| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Li, Yaron (14)
|
PVRY |
47.25 |
48.32 |
1.07 |
| 2 |
Skwarek, David A (14)
|
PVPAC |
53.59 |
52.87 |
-0.72 |
| 3 |
Orrell, Evan A (16)
|
PVPAC |
53.57 |
54.14 |
0.57 |
| 4 |
Lansing, Gavin (14)
|
PVHEAL |
55.13 |
55.59 |
0.46 |
| 5 |
Smith, Marcos J (14)
|
PVERSC |
57.23 |
57.04 |
-0.19 |
| 6 |
Fetters, Simon L (13)
|
MDHFY |
1:02.17 |
57.73 |
-4.44 |
| 7 |
Pierce, Connor T (17)
|
PVRY |
54.45 |
59.09 |
4.64 |
| 8 |
Sheppard, Donovan L (17)
|
PVPAC |
58.46 |
59.81 |
1.35 |
| 9 |
Swift, Alex T (13)
|
MDHFY |
1:01.72 |
1:01.89 |
0.17 |
| 10 |
Guggenmos, Colin F (16)
|
PVRY |
1:14.91 |
1:02.39 |
-12.52 |
| 11 |
Stello, Hunter R (15)
|
PVPAC |
1:00.85 |
1:02.56 |
1.71 |
| 12 |
Winterstein, Victor H (16)
|
PVRY |
1:03.66 |
1:03.90 |
0.24 |
| 13 |
Ormerod, Maxwell T (13)
|
PVPAC |
1:03.07 |
1:05.31 |
2.24 |
| 14 |
Reeder, Thomas P (14)
|
MDHFY |
1:05.23 |
1:05.77 |
0.54 |
| 15 |
Shockley, Finneas S (14)
|
MDHFY |
1:09.60 |
1:08.89 |
-0.71 |
| 16 |
Okoya, Leroy (14)
|
MDHFY |
1:15.97 |
1:14.22 |
-1.75 |
| 17 |
Wedge, Simon E (14)
|
PVPAC |
|
1:16.45 |
- |
| 18 |
Rhoades, Cooper H (14)
|
PVPAC |
1:17.01 |
1:16.77 |
-0.24 |
|
Dethridge, Alexander A (13)
|
PVPAC |
1:31.91 |
DQ |
- |