| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Kolonko, Macauley J (17)
|
NIAYST |
54.01 |
58.35 |
4.34 |
| 2 |
Bernhardt, Hunter M (18)
|
NICORY |
1:00.81 |
1:03.43 |
2.62 |
| 3 |
Jones, Lucas H (17)
|
NWYS |
1:05.01 |
1:04.93 |
-0.08 |
| 4 |
Harrington, Colin J (16)
|
NICORY |
1:03.80 |
1:07.54 |
3.74 |
| 5 |
Leone, Giovanni (16)
|
SEYS |
1:10.76 |
1:09.18 |
-1.58 |
| 6 |
Heim, Ethan (17)
|
LOCK |
1:16.05 |
1:10.01 |
-6.04 |
| 7 |
Pawlak, Brennan (16)
|
BAYT |
1:11.18 |
1:11.23 |
0.05 |
| 8 |
Tyler, Chase R (17)
|
NWYS |
1:14.58 |
1:14.16 |
-0.42 |
| 9 |
Ramesh, Achutha (16)
|
SEYS |
1:13.07 |
1:14.63 |
1.56 |
| 10 |
Cruz-Figueroa, Eduardo (15)
|
ADSSCY |
|
1:16.05 |
- |
|
Mudumba, Srinivasa (16)
|
SEYS |
1:14.30 |
NS |
- |