| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Brosnihan, Thomas A (15)
|
ADUSAM |
50.45 |
51.41 |
0.96 |
| 2 |
Brown, Zachary T (16)
|
ADGLFY |
53.12 |
53.14 |
0.02 |
| 3 |
House, Gabe G (15)
|
ADUN |
51.35 |
53.76 |
2.41 |
| 4 |
Wilkinson, Ryan J (15)
|
ADGLFY |
53.48 |
54.94 |
1.46 |
| 5 |
Adamo, Joseph J (16)
|
ADUSAM |
53.84 |
55.98 |
2.14 |
| 6 |
Moeini Feizabadi, Mazeyar (17)
|
NESNAP |
56.05 |
56.10 |
0.05 |
| 7 |
Miller, Shane C (16)
|
ADUN |
55.42 |
57.89 |
2.47 |
| 8 |
Waldenmaier, Alexander Z (16)
|
ADGUY |
59.69 |
59.95 |
0.26 |
| 9 |
Greene, Daniel J (17)
|
ADUSAM |
59.43 |
1:00.30 |
0.87 |
| 10 |
Beaulieu-Shaffer, Aryell T (16)
|
NESNAP |
1:01.88 |
1:02.19 |
0.31 |
| 11 |
Faroni, Brett A (15)
|
ADCLIN |
1:05.28 |
1:03.66 |
-1.62 |
| 12 |
Parrilla Salgado, Jose J (15)
|
ADCLIN |
1:14.18 |
1:08.05 |
-6.13 |
| 13 |
Hughes, Conor P (15)
|
ADUSAM |
1:03.52 |
1:09.03 |
5.51 |
| 14 |
Ahuja, Ishan R (15)
|
ADKCC |
1:22.68 |
1:24.55 |
1.87 |
|
Cartwright, Brendan J (17)
|
ADDELM |
48.50 |
NS |
- |
|
Sharpe, Matthew D (15)
|
ADSARY |
1:01.17 |
NS |
- |