Old Mill Run 10K

APR
18
2026
Join the 45th Annual Old Mill Run at Columbia State Park. This historic community event features a 10K run, 2-mile races, and kids' events with cash prizes for top 10K finishers.
Sat 18 Apr 2026
10 kilometers

Always double-check with the organizer's website! This page may contain affiliate links.

Event Overview

The 45th Annual Old Mill Run takes place in Columbia, California, at Columbia State Park. This long-standing event supports local charitable initiatives, specifically benefiting the Tuolumne County Community Christmas Eve Dinner and The Wings Fund. Participants can choose from several different formats involving various distances and age categories.

Race Categories

The event includes a variety of timed and non-timed options:

  • Kids Mini Mill: For participants aged 6 and under.
  • Kids Mill: For participants aged 7 to 12.
  • 2-Mile Run: A timed running event.
  • 10K Run: A timed running event.
  • 2-Mile Fun Walk: A walking option with a shorter 1-mile alternative available.

Registration and Prizes

Registration is divided into youth and adult tiers based on age. Entry fees apply for those aged 12 and under, with a separate rate for those 13 and older. Participants who register by April 1, 2026, receive a race t-shirt. On-site registration is available on the morning of the event.

The 10K Run features financial incentives for top performers. A cash prize of $250 is awarded to the first-place male and female finishers. An additional $250 prize is available if a course record is broken during the competition. Visit the organization's website for the most recent information.

10 km
10k Run
2-Mile Fun Walk
2-Mile Run
Kids Mini Mill
Kids Mill