| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Henry, Noah W (17)
|
STTST |
|
1:38.21 |
- |
| 2 |
Clasen, Garrett D (17)
|
ILWCS |
|
1:39.39 |
- |
| 3 |
Moranetz, Jack T (17)
|
COFST |
|
1:41.95 |
- |
| 4 |
Velasquez, Niccolo A (15)
|
STASC |
|
1:42.19 |
- |
| 5 |
Luo, Jaden J (14)
|
STASC |
|
1:42.44 |
- |
| 6 |
Holbrook, Aidan Z (18)
|
MVKCB |
|
1:42.93 |
- |
| 7 |
Shenkin, Zachary A (18)
|
CANOVA |
|
1:43.07 |
- |
| 8 |
Yue, Brandon W (17)
|
PNIST |
|
1:43.58 |
- |
| 9 |
Lu, Jason F (17)
|
CAPVST |
|
1:43.61 |
- |
| 10 |
Milovanovic, Mateja (15)
|
AZPSC |
|
1:43.62 |
- |
| 11 |
Nolan, Parker T (14)
|
ILCWAC |
|
1:44.08 |
- |
| 12 |
Toledo Sanchez, Dominic A (16)
|
STNTRO |
|
1:44.47 |
- |
| 13 |
Webb, Charles J (16)
|
MNEDI |
|
1:44.75 |
- |
| 13 |
Cho, Joshua J (15)
|
CANOVA |
|
1:44.75 |
- |
| 15 |
Bening, Jacob D (16)
|
OZRCA |
|
1:46.41 |
- |
| 16 |
Seabaugh, Daniel D (15)
|
OZRCA |
|
1:47.74 |
- |
|
Green, Cameron R (15)
|
UTUVRA |
|
DQ |
- |