2025 Lake Chabot Trail Challenge (Half Marathon & 5K)

Event Details

The 2025 Lake Chabot Trail Challenge includes two events: a Half Marathon and a 5K run, both taking place on June 1, 2025.

Race Info

This is the 41st annual Lake Chabot Trail Challenge, known for its challenging and picturesque trails. The half marathon starts at 8:00 AM and the 5K at 8:30 AM.

Race Course

The Half Marathon course is a scenic, hilly loop primarily on dirt fire roads with stunning views of Lake Chabot and surrounding landscapes. The time limit for the half marathon is 3.5 hours. The 5K is an out and back route featuring gentle hills and mostly paved surfaces.

Registration Fees

• Half Marathon: $65 (Price increases after May 31, 2025)
• 5K Run: $45 (Price increases after May 31, 2025)

Location

The event will be held at 17404 Lake Chabot Rd, Castro Valley, CA 94546.

Awards

All finishers will receive medals, with additional prizes for top finishers in each age division.

Contact

For questions, please reach out to Rachel Lunt.