Lake Chabot Trail Run

Castro Valley, United States • 7 Nov 2026

Trail Running at Lake Chabot Regional Park

The Lake Chabot Trail Run takes place in Castro Valley, California, with the course starting at the Lake Chabot Regional Park Marina. The routes travel around the reservoir and throughout the surrounding hills. Participants run on trails measured for accuracy using a surveyor's measuring wheel.

The event offers several distances to accommodate different preferences:

  • 50K trail race
  • Marathon (26.2 miles) trail race
  • 30K trail race
  • Half Marathon (13.1 miles) trail race
  • 8K (4.8 miles) trail race
  • 5K (3.1 miles) road race
  • 2 miles road race
  • 50 yard dash for children aged 6 and younger

The 50 yard dash for children is a free event. Registration for the various distances opens in late 2025 and closes approximately one week before the event date, though registration for the shorter 2 mile race and the children's dash remains open until the day of the event. The course is designed to be accessible for those participating in a trail race for the first time. Visit the organization's website for the most recent information.

Race information

50 km
50k
26 mi
Marathon
30 km
30k
13 mi
Half Marathon
5 mi
3 mi
Coastal Testing
Kid's Run (6yo & Younger, 50yd Dash) - Free!
Visit the organization's website for the most recent information.
Trail runs nearby

Dirt Circus in San Francisco is a free community festival by UltraSignup featuring a social 3.2 mi or 4.5 mi group run, an expo with brand vendors, food, and a raffle, plus local partners and limited on-site parking.

A monthly community meetup in Richmond offering a conversational group hike or an optional faster trail run, organized by FIERCE Advocates with Moving Forward and Richmond Run Club. Events are family friendly and include free parking.

Experience the 42nd annual Lake Chabot Trail Challenge featuring a scenic half marathon loop and a paved 5K run. Enjoy views of the San Francisco Bay and Mt Diablo while competing for medals on chip timed courses.

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.

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