| Place | Swimmer | Age | Club | Time | Std | Power pts |
|---|---|---|---|---|---|---|
| 1 | Ivan Goulart | 15 | PCALTO | 51.26 | AAAA | 814 |
| 2 | Jackson Grafilo | 18 | WSMR | 54.18 | A | 614 |
| 3 | Wyatt Hui | 17 | PCDCD | 55.48 | A | 574 |
| 4 | Xian Lumbang | 17 | PCDCD | 56.16 | A | 554 |
| 5 | Donald Zhu | 15 | PCSSF | 56.44 | A | 610 |
| 1 | Kamryn Stevenson | 17 | PCPPSC | 1:00.07 | AA | 616 |
| 6 | Jacob Liu | 15 | ELCM | 1:01.01 | BB | 483 |
| 7 | Jerrick Sunga | 17 | ELCM | 1:01.38 | BB | 424 |
| 8 | Youjia Li | 16 | PCSSF | 1:07.45 | — | 332 |
| 2 | Caitlyn SO | 17 | ELCM | 1:08.97 | B | 407 |
| 3 | Naia Schmidt | — | HMBA | 1:09.36 | — | — |
| 4 | Kassandra Peig | 16 | PCSSF | 1:09.63 | B | 403 |
| 5 | Amelie Pace | — | TENO | 1:12.59 | — | — |
| 9 | Ivan Tong | 16 | ELCM | 1:12.93 | — | 262 |
| 6 | Bryce Thiele | — | OCEA | 1:23.58 | — | — |
| 7 | Gaby Keylin | — | CAPU | 1:39.91 | — | — |