| Year | Class 4A/AA | Time | Class 3A/A | Time | Class 2A/B | Time |
|---|---|---|---|---|---|---|
| 1955 | Rock Springs | 45.4 | Cody | 45.9 | Pinedale | 47.0 |
| 1954 | Natrona County | 45.0 | Riverton | 46.35 | Egbert | 47.6 |
| 1953 | Rock Springs | 45.2 | Green River | 46.8 | Pinedale | 48.2 |
Wyoming high school sports: Champions, all-state, state tournament results and more
| Year | Class 4A/AA | Time | Class 3A/A | Time | Class 2A/B | Time |
|---|---|---|---|---|---|---|
| 1955 | Rock Springs | 45.4 | Cody | 45.9 | Pinedale | 47.0 |
| 1954 | Natrona County | 45.0 | Riverton | 46.35 | Egbert | 47.6 |
| 1953 | Rock Springs | 45.2 | Green River | 46.8 | Pinedale | 48.2 |