400m Heats - (W), Heat:2 of 2 ; Official result since 13:13
| Rank | Lane | ID | Name | PB | Team | Cat | Result | Info | Video |
| 1 | 7 | 105 | FAQIHAH MOHD YUSUF FATHIN | MAS | 57.87 | Q | |||
| 2 | 6 | 187 | JOY KUAN HUI MIN | 59.55s | SIN | 58.68 | Q | ||
| 3 | 2 | 25 | CHUA YAN CHING | 58,58 | HKG | 58.99 | Q | ||
| 4 | 4 | 239 | TYRA SUMMER REE | 61,25 | SIN | 59.97 | q | ||
| 5 | 3 | 211 | NG JIA YI | SIN | 1:02.59 | ||||
| 6 | 5 | 307 | RUFUS RUELIA | 63.45s | WAC | 1:03.50 |