| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Brennan, Joseph V (16)
|
MRCIY |
49.34 |
51.84 |
2.50 |
| 2 |
Duryea, Jack R (16)
|
MREHY |
52.32 |
53.52 |
1.20 |
| 3 |
Tamang, Tenzin N (14)
|
MREHY |
55.42 |
55.79 |
0.37 |
| 4 |
Coronado, Justin O (15)
|
MRCIY |
56.95 |
56.34 |
-0.61 |
| 5 |
Whelan, Jack (17)
|
MRCIY |
54.22 |
56.84 |
2.62 |
| 6 |
O'Donnell, Curran (14)
|
MREHY |
58.68 |
57.41 |
-1.27 |
| 7 |
Cordova, Christian M (14)
|
MRCIY |
57.16 |
58.41 |
1.25 |
| 8 |
Natapraya, Kyle (15)
|
MRCIY |
59.75 |
58.59 |
-1.16 |
| 9 |
Piver, Daniel (15)
|
MREHY |
59.61 |
1:00.83 |
1.22 |
| 10 |
Robins, Owen E (13)
|
MREHY |
1:11.28 |
1:05.66 |
-5.62 |
| 11 |
Wood, Frey D (14)
|
MREHY |
|
1:09.70 |
- |
| 12 |
Qian, Ryan E (13)
|
MRCIY |
1:19.12 |
1:10.38 |
-8.74 |
| 13 |
Nwosu, Tobenna D (10)
|
MRCIY |
1:16.81 |
1:13.60 |
-3.21 |
| 14 |
Dwyer, Sam M (10)
|
MRCIY |
1:14.43 |
1:17.09 |
2.66 |
| 15 |
Coleman, Brayden E (10)
|
MRCIY |
1:25.60 |
1:23.42 |
-2.18 |
| 16 |
Argyris, Konstantinos A (9)
|
MRCIY |
|
1:38.50 |
- |
|
Harrison, Colin P (16)
|
MREHY |
50.59 |
DQ |
- |
|
Cohill, Thomas W (43)
|
MREHY |
59.03 |
NS |
- |
|
Stefanidis, Nicholas (16)
|
MRCIY |
49.64 |
NS |
- |