Chamna Chase

Richland, United States • 24 Oct 2026

Chamna Chase - Richland, WA

Chamna Chase is a running event held in the Chamna Natural Preserve in Richland, WA. The event offers the following distances:

  • Half marathon
  • 10K
  • 6K

The half marathon follows a double out and back with a loop in the middle. The 10K follows the first out and back plus the loop used by the half marathon. The 6K is a large loop. Courses use as much dirt trail as possible, with some rocky sections; the half marathon and 10K include portions of pavement. The course will be marked with fluorescent tape and course maps will be emailed to entrants as race day approaches.

Halloween costumes are strongly encouraged and there may be prizes for the best costumes. Race T-shirts are available for purchase with registration; ordering by September 15 ensures time for printing. Awards and snacks are provided for entrants after the race, and additional prizes from sponsors may be awarded. Dogs are allowed on the course but must be kept on a leash. Visit the organization's website for the most recent information.

Race information

Half Marathon
1/2 Marathon
10 km
10k
6 km
Visit the organization's website for the most recent information.
Trail runs nearby

Trail 5K and 10K plus a free paved Family 1 Mile at West Park in Umatilla, OR. The 10K crosses the Columbia River into Washington and back while proceeds support the Providence Cancer Institute and a post race celebration follows.

Run through the scenic gravel roads of Jump off Joe Mountain near Kennewick. Choose from marathon, half marathon, or 10k distances and enjoy summit views in this low key community event.

A backyard ultra in Richland, WA on September 12, 2026. Runners repeat a 4.16667 mile trail loop each hour until one person completes a final solo lap; those who reach 100 miles receive a custom belt buckle.

Laliik is an annual trail race on Rattlesnake Mountain organized by Runners of the Sage. It offers several distance options and raises funds for the Rattlesnake Slope Preserve, including support for year round porta potties at the trailhead..

Add Event
Help us complete the calendar!
  • Distance is at least 5 km
  • Event has a website or Facebook page
Website
Optional: Please provide your e-mail address if we may contact you.
Report a change
We will only update the data if the information is also on the website.