| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Klies, Ella M (10)
|
MTBAC |
1:40.24 |
1:25.25 |
-14.99 |
| 2 |
Maganito, Elina G (10)
|
MTHLST |
1:28.37 |
1:28.86 |
0.49 |
| 3 |
Urban, Elizabeth G (10)
|
MTHLST |
1:50.90 |
1:37.17 |
-13.73 |
| 4 |
Schroeder, Belle E (9)
|
MTUN |
|
1:40.14 |
- |
| 5 |
Stratton, Sedona A (9)
|
SRBY |
1:35.13 |
1:43.39 |
8.26 |
| 6 |
Kaufman, Kyla A (10)
|
MTBAC |
|
1:43.81 |
- |
| 7 |
Hiday, Lila G (10)
|
MTMYST |
|
1:48.40 |
- |
| 8 |
Stene, Amelia M (10)
|
MTLAKE |
1:55.05 |
1:48.65 |
-6.40 |
| 9 |
Fero, Greta A (10)
|
MTMYST |
|
1:53.17 |
- |
| 10 |
Schiffman, Lillian P (10)
|
UTSLSL |
1:50.24 |
1:53.18 |
2.94 |
| 11 |
Fehlberg, Kashmira L (10)
|
UTSLSL |
|
1:54.81 |
- |
| 12 |
Flikkema, Dylon D (9)
|
MTBMA |
1:57.48 |
1:57.15 |
-0.33 |
| 13 |
Hahn, Kaylee R (10)
|
SRBY |
1:55.96 |
2:05.10 |
9.14 |
| 14 |
Flikkema, Cayla M (10)
|
MTBMA |
|
2:16.48 |
- |
| 15 |
Ross, Moira C (9)
|
MTBOZ |
2:16.39 |
2:16.94 |
0.55 |