| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Brown, Samuel J (16)
|
ADUN |
50.94 |
52.34 |
1.40 |
| 2 |
Hale, Alise J (17)
|
ADSCHE |
58.60 |
59.60 |
1.00 |
| 3 |
Otten, Ryan J (14)
|
ADSCHE |
59.50 |
59.84 |
0.34 |
| 4 |
Hart, Jenna K (15)
|
ADSCHE |
1:00.91 |
1:00.22 |
-0.69 |
| 5 |
Sellnow, Abigail V (15)
|
ADUN |
59.66 |
1:02.44 |
2.78 |
| 6 |
Boyle, Julia C (15)
|
ADSCHE |
1:04.36 |
1:05.75 |
1.39 |
| 7 |
Hilt, Eva L (16)
|
ADSCHE |
1:04.61 |
1:06.72 |
2.11 |
| 8 |
Santabarbara, Marianna (17)
|
ADUN |
1:01.95 |
1:06.97 |
5.02 |
| 9 |
Ferrie, Jillian E (15)
|
ADSCHE |
1:10.00 |
1:08.96 |
-1.04 |
| 10 |
Morse, Sophia E (15)
|
ADUN |
1:13.42 |
1:13.39 |
-0.03 |
| 11 |
Sepulveda, Isabella J (17)
|
ADSCHE |
|
1:14.55 |
- |
|
Wettig, Gabriel J (14)
|
ADSCHE |
1:03.80 |
NS |
- |