| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Moy, Aiden C (8)
|
MREAST |
41.84 |
39.63 |
-2.21 |
| 2 |
Mora-Castillo, Sebastian (8)
|
MRBGNW |
51.44 |
44.10 |
-7.34 |
| 3 |
Pearsall, Milo J (8)
|
MRPATS |
44.15 |
44.28 |
0.13 |
| 4 |
Stonsby, Peter S (8)
|
MRBGNW |
47.68 |
44.55 |
-3.13 |
| 5 |
Zulauf, Lee L (8)
|
MRYFD |
49.16 |
44.71 |
-4.45 |
| 6 |
Brown, Thomas J (8)
|
MRSMC |
47.27 |
45.41 |
-1.86 |
| 7 |
Park, Aaron T (8)
|
MRCAS |
45.14 |
45.43 |
0.29 |
| 8 |
Del Rosario, Edmund Jacob C (8)
|
MRPATS |
|
47.70 |
- |
| 9 |
Edell, Truman E (8)
|
MRYFD |
48.94 |
48.19 |
-0.75 |
| 10 |
DuTremble, James P (8)
|
MREAST |
56.71 |
51.12 |
-5.59 |
| 11 |
Ahn, Ryan (8)
|
MRYMID |
|
52.27 |
- |
| 12 |
Shah, Dylan R (8)
|
MRYFD |
50.68 |
53.63 |
2.95 |
| 13 |
Fahey, Matthew X (8)
|
MRYMID |
|
53.71 |
- |
| 14 |
Cerone, Joseph (8)
|
MRSMC |
1:03.66 |
55.10 |
-8.56 |
| 15 |
Lio, Fenton (8)
|
MRSMC |
1:05.14 |
1:05.07 |
-0.07 |
| 16 |
Soboroff, Jaron F (8)
|
MREAST |
1:16.27 |
1:17.40 |
1.13 |
|
Wood, Hadden H (8)
|
CTGRYM |
55.00 |
DQ |
- |
|
Sandhu, Mateo S (8)
|
CTGRYM |
55.00 |
DQ |
- |
|
Johnston, Kai A (8)
|
MREAST |
1:18.23 |
DQ |
- |