| Lane | # | Athlete | Age | Team | Seed | Note |
|---|---|---|---|---|---|---|
| 2 | 581 | SEAH, BRYAN | 15 | Hwa Chong Institution | NT | |
| 3 | 213 | HO, JOSH JUNHAO | 15 | Dunman High School | NT | |
| 4 | 425 | CURRAN, HARRY IRFAN | 14 | Team Cicada Trackers | 52.84 | |
| 5 | 427 | CURRAN, JAKE ARYAN | 14 | Team Cicada Trackers | 59.34 | |
| 6 | 579 | KHO, YUAN ZU | 15 | Hwa Chong Institution | NT |