California · 50K · 30K · 1/2 Marathon
Chabot/Redtail Ridge Trail Run
Chabot/Redtail Ridge Trail Run is a 50K, 30K, 1/2 Marathon, 10K and 5K event held in Castro Valley, California. Its next confirmed date is Saturday, February 20, 2027. About 500 runners take part across all distances.
- Race day
- February 20, 2027
- Location
- Castro Valley, CA
- Field size
- ~500 runners
Race details
- Date
- Saturday, February 20, 2027
- Location
- Castro Valley, California
- Distances
- 50K, 30K, 1/2 Marathon, 10K, 5K
- Field size
- About 500 runners
- Course
- 4800 ft gain
- Registration
- ultrasignup.com
- Official website
- insidetrail.com
Registration, course & weather
- Registration status
- Open
- Start time
- 8:30 AM PST
- Course profile — 50K
- Loop course; Mostly trail, some road; 4800 ft gain (estimated from third-party elevation data)
- Course profile — 35K
- Loop course; Mostly trail, some road; 3300 ft gain (estimated from third-party elevation data)
- Course profile — Half Marathon
- Loop course; Mostly trail, some road; 1750 ft gain (estimated from third-party elevation data)
- Course profile — 10K
- Loop course; Mostly trail, some road; 700 ft gain (estimated from third-party elevation data)
- Course profile — 5K
- Loop course; Mostly trail, some road; 160 ft gain (estimated from third-party elevation data)
About the Chabot/Redtail Ridge Trail Run
Chabot/Redtail Ridge Trail Run in Castro Valley, CA.
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Chabot/Redtail Ridge Trail Run: common questions
- When is the Chabot/Redtail Ridge Trail Run?
- The next confirmed date is Saturday, February 20, 2027.
- Where is the Chabot/Redtail Ridge Trail Run held?
- In Castro Valley, California.
- What distances does the Chabot/Redtail Ridge Trail Run offer?
- 50K, 30K, 1/2 Marathon, 10K and 5K.
- How many people run the Chabot/Redtail Ridge Trail Run?
- About 500 runners across all of its distances. That figure is an estimate of the field size, not an entry cap.
- How do I register for the Chabot/Redtail Ridge Trail Run?
- Registration is handled by the organiser at ultrasignup.com. Entry fees, caps and deadlines are set there.
- Is registration open for the Chabot/Redtail Ridge Trail Run?
- Yes — registration is open.
- What time does the Chabot/Redtail Ridge Trail Run start?
- 8:30 AM PST.
Plan this race in RaceRove
Save it to your plan, compare it with other races, check typical race-day weather and track your 50-state progress in the interactive app.