| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Bowen, Julian P (10)
|
MRLGAC |
1:23.32 |
1:19.50 |
-3.82 |
| 2 |
Bisono, Aaron L (10)
|
MRFLY |
1:19.57 |
1:20.16 |
0.59 |
| 3 |
Lee, Crane (10)
|
MRFLY |
1:20.99 |
1:20.95 |
-0.04 |
| 4 |
Dwyer, Sam M (10)
|
MRCIY |
1:26.25 |
1:26.39 |
0.14 |
| 5 |
Nwosu, Tobenna D (10)
|
MRCIY |
1:30.61 |
1:27.14 |
-3.47 |
| 6 |
Graham, Jasper A (10)
|
MRRED |
1:27.74 |
1:27.44 |
-0.30 |
| 7 |
Man, Daniel (10)
|
MRFLY |
1:26.79 |
1:28.26 |
1.47 |
| 8 |
Ratling, Phuntsok W (9)
|
MRLGAC |
1:27.08 |
1:28.76 |
1.68 |
| 9 |
Gan, Alan C (10)
|
MRFLY |
1:29.04 |
1:29.85 |
0.81 |
| 10 |
Bice, Cormick R (9)
|
MRCIY |
1:40.16 |
1:30.63 |
-9.53 |
| 11 |
Yacoob, Dylan A (9)
|
MRCIY |
1:28.64 |
1:30.86 |
2.22 |
| 12 |
Horiuchi, Carlos H (10)
|
MRLGAC |
|
1:32.68 |
- |
| 13 |
Coleman, Brayden E (10)
|
MRCIY |
1:40.13 |
1:32.92 |
-7.21 |
| 14 |
Kim, Kyle H (10)
|
MRCIY |
1:49.71 |
1:33.11 |
-16.60 |
| 15 |
Miranda, Ethan J (9)
|
MRFLY |
1:32.56 |
1:34.44 |
1.88 |
| 16 |
Pena, Jorge A (10)
|
MRRED |
1:35.21 |
1:34.51 |
-0.70 |
| 17 |
Zhu, Benjamin (10)
|
MRFLY |
1:33.08 |
1:35.66 |
2.58 |
| 18 |
Cross, John T (10)
|
MRCIY |
|
1:36.09 |
- |
| 19 |
Mendoza, Paolo Anton G (9)
|
MRFLY |
1:32.72 |
1:36.21 |
3.49 |
| 20 |
Lee, Thirachon G (8)
|
MRLGAC |
1:37.10 |
1:36.93 |
-0.17 |
| 21 |
Quach, Andrew (9)
|
MRFLY |
1:43.79 |
1:41.08 |
-2.71 |
| 22 |
Ortiz, Anthony (9)
|
MRRED |
1:37.27 |
1:42.51 |
5.24 |
| 23 |
Li, Kingston C (7)
|
MRFLY |
|
1:42.91 |
- |
| 24 |
Diamond, Tristan H (9)
|
MRFLY |
1:47.20 |
1:52.84 |
5.64 |
| 25 |
Cullinan, Seamus P (10)
|
MRCIY |
2:03.23 |
1:53.98 |
-9.25 |
| 26 |
Aouchiche, Adam S (8)
|
MRFLY |
1:50.52 |
1:56.50 |
5.98 |
| 27 |
Dansker, Tyler L (10)
|
MRCIY |
2:22.71 |
2:08.44 |
-14.27 |
| 28 |
Miranda, Evan B (7)
|
MRFLY |
2:25.98 |
2:17.09 |
-8.89 |
|
Cross, Robert J (9)
|
MRCIY |
|
DQ |
- |
|
Argyris, Konstantinos A (9)
|
MRCIY |
|
DQ |
- |
|
Bisono, Adam (7)
|
MRFLY |
2:01.77 |
DQ |
- |
|
Macom, Dilan J (9)
|
MRCIY |
|
DQ |
- |