| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Westenfelder, Leo S (10)
|
MTMAC |
48.39 |
45.59 |
-2.80 |
| 2 |
O'Connor, Cavan S (10)
|
MTBOZ |
47.80 |
48.18 |
0.38 |
| 3 |
Woldtvedt, Seth D (10)
|
MTUN |
49.87 |
48.78 |
-1.09 |
| 4 |
Bartels, Luke N (10)
|
MTMYST |
50.11 |
51.49 |
1.38 |
| 5 |
Connors, Everson K (10)
|
MTHLST |
|
52.04 |
- |
| 6 |
Aguirre, Maximiliano (10)
|
MTBOZ |
54.03 |
52.36 |
-1.67 |
| 7 |
Brown, Kyler D (9)
|
SRMVM |
1:07.00 |
54.07 |
-12.93 |
| 8 |
Gould, Miller (9)
|
GLEN |
1:05.19 |
55.75 |
-9.44 |
| 9 |
Montgomery, Kaleb C (10)
|
MTBAC |
|
55.94 |
- |
| 10 |
Spoon, Daniel C (9)
|
MTMAC |
55.83 |
56.26 |
0.43 |
| 11 |
Grimes, Noah P (9)
|
SRVOLT |
1:00.65 |
56.32 |
-4.33 |
| 12 |
Barber, Max D (10)
|
MTMYST |
1:05.05 |
56.50 |
-8.55 |
| 13 |
Kovnesky, Nicolai H (9)
|
MTBOZ |
59.55 |
56.94 |
-2.61 |
| 14 |
Anderson, Christian R (10)
|
MTMAC |
|
57.20 |
- |
| 15 |
Bernhardt, Brayden T (9)
|
MTMAC |
|
58.47 |
- |
| 16 |
Skeans, Timothy (10)
|
GLEN |
58.20 |
58.90 |
0.70 |
| 17 |
Delhomme, Patrick J (9)
|
MTMYST |
|
1:01.07 |
- |
| 18 |
Schroeder, Duncan R (9)
|
MTUN |
|
1:01.40 |
- |
| 19 |
Lauer, Jona S (9)
|
MTMAC |
|
1:02.71 |
- |
| 20 |
Oberly, Henry D (9)
|
MTBOZ |
1:11.59 |
1:05.06 |
-6.53 |
| 21 |
St. Jeor, Franco C (9)
|
UTSLSL |
1:08.11 |
1:05.47 |
-2.64 |
| 22 |
Dustin, Zachary M (9)
|
SRVOLT |
|
1:06.77 |
- |
| 23 |
Brandmayr, Ross D (10)
|
MTBOZ |
1:08.14 |
1:10.04 |
1.90 |
| 24 |
Geddes, Cyrus P (10)
|
MTBOZ |
|
1:11.24 |
- |
| 25 |
Martin, Bryant M (10)
|
MTBAC |
|
1:18.36 |
- |
| 26 |
Shani, Eylon (9)
|
PNWAVE |
|
1:20.15 |
- |
| 27 |
Prudhomme, Jonathan M (10)
|
SRBY |
|
1:24.63 |
- |
| 28 |
MacLean, Coen C (10)
|
MTHLST |
|
1:29.02 |
- |
|
Dahood, Brett J (10)
|
MTBYSC |
|
DQ |
- |