Backyard Ultra Curillas – El Ultimo Arriero 2026
Backyard Ultra Curillas – El Ultimo Arriero is a backyard ultra in Curillas, Spain on October 3, 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
- Not published
- Course record
- 36 yards (150 mi)
- Hour cap
- Not published