| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Budke, Vincent C (15)
|
MRSSC |
56.71 |
57.69 |
0.98 |
| 2 |
Beutel, Brendan M (15)
|
MRSSC |
59.10 |
59.01 |
-0.09 |
| 3 |
Fisher, Alexander (16)
|
MRHAA |
58.53 |
1:01.23 |
2.70 |
| 4 |
Hawkesworth, Cameron D (17)
|
MRSSC |
58.39 |
1:02.09 |
3.70 |
| 5 |
Penny, Jeremy S (17)
|
MRLIE |
1:01.88 |
1:02.47 |
0.59 |
| 6 |
Stone, Emmet R (17)
|
MRSSC |
1:10.00 |
1:04.18 |
-5.82 |
| 7 |
Biersach, Brett A (17)
|
MRSSC |
1:05.13 |
1:04.41 |
-0.72 |
| 8 |
Young, Allen W (17)
|
MRSSC |
1:06.91 |
1:05.07 |
-1.84 |
| 9 |
Claps, Danny (15)
|
MRHAA |
1:07.98 |
1:06.12 |
-1.86 |
| 10 |
Mcmenamy, Aidan (15)
|
MRHAA |
1:12.40 |
1:08.95 |
-3.45 |
| 11 |
Young, Austin W (15)
|
MRSSC |
1:11.90 |
1:12.74 |
0.84 |
| 12 |
Furci, Jack (15)
|
MRSSC |
1:10.76 |
1:12.94 |
2.18 |
| 13 |
DeBoer, Bradley D (15)
|
MRSSC |
1:13.99 |
1:15.51 |
1.52 |
| 14 |
Dunn, Christopher J (15)
|
MRSSC |
1:11.41 |
1:15.92 |
4.51 |
| 15 |
Arcidiacono, Michael T (15)
|
MRSSC |
1:35.00 |
1:20.14 |
-14.86 |
| 16 |
Tom, Samuel (18)
|
MRSSC |
1:29.60 |
1:24.00 |
-5.60 |
| 17 |
McCarthy, Jack T (13)
|
MRLIE |
1:41.37 |
1:27.96 |
-13.41 |
| 18 |
Beausoleil, Wesly (15)
|
MRSSC |
1:30.16 |
1:30.59 |
0.43 |