| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Kahn, Shelby C (15)
|
MARY |
52.37 |
55.85 |
3.48 |
| 2 |
Manthorp, Sarah L (16)
|
MAUMLY |
53.99 |
55.90 |
1.91 |
| 3 |
Poeta, Sophia R (16)
|
MAUMLY |
55.01 |
56.40 |
1.39 |
| 4 |
Wasielevski, Caroline (16)
|
MARY |
55.82 |
57.55 |
1.73 |
| 5 |
Lahmann-Metcalfe, Helen M (15)
|
MARY |
55.38 |
58.15 |
2.77 |
| 6 |
Marlow, Alexandra T (16)
|
MAUMLY |
59.30 |
59.91 |
0.61 |
| 7 |
Darmofal, Hannah (17)
|
MAWCAY |
59.85 |
1:01.16 |
1.31 |
| 8 |
Rutecki, Julianna (15)
|
MAUMLY |
1:00.88 |
1:01.66 |
0.78 |
| 9 |
Keener, Victoria M (15)
|
MABYNS |
1:01.72 |
1:02.19 |
0.47 |
| 10 |
Filipovski, Sara (15)
|
MAPAY |
1:03.45 |
1:02.27 |
-1.18 |
| 11 |
Christman, Camille I (16)
|
MABYNS |
1:03.77 |
1:03.12 |
-0.65 |
| 12 |
Shannon, Maggie S (17)
|
MAWCAY |
1:03.27 |
1:03.65 |
0.38 |
| 13 |
Stratton-Brown, Catrin E (16)
|
MARY |
1:09.46 |
1:08.11 |
-1.35 |
| 14 |
Taylor, Mary C (17)
|
MAWCAY |
|
1:08.33 |
- |