| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Papsco, Zachary T (17)
|
MRHAA |
51.00 |
53.58 |
2.58 |
| 2 |
Casey, Jack H (17)
|
MRHAA |
52.24 |
55.59 |
3.35 |
| 3 |
Chang, Oscar (17)
|
MRHAA |
54.20 |
56.05 |
1.85 |
| 4 |
Macejko, Dylan M (16)
|
MRCSDC |
55.59 |
57.11 |
1.52 |
| 5 |
Markowitz, Hunter N (15)
|
MRHAA |
56.85 |
58.19 |
1.34 |
| 6 |
Beutel, Brendan M (17)
|
MRHAA |
55.76 |
58.37 |
2.61 |
| 7 |
Hawkins, Michael J (16)
|
MRHAA |
56.12 |
58.52 |
2.40 |
| 8 |
Kipshidze, George (15)
|
MRSSC |
55.77 |
58.71 |
2.94 |
| 9 |
Arnberg, Mason (16)
|
MRHAA |
55.77 |
59.16 |
3.39 |
| 10 |
Davis, Avery J (15)
|
MRSSC |
59.11 |
59.88 |
0.77 |
| 11 |
Hunt, Andrew (16)
|
MRHAA |
57.55 |
1:00.35 |
2.80 |
| 12 |
Dowd, Michael R (15)
|
MRCSDC |
1:02.55 |
1:02.12 |
-0.43 |
| 13 |
Karpf, Dylan (15)
|
MRHAA |
58.63 |
1:02.13 |
3.50 |
| 14 |
Lee, Joshua S (15)
|
MRBBSC |
1:04.86 |
1:02.32 |
-2.54 |
| 15 |
Byrne, Alex M (16)
|
MRBBSC |
59.20 |
1:02.55 |
3.35 |
| 16 |
Quiceno, Sebastian A (15)
|
MRSSC |
1:02.28 |
1:03.84 |
1.56 |
| 17 |
Oganesian, Mel (17)
|
MRBBSC |
1:03.53 |
1:04.33 |
0.80 |
| 18 |
Basini, Jacob (19)
|
MRHAA |
1:06.01 |
1:04.99 |
-1.02 |
| 19 |
Bach, Daniel (15)
|
MRCSDC |
1:04.75 |
1:05.58 |
0.83 |
| 20 |
Nielsen, Jordan (15)
|
MRHAA |
1:10.91 |
1:07.77 |
-3.14 |
| 21 |
Orehosky, Bailey T (16)
|
MRHAA |
1:04.66 |
1:08.66 |
4.00 |
| 22 |
Nigro, Christopher K (15)
|
MRCSDC |
1:07.15 |
1:09.29 |
2.14 |
| 23 |
Aird, James W (17)
|
MRFA |
1:06.46 |
1:09.38 |
2.92 |
| 24 |
Caillias, Sean R (17)
|
MRFA |
1:05.66 |
1:10.24 |
4.58 |
| 25 |
O'Brien, Justin W (16)
|
MRFA |
1:09.02 |
1:11.02 |
2.00 |
| 26 |
McNamara, William A (16)
|
MRBBSC |
1:28.46 |
1:11.11 |
-17.35 |
| 27 |
Scalia, Anthony D (11)
|
MRSSC |
1:15.16 |
1:12.35 |
-2.81 |
| 28 |
Tafe, John D (15)
|
MRCSDC |
1:27.33 |
1:26.41 |
-0.92 |
|
Combs, Sean A (16)
|
MRSSC |
1:09.30 |
DQ |
- |
|
Schroeder, Patrick J (17)
|
MRHAA |
1:20.00 |
NS |
- |