |
| 2 | 3 | 453 | TRAN NHAT HOANG | VIE | 48.16 s | |
| 3 | 6 | 113 | DEWA RADIKA SYA | INA | 48.74 s | |
| 4 | 8 | 218 | WAN MUHAMMAD FAZRY BIN WAN ZAHARY | MAS | 49.56 s | |
| 5 | 1 | 416 | POTCHARA PETCHKAEW | THA | 50.09 s | |
| 6 | 5 | 309 | LABITA, ALHRYAN E. | PHI | 50.13 s | |
| 7 | 2 | 417 | PRATCHAYA PRAPAS | THA | 50.19 s | |
| - | 7 | 107 | IFAN ANUGRAH SETIAWAN | INA | DNS | |
