| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Hamill, Emily C (12)
|
MAUMLY |
|
18:04.06 |
- |
| 2 |
Walters, Ava M (13)
|
MAPWAC |
18:37.59 |
18:17.71 |
-19.88 |
| 3 |
Bailey, Elishka S (16)
|
MABSC |
19:09.12 |
18:47.08 |
-22.04 |
| 4 |
Rozes, Isabel K (14)
|
MASSC |
20:52.06 |
19:07.02 |
-105.04 |
| 5 |
Meiler, Victoria G (17)
|
MABSC |
19:30.42 |
19:16.19 |
-14.23 |
| 6 |
Johnson, Anna K (14)
|
MABSC |
20:56.55 |
19:23.36 |
-93.19 |
| 7 |
Serfass, Madeline G (13)
|
MAHAC |
19:49.82 |
19:23.46 |
-26.36 |
| 8 |
Gale, Morgan A (17)
|
MABSC |
20:23.90 |
19:33.98 |
-49.92 |
| 9 |
Steinmetz, Zoe N (14)
|
MANSC |
|
19:35.86 |
- |
| 10 |
Lochstet, Peregrine E (14)
|
MAUDAC |
19:48.11 |
19:39.16 |
-8.95 |
| 11 |
Krieg, Sylvia C (15)
|
MASSC |
20:34.17 |
19:40.68 |
-53.49 |
| 12 |
Cappola, Christina M (16)
|
MASSC |
19:48.99 |
19:45.45 |
-3.54 |
| 13 |
Moore, Lily A (12)
|
MAHAC |
21:21.25 |
19:47.00 |
-94.25 |
| 14 |
Hazell, Elsley A (18)
|
MABSC |
19:33.55 |
19:49.66 |
16.11 |
| 15 |
Agostini, Natalie T (17)
|
MABSC |
20:41.27 |
19:49.90 |
-51.37 |
| 16 |
Kent, Lillian S (13)
|
MABSC |
|
20:09.51 |
- |
| 17 |
Auwarter, Olivia N (12)
|
MAUDAC |
|
20:24.30 |
- |
| 18 |
Wareikis, Isabella S (13)
|
MABSC |
|
20:33.87 |
- |
| 19 |
Kennedy, Kayleigh J (14)
|
MASSC |
20:50.49 |
20:50.58 |
0.09 |
| 20 |
Lorei, Violet C (15)
|
MABSC |
22:07.76 |
20:57.37 |
-70.39 |
| 21 |
Chou, Caitlin (14)
|
MABSC |
|
21:20.08 |
- |
| 22 |
Torrillo, Nicole L (18)
|
MABSC |
21:45.20 |
21:22.84 |
-22.36 |
| 23 |
Foo, Cassandra S (13)
|
MABSC |
|
21:24.05 |
- |
| 24 |
Stankiewicz-Goldsmit, Olivi (12)
|
MASSC |
|
22:35.76 |
- |
|
Galvin, Tamar (16)
|
MABSC |
21:51.27 |
DNF |
-1311.27 |
|
Becker, Mandy C (16)
|
MABSC |
19:49.45 |
DQ |
- |
|
Vandeveer, Camille C (17)
|
MABSC |
20:41.80 |
NS |
- |
|
Dymer, Maria A (14)
|
MALMAC |
20:38.30 |
NS |
- |
|
McMullen, Lydia K (14)
|
MAHAC |
20:42.66 |
NS |
- |
|
Kelly, Ava L (15)
|
MABSC |
23:07.41 |
NS |
- |
|
Aloi, Beatrice (15)
|
MABSC |
25:40.40 |
NS |
- |