Related Clues:
- Large margin
- Sizable margin
- Hiker's measure
- Event not run in the Olympics
- Unit of length
- Measure of length
- Race that once had a four-minute barrier
- 63,360 inches
- 80% of the Kentucky Derby
- Race distance
- Denver's elevation
- Length unit
- Horse-race distance, perhaps
- Two-thirds of the Belmont Stakes
- Runner's distance