Chamna Chase
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Event details
The Chamna Chase is scheduled for Saturday, October 25, 2025, at Chamna Natural Preserve in Richland, WA, near 1200 Carrier Road. Registration closes on October 21, 2025.
Distances:
- 1/2 Marathon
- 10K
- 6K
Course and event services
The half marathon is a double out-and-back with a loop in the middle. The 10K follows the first out-and-back and the loop used by the half marathon. The 6K is a large loop. Courses use as much dirt trail as possible, with occasional rocks; the half marathon and 10K include some pavement. The course will be marked with fluorescent tape and course maps will be emailed to entrants before race day.
Race T-shirts are available for purchase; ordering by September 15 is recommended to allow time for printing. Awards and snacks will be provided for entrants after the race. Special prizes from sponsors may be given. Halloween costumes are encouraged. Dogs are allowed on course but must be on a leash. Visit the organization's website for the most recent information.