| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Paggi, Zachary A (10)
|
MRLBA |
33.81 |
34.07 |
0.26 |
| 2 |
O'Shea, Aiden P (10)
|
MRLBA |
40.48 |
39.93 |
-0.55 |
| 3 |
Madison, Jack W (9)
|
MRWISC |
42.58 |
40.20 |
-2.38 |
| 4 |
Lavelle, Adam (10)
|
MRWISC |
42.59 |
40.41 |
-2.18 |
| 5 |
Deangelis, Nicholas A (9)
|
MRLBA |
41.07 |
42.31 |
1.24 |
| 6 |
Saffer, Mitchell S (10)
|
MRTS |
53.47 |
45.26 |
-8.21 |
| 7 |
Gallegos, Alec J (9)
|
MRTS |
52.60 |
46.60 |
-6.00 |
| 8 |
Shea, Hayden A (10)
|
MRSSC |
51.63 |
50.16 |
-1.47 |
| 9 |
Zhu, Ethan L (10)
|
MRLIE |
|
53.14 |
- |
| 10 |
Vescovo III, Peter S (10)
|
MRSSC |
53.30 |
53.59 |
0.29 |
| 11 |
Qureshi, Adam (9)
|
MRSSC |
1:02.85 |
58.29 |
-4.56 |
| 12 |
Morley, Alexander W (9)
|
MRSSC |
1:12.20 |
1:06.45 |
-5.75 |
|
Walsh, Harry R (9)
|
MRLBA |
|
DQ |
- |
|
Riva, Luca A (10)
|
MRSSC |
1:00.00 |
DQ |
- |
|
White, Denver M (9)
|
MRWISC |
1:10.99 |
NS |
- |