| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Wangpo, Tenzin M (12)
|
ORLOSC |
52.06 |
53.29 |
1.23 |
| 2 |
Nishizawa, Shaw (12)
|
PNSMAC |
53.82 |
54.73 |
0.91 |
| 3 |
Pierce, August A (12)
|
PNSMAC |
58.26 |
56.98 |
-1.28 |
| 4 |
Ho, William M (11)
|
PNSMAC |
56.54 |
57.02 |
0.48 |
| 5 |
Hu, Christopher H (12)
|
ORBLAC |
58.67 |
57.25 |
-1.42 |
| 6 |
Kim, Seohyun (12)
|
ORBLAC |
57.97 |
57.41 |
-0.56 |
| 7 |
Xia, Ian (12)
|
ORBLAC |
57.15 |
57.55 |
0.40 |
| 8 |
Lee-Weinand, Christopher H (12)
|
PCDACA |
56.19 |
58.72 |
2.53 |
| 9 |
Schoenheit, Sylvan K (11)
|
ORLOSC |
1:01.04 |
1:01.20 |
0.16 |
| 10 |
Kim, Sungkook (11)
|
ORLOSC |
1:02.21 |
1:01.83 |
-0.38 |
| 11 |
Roman, Oliver (12)
|
PCDACA |
1:02.18 |
1:02.31 |
0.13 |
| 12 |
Downey, Andrew E (11)
|
ORBLAC |
1:03.46 |
1:02.60 |
-0.86 |
| 13 |
Epifanov, Alexandru O (11)
|
ORLOSC |
1:01.82 |
1:02.95 |
1.13 |
| 14 |
Abdelrahman, Omar (12)
|
PNSMAC |
1:03.56 |
1:03.36 |
-0.20 |
| 15 |
Chen, Peter J (12)
|
PCDACA |
1:03.13 |
1:05.28 |
2.15 |
| 16 |
Yim, Taewon T (11)
|
PCDACA |
1:07.22 |
1:05.32 |
-1.90 |
| 17 |
Vail, Alex W (11)
|
ORLOSC |
1:01.85 |
1:05.41 |
3.56 |
| 18 |
Stender, Owen B (11)
|
PNSMAC |
1:07.44 |
1:05.70 |
-1.74 |
|
Wong, Jalen J (11)
|
PCDACA |
1:09.06 |
NS |
- |
|
Romashenko, David E (12)
|
ORBLAC |
58.89 |
NS |
- |