Duff Dog Backyard Ultra 2026
Duff Dog Backyard Ultra is a backyard ultra in Luverne, MN on October 10, 2026. A 4.167-mile yard every hour until one runner is left. See its course record, hour cap and past editions on Find My Ultra.
- Format
- Backyard ultra — a 4.167-mile yard every hour until one runner is left
- Gain per yard
- 350 ft
- Course record
- 29 yards (121 mi), 2025
- Hour cap
- Not published