Lake Chabot Trail Run
APR
11
2026
Trail races at Lake Chabot Regional Park in Castro Valley range from a 50 yard kids dash to a 50K ultradistance. The routes circle the reservoir and surrounding hills and distances were measured with a Rolatape surveyor's wheel.
Sat 11 Apr 2026
50 kilometers
26 miles
30 kilometers
13 miles
8 kilometers
5 kilometers
Always double-check with the organizer's website! This page may contain affiliate links.
SPASM Lake Chabot Trail Run
The event takes place at Lake Chabot Regional Park - Marina in Castro Valley, California. The course starts at the Marina and travels around the Lake Chabot reservoir and the surrounding hills. Distances on the course were measured with a Rolatape surveyor's measuring wheel.
The event offers multiple trail and running distances, including:
- 5 Miles (8K)
- 13.1 Miles (Half Marathon)
- 17.9 Miles (30K)
- 26.2 Miles (Marathon)
- 31 Miles (50K)
- 50 Yards (Kid's Run for children 6 years and younger)
- 2 Miles (Coastal Testing)
- 3.1 Miles (5K)
Registration for the events opens on July 19, 2025. Most race registrations close on April 5, 2026, while some events remain open until April 11, 2026. Entry fees vary by distance and range from $0.00 to $90.00. Visit the organization's website for the most recent information.
50 km
50k
26 mi
Marathon
30 km
30k
13 mi
Half Marathon
8 km
5 km
