| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Klies, Ella M (10)
|
MTBAC |
3:02.67 |
3:04.18 |
1.51 |
| 2 |
Urban, Elizabeth G (10)
|
MTHLST |
3:17.45 |
3:18.55 |
1.10 |
| 3 |
Stratton, Sedona A (9)
|
SRBY |
3:15.01 |
3:23.31 |
8.30 |
| 4 |
Hiday, Lila G (10)
|
MTMYST |
3:28.39 |
3:25.63 |
-2.76 |
| 5 |
Fero, Greta A (10)
|
MTMYST |
|
3:36.60 |
- |
| 6 |
Woldtvedt, Ella N (9)
|
MTUN |
|
3:36.99 |
- |
| 7 |
Hahn, Kaylee R (10)
|
SRBY |
3:32.28 |
3:48.92 |
16.64 |
| 8 |
Germer Mills, Ellery A (10)
|
MTMAC |
|
3:49.77 |
- |
| 9 |
Ross, Moira C (9)
|
MTBOZ |
4:04.91 |
3:54.98 |
-9.93 |
| 10 |
Schiffman, Lillian P (10)
|
UTSLSL |
3:44.01 |
3:59.19 |
15.18 |
| 11 |
Welzenbach, Alena S (9)
|
MTMAC |
|
4:09.29 |
- |
| 12 |
Courtnage, Ainsley R (10)
|
MTHAV |
3:58.64 |
4:13.07 |
14.43 |
| 13 |
Dulong, Beatrice L (9)
|
UTSLSL |
|
4:15.30 |
- |
| 14 |
Ringer, Emma R (9)
|
MTBOZ |
|
4:22.43 |
- |
| 15 |
Shriram, Radha M (9)
|
PNWAVE |
|
4:55.66 |
- |
|
Fehlberg, Kashmira L (10)
|
UTSLSL |
|
DQ |
- |
|
Laird, Spencer E (10)
|
MTMAC |
|
DQ |
- |
|
Kingsland, Ella M (10)
|
MTUN |
|
DQ |
- |
|
Schroeder, Belle E (9)
|
MTUN |
|
DQ |
- |
|
Lilyquist, Maya E (9)
|
MTBMA |
|
DQ |
- |
|
Carlin, Alexis N (10)
|
MTLAKE |
|
NS |
- |