Fourmidable

FEB

21

2026

Join FOURmidable trail races in Auburn, CA on February 21, 2026, offering 50K, 35.5K, half marathon and 13K for all abilities. Prize money and course record bonuses add extra excitement; register by Feb 19 at 11:59 PM PT.

Sat 21 Feb 2026

Auburn, California

Website Registration

50 kilometers 36 kilometers Half Marathon 13 kilometers

Always double-check with the organizer's website! This page may contain affiliate links.

Event details

FOURmidable takes place on Saturday, February 21, 2026, in Auburn, CA. The listed location address is 298 Pacific Ave. The event offers multiple trail race distances.

50K
35.5K
1/2 Marathon
13K

Registration for the event closes on Thursday, February 19 at 11:59 PM PT.

Prizes and course records

Prize money for the 2026 50K will be funded by runner donations collected at registration and matched 100% by the organizer up to $3,000. The resulting prize pool for the 50K will be split 50/50 by gender. Each gender share will be distributed with 50% to first place, 30% to second place, and 20% to third place. An additional $500 award will be given to the first runner who breaks the existing 50K course record in each gender. Current 50K course record times are listed as 3:29:31 (male, 2023) and 4:06:58 (female, 2023). Visit the organization's website for the most recent information.

50 km

50k

36 km

35.5k

Half Marathon

1/2 Marathon

13 km

13k