| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Smith, Sean C (17)
|
NCTYDE |
49.82 |
49.99 |
0.17 |
| 2 |
McDonald, Logan J (16)
|
NCTYDE |
49.26 |
50.07 |
0.81 |
| 3 |
Whitworth, Nathan C (17)
|
NCTYDE |
48.69 |
51.02 |
2.33 |
| 4 |
Greene, Jonah R (16)
|
NCTYDE |
51.40 |
51.33 |
-0.07 |
| 5 |
Roten, Landon T (17)
|
NCTYDE |
49.17 |
51.98 |
2.81 |
| 6 |
Vye, Nicholas W (17)
|
NCTYDE |
49.87 |
52.33 |
2.46 |
| 7 |
Ponce-de-Leon, Peyton B (15)
|
NCTYDE |
|
54.51 |
- |
| 8 |
Miner, Jason N (15)
|
NCTYDE |
54.97 |
54.84 |
-0.13 |
| 9 |
Insixiengmay, Steven (16)
|
NCTYDE |
52.43 |
56.55 |
4.12 |
| 10 |
Farrell, Michael E (16)
|
NCTYDE |
56.05 |
56.58 |
0.53 |
| 11 |
Gaillard, Alston M (16)
|
NCTYDE |
1:01.06 |
59.47 |
-1.59 |
| 12 |
Lester, Jackson C (15)
|
NCTYDE |
1:06.64 |
1:00.55 |
-6.09 |
| 13 |
Hey, Drew A (16)
|
NCTYDE |
1:24.32 |
1:05.64 |
-18.68 |
| 14 |
Formaggioni, Bryson W (17)
|
NCTYDE |
|
1:12.58 |
- |