| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Johnson, Josh A (16)
|
MRMWDA |
55.39 |
55.16 |
-0.23 |
| 2 |
Fernandez, Eliseo D (16)
|
MRMHHW |
58.06 |
58.76 |
0.70 |
| 3 |
Baxter, Ayden C (17)
|
MRMWDA |
58.58 |
1:00.37 |
1.79 |
| 4 |
Insdorf, Joshua C (15)
|
MRMWDA |
58.75 |
1:01.33 |
2.58 |
| 5 |
Lam, Vernon J (15)
|
MRYBAR |
59.11 |
1:03.24 |
4.13 |
| 6 |
Espinoza-Soriano, Jorge (13)
|
MRMHHW |
1:04.09 |
1:05.70 |
1.61 |
| 7 |
Yastion, Adam E (16)
|
MRMWDA |
1:03.77 |
1:05.80 |
2.03 |
| 8 |
Croutch, Tyler D (13)
|
MRMWDA |
1:06.92 |
1:05.92 |
-1.00 |
| 9 |
LoPresti, Pietro R (14)
|
MRNBS |
1:13.16 |
1:08.75 |
-4.41 |
| 10 |
Felker, Christopher D (14)
|
MRMWDA |
1:11.29 |
1:08.81 |
-2.48 |
| 11 |
Constancio, Markus A (16)
|
MRNBS |
1:13.32 |
1:12.70 |
-0.62 |
| 12 |
Martinez, Diego (16)
|
MRMHHW |
1:24.60 |
1:27.13 |
2.53 |