| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Korolev, Ilya G (8)
|
PVMACH |
44.63 |
41.49 |
-3.14 |
| 2 |
Siegmund, Roland A (8)
|
PVSDS |
45.59 |
46.06 |
0.47 |
| 3 |
Dickey, Evan J (8)
|
PVAAC |
49.68 |
46.39 |
-3.29 |
| 4 |
Williams, Archer A (7)
|
PVYORK |
52.23 |
48.57 |
-3.66 |
| 5 |
Mossburg, Cullen A (8)
|
PVPM |
|
48.80 |
- |
| 6 |
Harper, Culhane M (8)
|
PVAAC |
|
49.46 |
- |
| 7 |
Nguyen, Gabriel I (8)
|
PVYORK |
47.38 |
49.64 |
2.26 |
| 8 |
Lewis, Miles E (7)
|
PVYORK |
|
49.99 |
- |
| 9 |
Harvey, Nicholas M (7)
|
PVMACH |
|
50.02 |
- |
| 10 |
Mullaney, Kipling P (7)
|
PVASA |
55.97 |
52.85 |
-3.12 |
| 11 |
Sherry, Bennett E (7)
|
PVPM |
51.44 |
52.90 |
1.46 |
| 12 |
Brown, Nolan A (8)
|
PVYORK |
|
53.78 |
- |
| 13 |
Seiler, Henry W (8)
|
PVAAC |
1:01.96 |
56.39 |
-5.57 |
| 14 |
Lawrence, Reid M (8)
|
PVASA |
59.54 |
57.96 |
-1.58 |
| 15 |
Aliabadi, Aiden S (7)
|
PVASA |
1:00.64 |
58.04 |
-2.60 |
| 16 |
Stueck, Jack P (8)
|
PVAAC |
1:01.74 |
58.58 |
-3.16 |
| 17 |
Ross, Liam P (8)
|
PVAAC |
|
58.59 |
- |
| 18 |
Foshay, Ryan W (8)
|
PVAAC |
1:00.73 |
1:00.79 |
0.06 |
| 19 |
Dunlavy, Joseph D (6)
|
PVPM |
|
1:02.06 |
- |
| 20 |
Dillon, Robert S (8)
|
PVYORK |
|
1:02.34 |
- |
| 21 |
Hernandez, Isaac (8)
|
PVASA |
1:11.21 |
1:03.69 |
-7.52 |
| 22 |
Hopkins, Dustin (7)
|
PVASA |
|
1:06.60 |
- |
|
Charpentier, Wesley M (8)
|
PVPM |
|
DQ |
- |
|
Reyes, Thomas J (8)
|
PVPM |
|
NS |
- |
|
Leininger, Benjamin M (7)
|
PVSDS |
|
NS |
- |
|
Karlsen, Hans E (8)
|
PVASA |
57.56 |
NS |
- |