| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Baird, Kevin A (10)
|
ADSCHE |
40.37 |
38.63 |
-1.74 |
| 2 |
O'Keeffe, Grant P (9)
|
ADGLFY |
44.08 |
43.40 |
-0.68 |
| 3 |
Young, Liam D (9)
|
ADTAC |
41.88 |
43.81 |
1.93 |
| 4 |
Kaste, Tyler J (10)
|
ADSCHE |
47.76 |
45.87 |
-1.89 |
| 5 |
Lettre, Philip J (10)
|
ADTAC |
49.53 |
48.29 |
-1.24 |
| 6 |
Greaux, Logan M (9)
|
ADDELM |
52.38 |
50.53 |
-1.85 |
| 7 |
Jenkins, Wesley L (9)
|
ADBSPA |
52.43 |
50.62 |
-1.81 |
| 8 |
Goffioul, Loic M (10)
|
ADSARY |
49.47 |
50.75 |
1.28 |
| 9 |
Keller, Colin P (10)
|
ADGRGF |
59.99 |
59.05 |
-0.94 |
| 10 |
Brodt, Maddox A (9)
|
ADGRGF |
56.37 |
59.23 |
2.86 |
| 11 |
Knill, Timothy C (9)
|
ADGLFY |
|
1:00.04 |
- |
|
Goodfellow, Maxwell A (10)
|
ADADDI |
|
DQ |
- |
|
White, Nicholas P (9)
|
ADSARY |
|
DQ |
- |
|
Reardon, Carter M (9)
|
ADSCHE |
|
NS |
- |