| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Barr, Fiona P (16)
|
MREAST |
59.60 |
59.80 |
0.20 |
| 2 |
Vos, Brooke C (17)
|
MREAST |
59.89 |
1:04.04 |
4.15 |
| 3 |
Wachs, Lauren B (16)
|
MREAST |
1:04.13 |
1:05.33 |
1.20 |
| 4 |
Portillo, Fernanda P (15)
|
MREAST |
1:05.77 |
1:06.45 |
0.68 |
| 5 |
Nalepka, Katherine J (16)
|
MREAST |
1:06.23 |
1:06.46 |
0.23 |
| 6 |
Wiese, Zoey G (15)
|
MREAST |
1:03.30 |
1:06.47 |
3.17 |
| 7 |
Chen, Ella Y (16)
|
MREAST |
1:08.18 |
1:06.89 |
-1.29 |
| 8 |
Fogli, Caterina (15)
|
MREAST |
1:01.71 |
1:07.91 |
6.20 |
| 9 |
Wang, Melissa R (15)
|
MREAST |
1:11.49 |
1:13.31 |
1.82 |
| 10 |
Giorgio, Ela D (13)
|
MREAST |
1:49.31 |
1:44.12 |
-5.19 |
| 11 |
Fleming, Beatrix R (12)
|
MREAST |
|
1:44.83 |
- |
|
Zona, Abigail E (9)
|
MRBAD |
2:07.00 |
NS |
- |