| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Johnson, Lauryn M (16)
|
MRLIAC |
17:40.00 |
17:41.49 |
1.49 |
| 2 |
McNulty, Joanna M (17)
|
MRLIAC |
17:40.11 |
17:46.94 |
6.83 |
| 3 |
Corcoran, Annabelle G (17)
|
MRLIAC |
17:27.28 |
17:48.11 |
20.83 |
| 4 |
Antoniuk, Isabela S (15)
|
MRLIAC |
17:33.18 |
18:00.81 |
27.63 |
| 5 |
Courtney, Julia M (15)
|
MRLIAC |
18:30.00 |
18:02.07 |
-27.93 |
| 6 |
McNamara, Margaret P (15)
|
MRLIAC |
17:57.06 |
18:02.49 |
5.43 |
| 7 |
Egan, Orla M (14)
|
MRLGAC |
18:39.34 |
18:09.01 |
-30.33 |
| 8 |
Morisi, Kiani B (14)
|
MRLIAC |
18:12.10 |
18:17.20 |
5.10 |
| 9 |
Karras, Sophia O (13)
|
MRLIAC |
18:11.89 |
18:21.87 |
9.98 |
| 10 |
Sommerstad, Kyra A (15)
|
MRTVSC |
18:11.11 |
18:31.40 |
20.29 |
| 11 |
Gormsen, Cavan V (12)
|
MRLIAC |
20:30.00 |
18:46.20 |
-103.80 |
| 12 |
Ye, Bridget (11)
|
MRLIAC |
20:30.00 |
18:47.38 |
-102.62 |
| 13 |
French, Isabelle (16)
|
MRTS |
19:48.12 |
19:14.36 |
-33.76 |
| 14 |
McNulty, Emma G (13)
|
MRLIAC |
21:30.00 |
19:31.10 |
-118.90 |
| 15 |
Shiebler, Patricia E (17)
|
MRIA |
18:49.36 |
19:31.29 |
41.93 |
| 16 |
Kamor, Adriana T (13)
|
MRLIAC |
20:40.00 |
19:35.40 |
-64.60 |
| 17 |
Anderson, Emma (12)
|
MRLIAC |
|
19:44.87 |
- |
| 18 |
Donnelly, Megan H (16)
|
MRIA |
18:49.00 |
20:01.78 |
72.78 |