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 trail running event at Point Pinole on May 30, 2026, offering a half marathon, 10K and 5K. The original Brazen Racing event welcomes runners and walkers and includes bib pickup, posted results, free photos and volunteer roles.

Experience a technical trail race through the redwood groves of Joaquin Miller and Redwood Regional parks. Choose from multiple distances ranging from an 8K to a 50K ultra marathon on accurately measured courses.

A community 5K and 10K run/walk at Seal Point Park in San Mateo on May 30, 2026, paired with a complimentary Wellness Fair. Race registration includes a t-shirt and finisher medal and team entries are eligible for a prize.

A multi-distance trail event at Calero County Park in San Jose on May 30, 2026, featuring single track, dirt paths and hilly terrain up to 50K, with aid stations, free parking and drop bag support for the 50K.

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