| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Frantsevskiy, Egor (13)
|
FGUN-0 |
28.13 |
26.36 |
-1.77 |
| 2 |
Doyle, Sean R (14)
|
FGSUN |
29.68 |
27.92 |
-1.76 |
| 3 |
Nimroozi, Nick (13)
|
FGSFTL |
28.99 |
27.93 |
-1.06 |
| 4 |
Porras, Giancarlo G (14)
|
FGAZFL |
30.66 |
28.40 |
-2.26 |
| 5 |
Fernandez, Sebastian (14)
|
FGYSF |
28.54 |
28.60 |
0.06 |
| 6 |
Smith, Joshua L (13)
|
FGHAT |
31.35 |
28.63 |
-2.72 |
| 7 |
Hernaiz, Santiago (13)
|
FGYSF |
|
28.81 |
- |
| 8 |
Etchevers, Frank M (13)
|
FGCSSC |
32.05 |
29.52 |
-2.53 |
| 9 |
Sarmiento, Juan E (13)
|
FGPST |
32.09 |
29.80 |
-2.29 |
| 10 |
Fediushko, Roman (13)
|
FGSFTL |
32.65 |
30.37 |
-2.28 |
| 11 |
Perez, Christian (14)
|
FGPST |
32.14 |
31.43 |
-0.71 |
| 12 |
Martins, Bruno (13)
|
FGSOFL |
35.09 |
31.57 |
-3.52 |
| 13 |
Porras, Andre A (13)
|
FGAZFL |
33.86 |
32.00 |
-1.86 |
| 14 |
Wampler, Brady A (13)
|
FGPST |
35.55 |
32.37 |
-3.18 |
| 15 |
Hussey, Lucas (13)
|
FGCCPR |
33.10 |
32.75 |
-0.35 |
| 16 |
Joseph, Brian C (14)
|
FGCCPR |
33.97 |
32.89 |
-1.08 |
| 17 |
NG, Evan (13)
|
FGCSSC |
36.26 |
33.02 |
-3.24 |
| 18 |
Castiblanco, Miguel A (13)
|
FGPST |
|
33.04 |
- |
| 19 |
Hardin, Bryce G (13)
|
FGPOMP |
33.97 |
33.40 |
-0.57 |
| 20 |
Green, Elliott N (14)
|
FGPOMP |
35.11 |
33.69 |
-1.42 |
| 21 |
Peacock, Alex (14)
|
FGYSF |
|
35.01 |
- |
|
Vaiani, Ethan (13)
|
FGTSA |
|
NS |
- |
|
Korkis, Ben P (13)
|
FGCSSC |
47.40 |
NS |
- |