No Hands Trail Run
Jan 9, 2027Auburn, CA50K, 35K +2
Half Marathon, 6 weeks before race day, 99 mi away
50K35KHalf Marathon10K5K
Chabot/Redtail Ridge Trail Run
Castro Valley, California
- Days to go
- 137
At a glance
- Date
- Feb 20, 2027
- Location
- Castro Valley, California
- Distances
- 50K, 35K, Half Marathon, 10K, 5K
- Registration
- See ultrasignup.com
- Official site
- insidetrail.com
- Listed from
- UltraSignup
- Last checked
- Oct 4, 2026
Plan this race for free
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 planKey dates
Race day
Feb 20, 2027
Email me updates about Chabot/Redtail Ridge Trail Run
Registration openings and major changes, like a new date or a cancellation.
Entry transfers
Can't race, or need an entry? Post it here so nobody has to ask if it's still available.
Tune-up races
Hacienda Hills Trail Run - Winter
Jan 2, 2027San Jose, CA50K, Marathon +5
Half Marathon, 7 weeks before race day, 29 mi away
Pacifica Foothills Trail Run
Jan 23, 2027Pacifica, CA30K, Half Marathon +1
Half Marathon, 4 weeks before race day, 22 mi away
Straight-line distance
Similar races
The Big Alta
Mar 19, 2027Marinwood, CA50K
Also 50K, 33 mi from Chabot/Redtail Ridge Trail Run, registration open
Quad Dipsea
Nov 28Mill Valley, CA28.4 mi
Also 50K, 28 mi from Chabot/Redtail Ridge Trail Run, registration open
Lake Chabot Trail Run
Nov 7Castro Valley, CA50K, Marathon +4
Also 50K, 2 mi from Chabot/Redtail Ridge Trail Run, registration open
Marin Ultra Challenge
Mar 13, 2027Sausalito, CA50 mi, 50K
Also 50K, 22 mi from Chabot/Redtail Ridge Trail Run
Straight-line distance
More 50K Races in California
All 50K Races in CaliforniaHOKA Kodiak Ultra Marathons by UTMB
Oct 8Big Bear Lake, CA100 mi, 100K +2
Sunset & Cider Trail Races
Oct 10Auburn, CA50K, 13 mi +1
That's No Moon Trail Races
Oct 10Silverado, CA50 mi, 50K +1
Bizz Johnson
Oct 11Susanville, CA50K, Marathon +2
Lake Hodges Trail Festival
Oct 17San Diego, CA50K, 23 mi +4
The Jackalope Lope
Oct 17Redding, CA50K, 20 mi +1
The Peak 50K, Marathon & Half Marathon
Oct 17Julian, CA50K, Marathon +1
Island View - Endurance Run
Oct 24Goleta, CA100 mi, 100K +1
No Name Trail Races
Oct 24Agoura, CA50K, Half Marathon +1
Range of Light Trail Races
Oct 24Bishop, CA50K, 33K +2
Trail Run at Sly Park - Fall
Oct 24Pollock Pines, CA50K, Marathon +5
Caspers Trail Races
Oct 31San Juan Capistrano, CA50K, Marathon +3
Races Near San Francisco
All races near San FranciscoSkyline 50k Endurance Run
Aug 1, 2027Castro Valley, CA50K, 21K
Lake Chabot Trail Run
Nov 7Castro Valley, CA50K, Marathon +4
Oakland Hills Trail Run
Oct 24Oakland, CA35K, Half Marathon +1
Oakland Tech 5km/1 mile Race/Run/Walk Fundraiser
Nov 1Oakland, CA5K, 1 mi
Bay Area 100
Jun 12, 2027Berkeley, CA100 mi
ZombieRunner Quarry Lakes
Nov 14Fremont, CAHalf Marathon, 10K +1
Nomadic 5K Trail Run
Nov 14Walnut Creek, CA
Haunted Corner 5K, 10K Pleasant Hill
Oct 24Pleasant Hill, CA10K, 5K
Mountain Tiger Diablo
Oct 10Clayton, CA12 mi
Holiday Hustle 5K, 10K Livermore
Dec 12Livermore, CA10K, 5K
Hunter S. Thompson Fear & Loathing
Dec 6San Francisco, CA50 mi, 50K
Ruth Anderson Memorial Endurance Run
Oct 10San Francisco, CAMarathon
February Races Nearby
All February racesFort Ord Trail Run
Feb 6, 2027Salinas, CA50K
Jed Smith
Feb 6, 2027Sacramento, CA50 mi, 50K +3
Monterey Ultra
Feb 6, 2027Monterey, CA50 mi
Race planning
Plan Chabot/Redtail Ridge Trail Run with Crewable
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 Chabot/Redtail Ridge Trail Run?
Claim this race to manage registration, volunteers, and race day.