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

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 starting and finishing at Chabot Space & Sciences Center, featuring single-track trails, steep climbs including the Woodmonster, staggered handicap starts and a team competition.

A community Independence Day event at Sycamore Grove Park featuring a flat 5K on mixed paved and dirt trails and a 400 meter kids run for ages 10 and under. T shirts are included with race fees.

Map based 5K and 10K adventure starting at Ghirardelli Square. Teams of one to five navigate custom maps to tag checkpoints, then gather afterward for snacks and drinks in a rain or shine event.

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