Lake Chabot Trail 50K

  • Saturday, November 7, 2026
  • Castro Valley, California
  • Ultramarathon

2026 at a glance

  1. Race day
  2. Results posted
Last race
Nov 7, 2026
Saturday
Distance
50 km
Ultramarathon
Latest results
2026

Quick facts

  • Marathon route plus an 8K loop
  • Custom coaster for finishers
  • 13-mile cutoff at 3:15
  • 8.5 hour overall limit

Course

Runners complete the marathon route, two laps of the pink loop, then finish with the yellow 8K loop. The surface is about half dirt road and a third asphalt, and the 50K cutoff is 3 hours 15 minutes at 13 miles.

Race-day weather

November weather around Lake Chabot tends to be cool and clear, with occasional rain on the open hills.

About the race

The 50K is the longest distance at the fall Lake Chabot race, starting at 8:30 a.m. with the marathon and 30K. Along with a custom medal, 50K finishers take home a custom coaster.

Dates and results by year