| Place | Swimmer | Age | Club | Time | Std | Power pts |
|---|---|---|---|---|---|---|
| 1 | Masato Dacosta | 18 | CAUCSB | 51.97 | — | 695 |
| 2 | Devyn Caples | 14 | PCCROW | 53.26 | — | 784 |
| 1 | Sydney Lu | 16 | PCPLS | 54.40 | — | 846 |
| 3 | Hayden Tupper | 15 | PCPLS | 54.77 | — | 668 |
| 4 | Jai Channon | 16 | PCUN | 55.77 | — | 587 |
| 1 | Phil Lin | 13 | PCSRVA | 58.42 | — | 680 |
| 2 | Lauren Jhong | 17 | PCUN | 59.38 | — | 638 |
| 3 | Florence Lin | 15 | PCPLS | 1:01.14 | — | 610 |
| 2 | Luka Mijatovic | 11 | PCPLS | 1:01.42 | B | 828 |
| 3 | Rishi Chandrasekaran | 14 | HSCALI | 1:03.95 | — | 453 |
| 4 | Andrew Lillie | 15 | CAUN-0 | 1:07.21 | — | 361 |
| 1 | Eilidh Salgarino | 12 | PCSRVA | 1:10.87 | B | 448 |