| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Chau, Calvin W (16)
|
MRCIY |
22.50 |
23.12 |
0.62 |
| 2 |
Dwyer, Daniel P (16)
|
MRCIY |
23.66 |
24.29 |
0.63 |
| 3 |
Lang, Justin Z (17)
|
MRFLY |
23.83 |
24.55 |
0.72 |
| 4 |
O'Sullivan, Kealan J (15)
|
MRCIY |
24.12 |
24.60 |
0.48 |
| 5 |
Coronado, Justin O (17)
|
MRCIY |
25.30 |
25.13 |
-0.17 |
| 6 |
Valdivia, Leonardo A (17)
|
MRFLY |
25.96 |
25.79 |
-0.17 |
| 7 |
Ou, Toby Y (16)
|
MRFLY |
25.87 |
26.12 |
0.25 |
| 8 |
Lim, James (15)
|
MRFLY |
25.84 |
26.35 |
0.51 |
| 9 |
Qian, Ryan E (15)
|
MRCIY |
26.99 |
26.81 |
-0.18 |
| 10 |
Lim, Daniel (15)
|
MRFLY |
27.93 |
27.58 |
-0.35 |
| 11 |
Dwyer, Sam M (12)
|
MRCIY |
29.51 |
30.50 |
0.99 |
|
Carrington, Zechariah K (15)
|
MRCIY |
28.64 |
NS |
- |
|
Cordova, Christian M (16)
|
MRCIY |
24.56 |
NS |
- |
|
Lin, Jordan (17)
|
MRFLY |
26.17 |
NS |
- |