| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Bell, Grace M (9)
|
MACHEL |
49.73 |
49.82 |
0.09 |
| 2 |
Deck, Josephine M (10)
|
MACHEL |
59.81 |
53.48 |
-6.33 |
| 3 |
Hartwell, Klara E (10)
|
MACHEL |
57.80 |
57.15 |
-0.65 |
| 4 |
Zeroual, Aya (9)
|
MANAAC |
1:07.25 |
1:04.39 |
-2.86 |
| 5 |
MacDougall, Catherine S (10)
|
MACHEL |
1:06.56 |
1:05.70 |
-0.86 |
| 6 |
Rhodes, Annacatherine B (10)
|
MANAAC |
1:19.65 |
1:09.44 |
-10.21 |
| 7 |
Marsh, Cordelia (9)
|
MANAAC |
|
1:11.22 |
- |
| 8 |
Kuchar, Morgan E (10)
|
MACHEL |
|
1:14.15 |
- |
| 9 |
DiPaolo, Marisa (10)
|
MANAAC |
1:16.63 |
1:17.09 |
0.46 |
|
Bechtel, Lyla R (10)
|
MACHEL |
57.11 |
DQ |
- |
|
Lester, Angelina B (10)
|
MACHEL |
|
DQ |
- |