| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Eruslanova, Ekaterina (13)
|
MASSC |
|
18:34.26 |
- |
| 2 |
Anderson, Madeleine A (16)
|
MAFCA |
17:22.92 |
18:45.80 |
82.88 |
| 3 |
Iannacone, Megan C (14)
|
MAGSA |
19:12.93 |
19:28.30 |
15.37 |
| 4 |
McHugh, Bridget K (17)
|
MACHEL |
19:20.56 |
19:30.18 |
9.62 |
| 5 |
Guthy, Olivia G (17)
|
MACHEL |
18:44.95 |
19:34.60 |
49.65 |
| 6 |
Calibeo, Cristina M (14)
|
MAGSA |
18:49.53 |
19:37.92 |
48.39 |
| 7 |
Matson, Sara (15)
|
MAGSA |
18:11.19 |
19:38.30 |
87.11 |
| 8 |
Volpp, Anna (16)
|
MAFCA |
20:19.95 |
19:50.28 |
-29.67 |
| 9 |
Shack, Sophie (17)
|
MAFCA |
19:32.28 |
19:51.09 |
18.81 |
| 10 |
Maus, Anna S (16)
|
MACHEL |
|
19:53.12 |
- |
| 11 |
Coonley, Campbell P (13)
|
MARAD |
20:16.38 |
19:57.75 |
-18.63 |
| 12 |
Naveen, Annika (13)
|
MAFCA |
20:13.93 |
20:05.39 |
-8.54 |
| 13 |
Delosrios, Isabel N (17)
|
MACHEL |
20:31.71 |
20:20.30 |
-11.41 |
| 14 |
Danastasio, Giovanna M (13)
|
MAWAVE |
20:38.38 |
20:25.37 |
-13.01 |
| 15 |
Pillar, Claire E (12)
|
MAFCA |
19:58.75 |
20:29.49 |
30.74 |
| 16 |
English, Chloe L (12)
|
MAFCA |
22:46.40 |
20:36.97 |
-129.43 |
| 17 |
Shifflett, Ella M (13)
|
MASSC |
|
20:37.52 |
- |
| 18 |
Raphaely, Kathryn D (18)
|
MAFCA |
19:14.50 |
20:42.08 |
87.58 |
| 19 |
Rutkowski, Bethany C (15)
|
MACHEL |
21:01.92 |
20:43.32 |
-18.60 |
| 20 |
Behling, Clara A (11)
|
MAFCA |
|
20:48.32 |
- |
| 21 |
O'Neill, Eleanor G (12)
|
MARAD |
22:16.48 |
20:58.76 |
-77.72 |
| 22 |
O'Neill, Emelia C (14)
|
MARAD |
21:24.02 |
21:05.33 |
-18.69 |
| 23 |
Morales, Charlotte (14)
|
MAFCA |
23:00.75 |
21:17.95 |
-102.80 |
| 24 |
Wilkerson, Sonya F (13)
|
MAFCA |
21:17.26 |
21:30.60 |
13.34 |
| 25 |
Bell, Olivia L (15)
|
MACHEL |
22:53.67 |
21:48.62 |
-65.05 |
| 26 |
O'Neill, Molly K (14)
|
MACHEL |
22:42.97 |
21:48.97 |
-54.00 |
| 27 |
Race, Eleanor (12)
|
MATWAC |
22:13.09 |
22:25.08 |
11.99 |
| 28 |
Galvin, Tamar (14)
|
MAFCA |
24:54.73 |
22:26.39 |
-148.34 |
| 29 |
Lane, Rebecca H (12)
|
MAFCA |
23:39.96 |
22:31.27 |
-68.69 |
| 30 |
Eichen, Jessica L (14)
|
MAFCA |
25:05.34 |
22:34.28 |
-151.06 |
| 31 |
Oswald, Jamie L (11)
|
MAFCA |
|
22:48.97 |
- |
| 32 |
Cohen, Maren K (11)
|
MAFCA |
|
22:51.55 |
- |
| 33 |
Reyes-Toidze, Mariam (13)
|
MAFCA |
|
23:27.05 |
- |
| 34 |
Burson, Amaya S (12)
|
MAFCA |
|
24:02.04 |
- |
| 35 |
Huynh, An T (12)
|
MAFCA |
|
25:06.09 |
- |
| 36 |
Melendez, Andrea T (12)
|
MAFCA |
|
25:27.70 |
- |
| 37 |
Murray, Megan (13)
|
MAFCA |
|
27:00.88 |
- |
| 38 |
Goyal, Milan (12)
|
MAFCA |
|
27:15.98 |
- |
| 39 |
Kesler, Ella V (12)
|
MAFCA |
|
28:19.50 |
- |
| 40 |
Mao, Yingjia (12)
|
MAFCA |
|
28:33.23 |
- |