| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Ruhl, Jonah W (11)
|
NTATAC |
1:11.63 |
1:09.72 |
-1.91 |
| 2 |
Chu, Paul N (12)
|
NTCOPS |
1:11.13 |
1:10.09 |
-1.04 |
| 3 |
Roman-Bocanegra, Carlos R (11)
|
NTCOPS |
1:31.98 |
1:21.66 |
-10.32 |
| 4 |
Giles, Liam N (12)
|
NTCOPS |
1:20.56 |
1:22.20 |
1.64 |
| 5 |
Potter, Daniel V (12)
|
NTCOPS |
1:25.29 |
1:23.23 |
-2.06 |
| 6 |
Tobin, Michael I (12)
|
NTATAC |
1:19.65 |
1:24.29 |
4.64 |
| 7 |
Jadhav, Ranveer K (12)
|
NTCOPS |
|
1:29.15 |
- |
| 8 |
Trayer, Connor D (11)
|
NTCOPS |
1:34.24 |
1:29.30 |
-4.94 |
| 9 |
Kanev, Kristian (11)
|
NTCOPS |
1:31.23 |
1:31.93 |
0.70 |
| 10 |
Gandhi, Xerxes (12)
|
NTCOPS |
1:42.16 |
1:39.05 |
-3.11 |
|
Zaballa, Sebastian T (11)
|
NTCOPS |
|
DQ |
- |