| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Pollinger, Jackson (10)
|
ADDELM |
44.09 |
42.81 |
-1.28 |
| 2 |
West, Harper L (10)
|
ADSCHE |
44.64 |
43.83 |
-0.81 |
| 3 |
Fish, Evan (9)
|
ADDELM |
45.88 |
44.74 |
-1.14 |
| 4 |
Rahman, Anvari K (10)
|
ADSCHE |
48.70 |
46.48 |
-2.22 |
| 5 |
Cohen, Benjamin (10)
|
ADDELM |
48.39 |
46.82 |
-1.57 |
| 6 |
Greenwood, Caleb K (10)
|
ADSCHE |
47.38 |
47.31 |
-0.07 |
| 7 |
Steward, Harvey C (9)
|
ADKING |
49.99 |
48.51 |
-1.48 |
| 8 |
Zufelt, Hunter D (9)
|
ADSCHE |
54.91 |
50.11 |
-4.80 |
| 9 |
Clarke, James (9)
|
ADUSAM |
48.38 |
50.18 |
1.80 |
| 10 |
Ross, Nicholas (10)
|
ADDELM |
51.52 |
50.77 |
-0.75 |
| 11 |
Craig, Logan T (9)
|
ADSCHE |
52.77 |
51.71 |
-1.06 |
| 12 |
Dmitriev, Ernest (10)
|
ADUSAM |
50.86 |
51.99 |
1.13 |
| 13 |
Hulihan, Milo (10)
|
ADDELM |
48.96 |
52.33 |
3.37 |
| 14 |
Gillette, Brent A (10)
|
ADCLRK |
55.82 |
52.62 |
-3.20 |
| 15 |
Ewing-Van Deloo, Austin A (10)
|
ADJJSC |
54.00 |
52.96 |
-1.04 |
| 16 |
Sheppard-Gould, Odysseus S (9)
|
ADHAWK |
54.02 |
53.87 |
-0.15 |
| 17 |
Torborg, Benjamin J (10)
|
ADHAWK |
54.37 |
58.84 |
4.47 |
| 18 |
Somerville, Liam (10)
|
ADDELM |
1:03.93 |
1:02.41 |
-1.52 |
| 19 |
Pipes, Raedyn R (9)
|
ADSCHE |
1:00.53 |
1:02.79 |
2.26 |
| 20 |
Sieg, Theodor (9)
|
ADDELM |
1:05.27 |
1:03.17 |
-2.10 |
| 21 |
Dugan, Michael R (10)
|
ADSCHE |
1:04.21 |
1:13.51 |
9.30 |
|
Goodall, Liam J (9)
|
ADSCHE |
47.55 |
DQ |
- |
|
Robinson, Benjamin J (9)
|
ADSCHE |
48.70 |
NS |
- |