| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Chau, Calvin W (16)
|
MRCIY |
26.81 |
27.14 |
0.33 |
| 2 |
Dwyer, Daniel P (16)
|
MRCIY |
29.04 |
27.67 |
-1.37 |
| 3 |
O'Sullivan, Kealan J (15)
|
MRCIY |
30.41 |
28.14 |
-2.27 |
| 4 |
Coronado, Justin O (17)
|
MRCIY |
28.17 |
29.81 |
1.64 |
| 5 |
Lang, Justin Z (17)
|
MRFLY |
|
30.06 |
- |
| 6 |
Valdivia, Leonardo A (17)
|
MRFLY |
32.43 |
33.07 |
0.64 |
| 7 |
Ou, Toby Y (16)
|
MRFLY |
|
33.28 |
- |
| 8 |
Lim, Daniel (15)
|
MRFLY |
35.79 |
34.71 |
-1.08 |
| 9 |
Qian, Ryan E (15)
|
MRCIY |
48.05 |
36.33 |
-11.72 |
| 10 |
Dwyer, Sam M (12)
|
MRCIY |
35.23 |
38.06 |
2.83 |
|
Carrington, Zechariah K (15)
|
MRCIY |
41.74 |
NS |
- |
|
Cordova, Christian M (16)
|
MRCIY |
25.58 |
NS |
- |
|
Lim, James (15)
|
MRFLY |
30.17 |
NS |
- |
|
Lin, Jordan (17)
|
MRFLY |
30.92 |
NS |
- |