| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Rachael, Everett W (10)
|
MAEAC |
40.53 |
41.18 |
0.65 |
| 1 |
Houck, Nicholas M (10)
|
MAEAC |
44.39 |
44.35 |
-0.04 |
| 1 |
Rucker, William A (9)
|
MASCAY |
47.51 |
46.02 |
-1.49 |
| 2 |
Grosse, Keegan (10)
|
MAPENN |
45.29 |
46.07 |
0.78 |
| 2 |
Ketchum, Jack B (9)
|
MAEAC |
|
47.44 |
- |
| 3 |
Zhou, Ethan (10)
|
MAMSA |
51.81 |
47.73 |
-4.08 |
| 4 |
Conway, Logan R (9)
|
MAEAC |
|
47.79 |
- |
| 5 |
Faulkingham, Jacob T (10)
|
MAMSA |
48.78 |
49.05 |
0.27 |
| 6 |
Yan, Ivan N (9)
|
MAMSA |
58.47 |
55.31 |
-3.16 |
| 7 |
Eusemann, Owen J (10)
|
MAMSA |
1:06.77 |
55.57 |
-11.20 |
| 8 |
Gonzalez, Nathaniel L (9)
|
MAPENN |
|
56.56 |
- |
| 9 |
LaFrazza-Schwartz, Vincent A (10)
|
MANLAC |
|
58.71 |
- |
| 10 |
Oswald, Benjamin E (10)
|
MAMSA |
56.88 |
1:01.57 |
4.69 |
| 11 |
Mital, Kusshagra (9)
|
MAMSA |
1:08.20 |
1:06.74 |
-1.46 |
| 12 |
Gonzalez, Alejandro D (9)
|
MAPENN |
1:02.65 |
1:10.62 |
7.97 |
| 13 |
Berezin, Stefan I (10)
|
MASCAY |
1:30.38 |
1:13.33 |
-17.05 |
|
Sao, Shreyas (10)
|
MAMSA |
|
DQ |
- |
|
Saverino, Travis V (9)
|
MAMSA |
|
DQ |
- |
|
Butakis, Carter T (9)
|
MAMSA |
|
NS |
- |