| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Sheehan, Reagan M (8)
|
MAJW |
52.20 |
52.29 |
0.09 |
| 2 |
Smallwood, Charlotte R (8)
|
MATRI |
52.37 |
52.60 |
0.23 |
| 3 |
Fencl, Eve M (8)
|
MAJW |
56.50 |
53.89 |
-2.61 |
| 4 |
Shaw, Christina J (8)
|
MAJW |
|
57.68 |
- |
| 5 |
Albuquerque, Sylvia G (8)
|
MAUN3 |
|
58.14 |
- |
| 6 |
Scott, Emma G (8)
|
MASJAC |
1:08.63 |
59.39 |
-9.24 |
| 7 |
Morgan, Lily M (8)
|
MASJAC |
|
59.57 |
- |
| 8 |
Bell, Sofia R (8)
|
MACHEL |
|
1:01.29 |
- |
| 9 |
Chatrath, Ivana (8)
|
MAJW |
1:03.98 |
1:02.21 |
-1.77 |
| 10 |
Harada, Madeline V (7)
|
MAJW |
|
1:08.57 |
- |
| 11 |
Cruse, Vivian L (7)
|
MAJW |
|
1:09.57 |
- |
| 12 |
Jacobs, Heidi A (7)
|
MAJW |
1:13.35 |
1:09.92 |
-3.43 |
| 13 |
Sheehan, Shaelin J (6)
|
MAJW |
|
1:16.97 |
- |
| 14 |
Cooper, Lindsay A (6)
|
MATRI |
|
1:26.95 |
- |
| 15 |
Shadman, Sydney E (7)
|
MASTRM |
1:36.04 |
1:38.56 |
2.52 |
|
Liu, Emma K (8)
|
MASJAC |
|
NS |
- |