| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Mazzacano, Andrew J (17)
|
MREAST |
52.57 |
56.88 |
4.31 |
| 2 |
Rutishauser, Wyatt W (16)
|
MREAST |
58.16 |
57.41 |
-0.75 |
| 3 |
Rutishauser, Weston M (14)
|
MREAST |
1:02.95 |
1:04.41 |
1.46 |
| 4 |
Isak, Ethan C (13)
|
MREAST |
1:09.57 |
1:06.37 |
-3.20 |
| 5 |
Barron, Michael L (15)
|
MREAST |
1:10.16 |
1:07.05 |
-3.11 |
| 6 |
Mora-Castillo, Sebastian (14)
|
MREAST |
1:10.42 |
1:08.97 |
-1.45 |
| 7 |
Langerfeld, Robert T (14)
|
MREAST |
1:09.84 |
1:10.17 |
0.33 |
| 8 |
Tuchman, Dylan J (14)
|
MREAST |
1:12.35 |
1:13.81 |
1.46 |
| 9 |
Boyer, Jackson X (13)
|
MREAST |
1:12.85 |
1:14.30 |
1.45 |
| 10 |
Brenner, Noah S (13)
|
MREAST |
1:19.62 |
1:17.15 |
-2.47 |
| 11 |
Driver, Steven J (14)
|
MREAST |
1:21.76 |
1:21.45 |
-0.31 |
|
Ntrivalas, Ian E (14)
|
MREAST |
1:10.88 |
NS |
- |
|
Pierce, Brice J (17)
|
MREAST |
|
NS |
- |