| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Yue, Evan Z (8)
|
PVNCAP |
39.18 |
37.42 |
-1.76 |
| 2 |
Walton, River T (8)
|
PVDCPR |
45.94 |
44.94 |
-1.00 |
| 3 |
Yin, William (7)
|
PVSA |
48.41 |
46.36 |
-2.05 |
| 4 |
O'Brien, Andrew (7)
|
PVWEA |
47.74 |
48.30 |
0.56 |
| 5 |
Chi, Colm Y (7)
|
PVNCAP |
51.52 |
48.90 |
-2.62 |
| 6 |
Shepherd, Micah (8)
|
PVWEA |
53.53 |
50.45 |
-3.08 |
| 7 |
Zhelyazkov, Daniel D (8)
|
PVTIBU |
49.75 |
52.40 |
2.65 |
| 8 |
Esguerra, Francis Joshua M (8)
|
PVTIBU |
44.83 |
53.59 |
8.76 |
| 9 |
Bembridge, Benjamin A (8)
|
PVPAC |
1:01.31 |
53.85 |
-7.46 |
| 10 |
Hawkins, Tristan K (8)
|
PVSA |
56.64 |
58.77 |
2.13 |
|
Maness, Finn M (8)
|
PVNCAP |
44.44 |
NS |
- |
|
Geraghty, Jackson (8)
|
PVYSS |
48.64 |
NS |
- |
|
Francis, Jackson (7)
|
PVSA |
47.63 |
NS |
- |