California · 50K
The Big Alta
The Big Alta is a 50K event held in Marinwood, California. Its next confirmed date is Friday, March 19, 2027. About 350 runners take part across all distances.
- Race day
- March 19, 2027
- Location
- Marinwood, CA
- Field size
- ~350 runners
Race details
- Date
- Friday, March 19, 2027
- Location
- Marinwood, California
- Distances
- 50K
- Field size
- About 350 runners
- Course
- 6700 ft gain
- Registration
- ultrasignup.com
- Official website
- daybreakracing.com
Registration, course & weather
- Registration status
- Open
- Start time
- 7:00 AM PDT
- Course profile — 50K
- Loop course; Trail surface; 6700 ft gain, 6700 ft loss (estimated from third-party elevation data)
- Course profile — 28K
- Loop course; Trail surface; 3900 ft gain, 3900 ft loss (estimated from third-party elevation data)
- Course profile — 100K
- Point-to-point course; Trail surface; 12750 ft gain, 12700 ft loss (estimated from third-party elevation data)
About the The Big Alta
The Big Alta in Marinwood, CA.
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The Big Alta: common questions
- When is the The Big Alta?
- The next confirmed date is Friday, March 19, 2027.
- Where is the The Big Alta held?
- In Marinwood, California.
- What distances does the The Big Alta offer?
- 50K.
- How many people run the The Big Alta?
- About 350 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 The Big Alta?
- Registration is handled by the organiser at ultrasignup.com. Entry fees, caps and deadlines are set there.
- Is registration open for the The Big Alta?
- Yes — registration is open. $205 (from daybreakracing.com, checked October 18, 2026).
- What time does the The Big Alta start?
- 7:00 AM PDT.
Plan this race in RaceRove
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