| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Coleman, Brian J (17)
|
NEYNS |
51.33 |
49.04 |
-2.29 |
| 2 |
Magnuson, Luke R (17)
|
NEYNS |
52.83 |
54.56 |
1.73 |
| 3 |
DaSilva-Grondin, Zachary T (14)
|
NEYNS |
58.40 |
58.18 |
-0.22 |
| 4 |
Kennedy, William T (13)
|
NEYNS |
59.65 |
1:01.04 |
1.39 |
| 5 |
Podstrelov, Gary A (14)
|
NEYNS |
1:02.56 |
1:02.25 |
-0.31 |
| 6 |
Coleman, Anna H (15)
|
NEYNS |
1:02.10 |
1:03.03 |
0.93 |
| 7 |
Bergquist, Finn N (13)
|
NEYNS |
1:05.54 |
1:03.19 |
-2.35 |
| 8 |
Athanas, William G (12)
|
NEYNS |
1:04.15 |
1:03.30 |
-0.85 |
| 9 |
Brown, Lucy R (14)
|
NEYNS |
1:06.90 |
1:04.88 |
-2.02 |
| 10 |
McCoy, Mia F (14)
|
NEYNS |
1:03.55 |
1:04.91 |
1.36 |
| 11 |
Robins, Clementine W (15)
|
NEYNS |
1:05.54 |
1:06.43 |
0.89 |
| 12 |
Hallowes, Madeleine C (14)
|
NEYNS |
1:12.04 |
1:07.62 |
-4.42 |
| 13 |
McKay, Caroline A (16)
|
NEYNS |
1:06.74 |
1:09.17 |
2.43 |
| 14 |
Lembo, Julia R (11)
|
NEYNS |
1:14.46 |
1:09.26 |
-5.20 |
| 15 |
Mulgrew, Porter E (11)
|
NEYNS |
1:16.58 |
1:11.18 |
-5.40 |
| 16 |
Blatchford, Caroline G (13)
|
NEYNS |
1:25.03 |
1:19.58 |
-5.45 |
|
McFadden, Ryan T (15)
|
NEYNS |
57.52 |
DQ |
- |