MISSION INN FOUNDATION RUN
Oct 18Riverside, CAHalf Marathon, 10K +1
Half Marathon, 4 weeks before race day, 16 mi away, registration open
Aid stations, cutoffs and pacing in one plan, with the timeline your crew follows. Crew invites and race-day updates come with a Race Pass.
Build my planA 21-mile trail race in the Crafton Hills above Yucaipa with 4,370 feet of vertical gain, starting and finishing at the Crafton Hills College track.
Registration closes
Feb 16, 2026
Race day
Nov 14, 2026
Registration openings and major changes, like a new date or a cancellation.
Can't race, or need an entry? Post it here so nobody has to ask if it's still available.
Oct 18Riverside, CAHalf Marathon, 10K +1
Half Marathon, 4 weeks before race day, 16 mi away, registration open
Oct 10Los Angeles, CAHalf Marathon, 10K +2
Half Marathon, 5 weeks before race day, 65 mi away, registration open
Oct 10Los Angeles, CAHalf Marathon, 10K +2
Half Marathon, 5 weeks before race day, 65 mi away, registration open
Oct 17Julian, CA50K, Marathon +1
Half Marathon, 4 weeks before race day, 79 mi away, registration open
Straight-line distance
Nov 14Trabuco Canyon, CA8 hr, 6 hr +1
39 mi from Zanja Peak Endurance Challenge, the same weekend as Zanja Peak Endurance Challenge, registration open
Oct 24Yucaipa, CA8 hr, 6K
6 mi from Zanja Peak Endurance Challenge, 3 weeks before Zanja Peak Endurance Challenge, registration open
Nov 28Hemet, CA24 hr, 12 hr +4
25 mi from Zanja Peak Endurance Challenge, 2 weeks after Zanja Peak Endurance Challenge, registration open
Nov 7Silverado, CAMarathon, 25K +2
38 mi from Zanja Peak Endurance Challenge, 1 week before Zanja Peak Endurance Challenge, registration open
Straight-line distance
Oct 8Big Bear Lake, CA100 mi, 100K +2
Oct 10Foresthill, CA50 mi, 25 mi
Oct 10Granite Bay, CA11.45 mi, 6.6 mi
Oct 10Clayton, CA12 mi
Oct 10Julian, CA
Oct 10Dinuba, CA12 hr
Oct 10Brea, CA10K, 5K
Oct 10San Francisco, CAMarathon
Oct 10Auburn, CA50K, 13 mi +1
Oct 10Silverado, CA50 mi, 50K +1
Oct 11Susanville, CA50K, Marathon +2
Oct 11Nevada City, CAHalf Marathon, 10K +1
Oct 24Yucaipa, CA8 hr, 6K
Dec 11Yucaipa, CABackyard Ultra
Oct 28Perris, CA200 mi
Jan 29, 2027Perris, CA24 hr
Apr 10, 2027San Jacinto, CAMarathon, Half Marathon +1
Apr 30, 2027Big Bear City, CA24 hr
Nov 28Hemet, CA24 hr, 12 hr +4
Oct 24Wrightwood, CA5K
Nov 7Silverado, CAMarathon, 25K +2
Jul 24, 2027Modjeska Canyon, CA50K, 30K +1
Nov 1Mount Laguna, CAMarathon
Nov 7Brea, CA50K, 30K
Nov 7Tarzana, CA10K, 5K
Nov 8San Diego, CA6 hr
Nov 14Avalon, CAHalf Marathon, 10K
Nov 14Trabuco Canyon, CA8 hr, 6 hr +1
Nov 14San Diego, CABackyard Ultra
Build your aid station plan, organize your crew, and dial in your nutrition strategy. Everything you need to finish strong.
Build my planAre you the race director for Zanja Peak Endurance Challenge?
Claim this race to manage registration, volunteers, and race day.