| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Giunta, Noah L (17)
|
MRTVSC |
52.24 |
56.30 |
4.06 |
| 2 |
Brady, Timothy M (16)
|
MRTVSC |
56.22 |
57.97 |
1.75 |
| 3 |
Placencia-Nazareno, Ethan N (15)
|
MRTVSC |
57.70 |
1:00.05 |
2.35 |
| 4 |
Leroy, Max (15)
|
MRHYB |
58.05 |
1:00.80 |
2.75 |
| 5 |
Klaric, Zander W (17)
|
MRTVSC |
59.69 |
1:01.13 |
1.44 |
| 6 |
Field, Jacob B (15)
|
MRTVSC |
1:02.76 |
1:01.70 |
-1.06 |
| 7 |
Andersen, Francis C (17)
|
MRTVSC |
59.47 |
1:01.72 |
2.25 |
| 8 |
Boudreau, Sergei J (15)
|
MRTVSC |
1:01.95 |
1:02.46 |
0.51 |
| 9 |
Lambros Jr., Stephen * (16)
|
MRIA |
1:01.86 |
1:02.94 |
1.08 |
| 10 |
Casalinuovo, Johnny A (15)
|
MRTVSC |
59.87 |
1:03.04 |
3.17 |
| 11 |
Smith, Edwin J (17)
|
MRIA |
1:03.26 |
1:03.39 |
0.13 |
| 12 |
Springle, Ethan S (16)
|
MRSSC |
1:07.45 |
1:05.31 |
-2.14 |
| 13 |
Spagnoletti, Lucas (16)
|
MRHYB |
1:01.75 |
1:05.47 |
3.72 |
| 14 |
Renda, Ronald M (15)
|
MRFA |
|
1:08.24 |
- |
| 15 |
DeRosalia, Nicholas D (16)
|
MRSSC |
1:08.50 |
1:09.04 |
0.54 |
| 16 |
Viollis, Logan (15)
|
MRSSC |
1:08.75 |
1:09.80 |
1.05 |
| 17 |
Timm, Ethan G (16)
|
MRTVSC |
1:33.22 |
1:12.39 |
-20.83 |
| 18 |
Dixon, Brett T (15)
|
MRTVSC |
1:15.00 |
1:23.70 |
8.70 |
|
Doherty, Liam D (15)
|
MRFA |
|
DQ |
- |
|
Chagas, Davi S (15)
|
MRSSC |
1:19.09 |
NS |
- |
|
Vinciguerra, Vincent X (16)
|
MRTVSC |
57.61 |
NS |
- |