| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
McNulty, Joanna M (16)
|
MRLIAC |
17:52.93 |
17:55.26 |
2.33 |
| 2 |
Mink, Emily Q (15)
|
MRLIAC |
18:07.90 |
18:08.08 |
0.18 |
| 3 |
Gallego, Samantha E (16)
|
MRLIAC |
18:03.52 |
18:09.42 |
5.90 |
| 4 |
Reynolds, Kerryann (15)
|
MRHAA |
18:19.55 |
18:17.18 |
-2.37 |
| 5 |
Karras, Sophia O (12)
|
MRLIAC |
19:44.14 |
18:28.02 |
-76.12 |
| 6 |
Morisi, Kiani B (13)
|
MRLIAC |
18:25.11 |
18:32.14 |
7.03 |
| 7 |
Ye, Camellia (14)
|
MRLIAC |
19:00.07 |
18:34.29 |
-25.78 |
| 8 |
Chan, Kimberly R (17)
|
MRLIAC |
18:16.50 |
18:34.89 |
18.39 |
| 9 |
Brown, Alana E (13)
|
MRLIAC |
17:54.27 |
18:36.55 |
42.28 |
| 10 |
Giovanniello, Kirsten M (15)
|
MRLIAC |
18:43.13 |
18:40.36 |
-2.77 |
| 11 |
Guglielmo, Jessica (16)
|
MRLIAC |
18:24.54 |
18:49.64 |
25.10 |
| 12 |
Chong, Vanessa (13)
|
MRLGAC |
19:17.86 |
18:52.31 |
-25.55 |
| 13 |
Knight, Caitlin C (13)
|
MRLIAC |
19:05.99 |
19:09.35 |
3.36 |
| 14 |
Egan, Orla M (13)
|
MRLGAC |
19:22.41 |
19:22.16 |
-0.25 |
| 15 |
Pusateri, Jillian G (14)
|
MRLIAC |
19:33.93 |
19:23.73 |
-10.20 |
| 16 |
French, Isabelle (15)
|
MRTS |
19:48.95 |
19:48.12 |
-0.83 |
| 17 |
Piantanida, Carlotta (13)
|
MRLIAC |
20:00.00 |
19:52.91 |
-7.09 |
| 18 |
DePhillips, Michaela C (15)
|
MRLIAC |
19:12.37 |
20:15.81 |
63.44 |
| 19 |
Fernandez, Samantha (13)
|
MRLGAC |
21:07.84 |
21:32.81 |
24.97 |
|
McNamara, Margaret P (14)
|
MRLIAC |
18:23.37 |
DQ |
- |