| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Tong, Yuan L (12)
|
ADSCHE |
32.71 |
31.53 |
-1.18 |
| 2 |
Wang, Samuel C (12)
|
ADSCHE |
33.68 |
33.39 |
-0.29 |
| 3 |
Carignan, Nicholas A (12)
|
ADSARY |
40.39 |
36.50 |
-3.89 |
| 4 |
Lohse, Magnus (11)
|
ADSARY |
36.40 |
36.81 |
0.41 |
| 5 |
Banaszewski, Calvin M (12)
|
ADSCHE |
37.95 |
38.12 |
0.17 |
| 6 |
Wolk, Caison M (11)
|
ADUSAM |
38.67 |
39.12 |
0.45 |
| 7 |
Nikodem, Carter J (11)
|
ADSCHE |
40.77 |
39.69 |
-1.08 |
| 8 |
Hastings, Charley D (12)
|
ADSCHE |
41.46 |
41.84 |
0.38 |
| 9 |
Dashiell, Michael W (11)
|
ADSCHE |
41.98 |
41.98 |
0.00 |
| 10 |
Daly, Ryan W (11)
|
ADSCHE |
42.76 |
43.70 |
0.94 |
| 11 |
Wilford, Juneau A (12)
|
ADSCHE |
49.13 |
45.37 |
-3.76 |
| 12 |
Kardos, Henrik I (12)
|
ADSCHE |
47.69 |
47.39 |
-0.30 |
| 13 |
Barnoski, William C (11)
|
ADSCHE |
51.43 |
50.14 |
-1.29 |
| 14 |
Titov-Chiaravalle, Asher G (11)
|
ADSCHE |
48.28 |
51.98 |
3.70 |
| 15 |
Pecunia, Clayton J (11)
|
ADSARY |
55.41 |
53.27 |
-2.14 |
| 16 |
Mazurowski, Emmett K (11)
|
ADSCHE |
52.68 |
55.64 |
2.96 |
| 17 |
Trujillo, Lucas (11)
|
ADSCHE |
55.99 |
1:01.71 |
5.72 |
| 18 |
Mainoo, Jacob O (11)
|
ADSCHE |
|
1:08.92 |
- |
|
Russell, Ryan H (11)
|
ADSCHE |
|
DQ |
- |
|
Andreini, Finn M (12)
|
ADSCHE |
46.11 |
DQ |
- |
|
Tuohy, Miles J (11)
|
ADSCHE |
|
DQ |
- |
|
Crowley, Mason C (12)
|
ADTAC |
34.39 |
NS |
- |
|
Young, Liam D (12)
|
ADTAC |
36.98 |
NS |
- |
|
Van Wie, Cody M (11)
|
ADCANA |
|
NS |
- |