| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Bass, Alistair J (9)
|
FGSFTL |
1:35.20 |
1:29.69 |
-5.51 |
| 2 |
Persten, Ethan X (10)
|
FGCSSC |
1:34.80 |
1:30.99 |
-3.81 |
| 3 |
Albornoz, John (9)
|
FGCSSC |
1:33.57 |
1:32.26 |
-1.31 |
| 4 |
Spiller, Jonah D (9)
|
FGHAT |
1:31.98 |
1:32.84 |
0.86 |
| 5 |
Rodriguez, Christian A (9)
|
FGSUN |
1:41.03 |
1:33.86 |
-7.17 |
| 6 |
Goodson, Jacob R (10)
|
FGSF |
1:59.09 |
1:35.61 |
-23.48 |
| 7 |
Usilton, Jack G (10)
|
FGHAFL |
|
1:38.34 |
- |
| 8 |
Mitov, Alexander V (9)
|
FGTSA |
|
1:40.46 |
- |
| 9 |
Nichols, Christian (10)
|
FGUN-T |
1:44.77 |
1:42.18 |
-2.59 |
| 10 |
Frolov, Arseniy (9)
|
FGPST |
|
1:43.38 |
- |
| 11 |
Corrales, Francesco (9)
|
FGSFTL |
|
1:43.47 |
- |
| 12 |
Christensen, Preston R (9)
|
FGSOFL |
|
1:43.97 |
- |
| 13 |
Schultz, Zachary D (10)
|
FGSUN |
1:48.52 |
1:44.98 |
-3.54 |
| 14 |
Bagnuoli, Lorenzo (9)
|
FGSOFL |
|
1:46.43 |
- |
| 15 |
Suarez Bueno, Matteo (10)
|
FGCSSC |
|
1:50.24 |
- |
| 16 |
Boodooram, Austin A (10)
|
FGSFTL |
1:52.25 |
1:52.67 |
0.42 |
| 17 |
Sarabia, Antonio R (9)
|
FGHAFL |
|
2:04.48 |
- |
|
Altamura, Aldo G (10)
|
FGPST |
|
DQ |
- |
|
Paruchuru, Sridhyan (10)
|
FGCSSC |
|
DQ |
- |
|
Montiel Cardoso, Tiago (10)
|
FGCSSC |
|
DQ |
- |
|
Goncharov, Stefan (9)
|
FGSFTL |
1:31.21 |
NS |
- |
|
DeSouza, Joshua (9)
|
FGCSSC |
1:48.33 |
NS |
- |
|
Forgione, Luigi (10)
|
FGAZFL |
1:49.05 |
NS |
- |