| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Depawlikowski, Boleck (23)
|
FGMACM |
49.50 |
51.86 |
2.36 |
| 2 |
Aimable, Steven (20)
|
FGAZFL |
49.34 |
51.94 |
2.60 |
| 2 |
Marrero, Alex (17)
|
FGAZFL |
51.53 |
51.94 |
0.41 |
| 4 |
Morales, Yeziel D (23)
|
FGAZFL |
49.46 |
52.90 |
3.44 |
| 5 |
Nordheim, Ryan E (17)
|
FGSAS |
56.91 |
52.93 |
-3.98 |
| 6 |
Zapata, Juan F (18)
|
FGAZFL |
52.22 |
53.54 |
1.32 |
| 7 |
Wilson, Benjamin (18)
|
FGMCDA |
51.64 |
53.85 |
2.21 |
| 8 |
Laing, Darren (18)
|
FGTSA |
55.34 |
54.00 |
-1.34 |
| 9 |
Rogatinsky, Andrew J (17)
|
FGPST |
57.94 |
54.84 |
-3.10 |
| 10 |
Marquez, Alex S (17)
|
FGPOMP |
56.02 |
54.91 |
-1.11 |
| 11 |
Odlum-Smith, Jayan (17)
|
FGUN-1 |
1:05.35 |
55.35 |
-10.00 |
| 12 |
Wilson, Robert D (17)
|
FGSOFL |
55.29 |
55.63 |
0.34 |
| 13 |
Lilley, Daniel E (17)
|
FGSFTL |
58.32 |
55.82 |
-2.50 |
| 14 |
Seniuta, Tadas (17)
|
FGSAS |
55.25 |
56.75 |
1.50 |
| 15 |
D'Avi, Jack (17)
|
FGTSA |
53.37 |
56.94 |
3.57 |
| 16 |
Albury, Trent J (17)
|
FGPCS |
53.13 |
57.11 |
3.98 |
| 17 |
Petranchuk, Caleb P (17)
|
FGJDST |
1:00.52 |
57.23 |
-3.29 |
| 18 |
Phung, Tim (17)
|
FGNMST |
57.98 |
57.34 |
-0.64 |
| 19 |
Cline, Michael J (17)
|
FGCCPR |
54.60 |
57.35 |
2.75 |
| 20 |
Gardner, Troy P (18)
|
FGWOW |
58.10 |
58.29 |
0.19 |
| 21 |
Lopez, Sebastian A (17)
|
FGMWA |
58.40 |
58.38 |
-0.02 |
| 22 |
Nimroozi, Sam (18)
|
FGSFTL |
56.82 |
59.08 |
2.26 |
| 23 |
Gomez, Rodrigo A (17)
|
FGMWA |
59.75 |
59.89 |
0.14 |
| 24 |
Perdomo, Jose M (17)
|
FGHSC |
58.62 |
1:00.28 |
1.66 |
| 25 |
Downey, Caleb E (19)
|
FGPST |
58.15 |
1:00.38 |
2.23 |
| 26 |
Chaimowicz, Nicholas V (17)
|
FGSOFL |
58.85 |
1:00.80 |
1.95 |
| 27 |
Rosado, Louis D (17)
|
FGNPB |
1:00.50 |
1:07.16 |
6.66 |
|
Quijada, Daniel (17)
|
FGHSC |
1:00.19 |
NS |
- |
|
Lacoursiere, Spence M (20)
|
FGHAT |
53.80 |
NS |
- |
|
Ramirez, Daniel Z (26)
|
FGWASC |
46.73 |
NS |
- |