| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Smith, Ryan T (17)
|
MAUNAT |
51.71 |
53.97 |
2.26 |
| 2 |
Koenig, Pierre J (13)
|
MASSC |
52.10 |
55.27 |
3.17 |
| 3 |
Sumner, Zachary J (14)
|
MASSC |
58.73 |
56.38 |
-2.35 |
| 4 |
Hughes, Jack R (14)
|
MASSC |
55.23 |
56.82 |
1.59 |
| 5 |
Kantner, Andrew M (14)
|
MASSC |
58.90 |
56.95 |
-1.95 |
| 6 |
Fechtman Jr., David P (13)
|
MAUNAT |
57.94 |
57.06 |
-0.88 |
| 7 |
Whitaker, Miles T (14)
|
MASSC |
57.25 |
58.54 |
1.29 |
| 8 |
Smirnov, Alexander (14)
|
MASSC |
59.03 |
1:00.95 |
1.92 |
| 9 |
Dietrick, Matthew J (14)
|
MASSC |
1:05.71 |
1:03.21 |
-2.50 |
| 10 |
Rainey, Evan J (15)
|
MASSC |
1:09.74 |
1:03.60 |
-6.14 |
| 11 |
Nangle, John (13)
|
MASSC |
1:06.62 |
1:05.32 |
-1.30 |
| 12 |
Marlowe, Maximus E (15)
|
MASSC |
1:06.29 |
1:06.35 |
0.06 |
| 13 |
Johnson, Wyatt C (13)
|
MASSC |
1:08.84 |
1:08.73 |
-0.11 |
| 14 |
Rahardjo, Alfonsus B (13)
|
MASSC |
|
1:18.13 |
- |
|
Mastrangelo, Brett M (17)
|
MASSC |
51.12 |
NS |
- |
|
ElDeiry, James M (15)
|
MASSC |
58.94 |
NS |
- |
|
Chen, Chase C (17)
|
MASSC |
49.35 |
NS |
- |