| Place | Swimmer | Age | Club | Time | Std | Power pts |
|---|---|---|---|---|---|---|
| 1 | Jackson Grafilo | 16 | WSMR | 54.24 | A | 638 |
| 2 | Jose Garcia-Osorio | 18 | ELCM | 56.53 | — | 540 |
| — | Milan Dizitser | — | HILS | 1:02.30 | — | — |
| 1 | Makena Truong | 15 | HILS | 1:02.60 | A | 568 |
| 2 | Kamryn Stevenson | 15 | PCPPSC | 1:03.32 | A | 549 |
| 3 | Baker Book | 17 | HMBA | 1:03.97 | — | 375 |
| 4 | Braiden Sommerfeld | — | HILS | 1:05.05 | — | — |
| 5 | Jerrick Sunga | 15 | ELCM | 1:05.06 | B | 398 |
| 7 | Jonathan Martins-Rettes | 16 | TENO | 1:05.56 | B | 361 |
| 3 | Caitlyn SO | 15 | ELCM | 1:05.58 | BB | 494 |
| 4 | Louisa Kearns | 16 | HMBA | 1:05.64 | — | 482 |
| 5 | Zoe Chait | 17 | HMBA | 1:09.06 | — | — |
| 8 | Tyler Paing | 18 | OCEA | 1:10.23 | — | 282 |
| 6 | Taylor Lam | 15 | WSMR | 1:10.72 | B | 394 |
| 7 | Sadie Wong | 16 | HILS | 1:11.56 | — | 372 |
| 9 | Liam McCarroll | 18 | OCEA | 1:11.63 | — | — |
| 8 | Charis Taner | 15 | HMBA | 1:12.61 | B | 364 |
| 9 | Ashley Cai | 16 | OCEA | 1:24.41 | — | 226 |
| — | JB Ferreira | 17 | CAPU | 1:26.51 | — | — |
| 10 | Rayna Quintana | 14 | CAPU | 1:32.42 | — | 183 |
| — | Arianna Moreno | 17 | CAPU | 1:34.66 | — | — |
| 11 | Sophia Ramirez | 17 | CAPU | 1:41.23 | — | — |