| Rk | Athlete | 400H |
|---|---|---|
| 1 |
Iowa City West |
1:00.02 |
| 2 |
Cedar Rapids Kennedy |
1:00.25 |
| 3 |
Cedar Rapids Washington |
1:00.29 |
| 4 |
Iowa City High |
1:00.31 |
| 5 |
Cedar Falls |
1:01.35 |
| 6 |
Cedar Falls |
1:01.52 |
| 7 |
Iowa City West |
1:01.53 |
| 8 |
Dubuque Senior |
1:01.75 |
| 9 |
Iowa City Liberty |
1:01.88 |
| 10 |
Iowa City West |
1:02.00 |
| 11 |
Linn-Mar |
1:02.78 |
| 12 |
Iowa City West |
1:03.59 |
| 13 |
Xavier |
1:04.15 |
| 14 |
Prairie |
1:04.47 |
| 15 |
Iowa City High |
1:04.61 |
| 16 |
Waterloo West |
1:04.86 |
| 17 |
Iowa City West |
1:05.28 |
| 18 |
Cedar Rapids Kennedy |
1:07.00 |
| 19 |
Western Dubuque |
1:07.08 |
| 20 |
Dubuque Senior |
1:07.10 |
| 21 |
Cedar Rapids Kennedy |
1:07.22 |
| 22 |
Xavier |
1:07.47 |
| 23 |
Cedar Rapids Kennedy |
1:07.82 |
| 24 |
Iowa City West |
1:08.01 |
| 25 |
Cedar Rapids Washington |
1:08.11 |
| 26 |
Western Dubuque |
H 1:08.72 |
| 27 |
Dubuque Hempstead |
1:09.44 |
| 28 |
Waterloo West |
1:09.50 |
| 29 |
Prairie |
1:10.80 |
| 30 |
Dubuque Senior |
1:10.97 |
| 31 |
Prairie |
1:11.72 |
| 32 |
Cedar Rapids Kennedy |
1:11.85 |
| 33 |
Western Dubuque |
1:13.05 |
| 34 |
Iowa City Liberty |
1:14.95 |
| 35 |
Western Dubuque |
1:15.24 |
| 36 |
Iowa City Liberty |
1:16.73 |
| 37 |
Western Dubuque |
1:17.87 |
| 38 |
Iowa City Liberty |
1:24.49 |
Mississippi Valley