Lake Chabot Trail Run

Castro Valley, United States • 24 Apr 2027

SPASM Lake Chabot Trail Run : Castro Valley, CA

The event takes place on April 24, 2027 at Lake Chabot Regional Park - Marina, 17600 Lake Chabot Road, Castro Valley, CA 94546, USA. The course starts at the marina and travels around the Lake Chabot reservoir and surrounding hills. Distances were measured using a Rolatape surveyor's measuring wheel.

The program includes multiple trail race distances and a short kids dash. Most trail events share the same registration window that opens April 22, 2026 and closes April 18, 2027; two short events have registration closing on April 24, 2027. Entry fees vary by distance and some short events are offered without a fee.

Distances offered:

  • 8K - 5 Miles, fee $60.00
  • Half Marathon - 13.1 Miles, fee $70.00
  • 30K - 17.9 Miles, fee $75.00
  • Marathon - 26.2 Miles, fee $80.00
  • 50K - 31 Miles, fee $90.00
  • Kid's Run - 50 Yards, children aged 6 years and younger, free
  • Coastal Testing - 2 Miles, free

The organizer notes the course passes around the reservoir and through nearby hills and provides measured distances for each race. Visit the organization's website for the most recent information.

Race information

31 mi
50k
26 mi
Marathon
18 mi
30k
13 mi
Half Marathon
5 mi
Coastal Testing
Visit the organization's website for the most recent information.
Trail runs nearby

A point-to-point 100-mile ultramarathon from UC Berkeley to Skyline High School in Oakland, featuring about 18,000 ft of elevation across ridgelines, redwood forest and lake trails; the 2026 race is sold out with a waitlist.

Experience a fixed-time event at Crissy Field with stunning views of the Golden Gate Bridge. Run or walk as many laps as you choose in three six or twelve hour blocks as an individual or part of a team.

Live and virtual options at Lake Chabot feature 5K, 10K, and a half marathon with multiple aid stations, on-course nutrition, race apparel and a woodallion, post-race beverages, and a brewfest atmosphere.

A 10-mile trail race in Redwood Regional Park with single-track terrain, a timed 0.8 mile hill climb, age-based handicap starts, limited to 250 runners, and a team competition.

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