| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
McDonald, Declan C (10)
|
MRBAD |
28.67 |
27.90 |
-0.77 |
| 2 |
Doyle, Owen R (10)
|
MRBGNW |
29.52 |
28.87 |
-0.65 |
| 3 |
Fogarty, Atticus I (10)
|
MRYFD |
28.69 |
29.04 |
0.35 |
| 4 |
Fratea, Dan (10)
|
MRMPNY |
28.77 |
29.12 |
0.35 |
| 5 |
Lee, Thirachon G (10)
|
MRLGAC |
30.06 |
29.54 |
-0.52 |
| 6 |
Stocks, Nicholas H (10)
|
MRBAD |
30.65 |
30.17 |
-0.48 |
| 7 |
Kim, Gianluca G (10)
|
MRPAC |
30.53 |
30.55 |
0.02 |
| 8 |
Cheaney, Sebastian B (10)
|
MRAGUA |
30.97 |
30.88 |
-0.09 |
| 9 |
Argeros, Alexander L (10)
|
MRYFD |
30.74 |
31.25 |
0.51 |
| 10 |
Vadapyanau, Roman (10)
|
MRTRI |
31.09 |
31.32 |
0.23 |