| Year | Class 4A/AA | Time | Class 3A/A | Time | Class 2A/B | Time | Class 1A/C | Time |
|---|---|---|---|---|---|---|---|---|
| 1980 | Cheyenne Central | 1:47.22 | Newcastle | 1:50.31 | Tongue River | 1:52.19 | Encampment | 1:55.63 |
| 1979 | not contested at AA level | Buffalo | 1:48.327 | Pine Bluffs | 1:50.487 | not contested at C level |