Mount Shasta Tinman Triathlon
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Mount Shasta Tinman Triathlon and Duathlon : Event Overview
The Mount Shasta Tinman is a triathlon and duathlon held at Lake Siskiyou Camp Resort in Mt. Shasta City, California, on Labor Day weekend, September 6, 2026. The event offers individual and relay entries and accepts athletes ages 13 and older. Collegiate teams race in a separate wave and do not compete within the listed age divisions.
Distances:
- Triathlon: 750 yard swim, 16.6 mile bike, 5K run.
- Duathlon: 5K run, 16.6 mile bike, 5K run.
Registration is tiered by date. Early entry rates apply through December 31. Regular entry runs from January 1 through July 15. Late entry is available through August 31. Entry categories include individual and relay with different fees for each period.
Event logistics include packet pickup at the Lake Siskiyou campground area and a transition area located near the beach parking lot. Body marking and athlete check-in are organized at the transition area. Entry to the park requires a daily gate fee.
The race supports the Dunsmuir Rotary Wildcat Weekender Backpack Food Program. Awards and apparel details are provided to registered participants; racers who register before August 10 receive an official event T shirt and custom medal. Age groups are listed for competitive awards in the triathlon divisions. Visit the organization's website for the most recent information.
