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 full-day trail event at Almaden Quicksilver County Park on May 2, 2026, offering distances from a kids run to a 50K with marked dirt roads, single-track sections, aid stations, drop bag service at the Hacienda start, and free parking.

Experience the scenery of Tilden Regional Park at the Grizzly Peak Trail Run. Choose from various distances including a 50K and marathon starting from the shores of Lake Anza in Berkeley.

Trail ultramarathons in Almaden Quicksilver County Park on May 9 2026, offering a 100K and a 50K with substantial elevation gain, course maps and GPX files, USATF sanctioning, aid stations, volunteer support, swag and a post race party.

Celebrate the 24th year of this community event in Los Altos Hills. Run or walk through the Westwind Community Barn and Byrne Preserve on hilly 5K, 10K, or 1 mile courses.

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