| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Crossing, Alex (14)
|
NIVICT |
59.35 |
59.94 |
0.59 |
| 2 |
Hewett, Ian R (14)
|
NISTAR |
58.56 |
1:00.02 |
1.46 |
| 3 |
Wilson, Christian (14)
|
NITWST |
59.04 |
1:00.17 |
1.13 |
| 4 |
Gasiewicz, Aaron C (13)
|
NICLSC |
1:00.31 |
1:00.74 |
0.43 |
| 5 |
Kemp, Evan C (14)
|
AMUN-P |
1:01.26 |
1:01.29 |
0.03 |
| 6 |
Strittmatter, Jude A (13)
|
NISTAR |
1:01.45 |
1:01.63 |
0.18 |
| 7 |
Wong, Nicholas (14)
|
NICLSC |
1:06.71 |
1:06.25 |
-0.46 |
| 8 |
Scalfani-Cohen, Andrew J (14)
|
NIVELO |
1:07.33 |
1:08.76 |
1.43 |
| 9 |
Mintz, Dominic S (14)
|
NICLSC |
1:22.97 |
1:11.60 |
-11.37 |
| 10 |
Attuwaybi, Ismail B (14)
|
NIVELO |
1:13.74 |
1:13.34 |
-0.40 |
| 11 |
Betterelli, Tristan J (14)
|
NIVELO |
1:19.85 |
1:14.30 |
-5.55 |
| 12 |
O'Beirne, Brendan A (13)
|
NISTAR |
1:19.55 |
1:15.22 |
-4.33 |
| 13 |
Noecker, Eli M (13)
|
NITWST |
1:18.03 |
1:19.80 |
1.77 |
| 14 |
Currier, Mason L (13)
|
AMPWRS |
|
1:30.91 |
- |
| 15 |
Domster, Aidan M (13)
|
NISTAR |
1:28.25 |
1:31.21 |
2.96 |
|
Vogt, Aidan C (14)
|
NISTAR |
|
DQ |
- |
|
Griffin, Gavin Q (13)
|
NIVELO |
1:49.38 |
DQ |
- |