| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Bacon, Phoebe M (12)
|
PVPV |
58.39 |
58.85 |
0.46 |
| 2 |
Burtseva, Maria (12)
|
MRMETR |
1:00.05 |
59.84 |
-0.21 |
| 3 |
Pryne, Jessica L (12)
|
MRMETR |
1:01.17 |
1:00.23 |
-0.94 |
| 4 |
Perezous, Janika (12)
|
PVPV |
1:00.41 |
1:01.28 |
0.87 |
| 5 |
Deuel, Megan G (12)
|
NINI |
1:01.83 |
1:02.03 |
0.20 |
| 6 |
Murphy, Sophie (11)
|
CTCT |
1:01.32 |
1:02.26 |
0.94 |
| 7 |
Brandbergh, Ellie J (12)
|
MAMA |
1:02.89 |
1:02.54 |
-0.35 |
| 8 |
Kernaghan, Lily (12)
|
CTCT |
1:02.94 |
1:02.79 |
-0.15 |
| 8 |
Jackson, Raylen E (12)
|
PVPV |
1:00.74 |
1:02.79 |
2.05 |
| 10 |
Walsh, Gabrielle A (12)
|
MAMA |
1:01.27 |
1:02.82 |
1.55 |
| 11 |
Ganihanova, Aziza (12)
|
NJNJS |
1:01.81 |
1:02.87 |
1.06 |
| 12 |
Daly, Kaelan G (12)
|
MAMA |
1:01.56 |
1:02.95 |
1.39 |
| 13 |
Silverman, Aeva (12)
|
CTCT |
1:02.14 |
1:03.17 |
1.03 |
| 14 |
Arts, Molly K (12)
|
NJNJS |
1:04.02 |
1:04.03 |
0.01 |
| 15 |
Lew, Katie G (12)
|
MRMETR |
1:02.28 |
1:04.21 |
1.93 |
| 16 |
Patterson, Innocende R (12)
|
AMAM |
1:03.99 |
1:04.51 |
0.52 |
| 17 |
Wisner, Taryn A (12)
|
NINI |
1:02.33 |
1:04.62 |
2.29 |
| 18 |
Morrissey, Emily P (12)
|
AMAM |
1:03.12 |
1:04.63 |
1.51 |
| 19 |
Pawli, Kya M (12)
|
NINI |
1:04.48 |
1:05.31 |
0.83 |
| 20 |
Borowinski, Madison L (12)
|
NJNJS |
1:04.16 |
1:05.34 |
1.18 |
| 21 |
Ferrara, Zoey R (12)
|
ADAD |
1:05.19 |
1:05.52 |
0.33 |
| 22 |
McLeod, Marjorie E (12)
|
MEME |
1:03.72 |
1:05.62 |
1.90 |
| 23 |
Hoffman, Emma K (12)
|
ADAD |
1:06.46 |
1:06.12 |
-0.34 |
| 24 |
Sweet, Sophie I (12)
|
MEME |
1:09.30 |
1:07.32 |
-1.98 |
| 25 |
Leung, Adelaide Y (12)
|
ADAD |
1:07.82 |
1:08.14 |
0.32 |
| 26 |
Doncevic, Sarah E (12)
|
AMAM |
1:03.17 |
1:08.51 |
5.34 |
| 27 |
Park, Jaehee (12)
|
MEME |
1:07.73 |
1:09.32 |
1.59 |