Mount Shasta Tinman Triathlon

SEP
6
2026
A sprint-distance triathlon at Lake Siskiyou near Mount Shasta featuring a 740 yard swim, a 16 mile bike and a 3.2 mile run. A portion of registration proceeds supports the Dunsmuir Rotary Club and Wildcat Weekender.
Sun 6 Sep 2026
Triathlon Sprint Run Duathlon Total Run (3.2mi...

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

Mount Shasta Tinman Triathlon

The Mount Shasta Tinman Triathlon is an established sprint multisport event held at Lake Siskiyou near Mount Shasta, California. The event supports local food programs: a portion of registration proceeds is donated to the Dunsmuir Rotary Club to assist Wildcat Weekender in providing meals to children on weekends.

Course and format details include the following distances:

  • Swim 740 yards
  • Bike 16 miles
  • Run 3.2 miles
  • Duathlon format: Run 3.2 miles, Bike 16.67 miles, Run 3.2 miles

The swim starts at the Lake Siskiyou Beach and Splash Zone. The run follows a trail east from the beach along the water. The bike course is defined in course maps provided by the organizer.

The event takes place at Lake Siskiyou Camp Resort, located about three miles southwest of the central Mount Shasta exit on Interstate 5. Categories listed for the event include individual sprint triathlon, individual duathlon, collegiate teams, relay sprint triathlon, and relay duathlon. The organizer notes that a t-shirt is not guaranteed for registrations completed after August 10. Visit the organization's website for the most recent information.

6 mi
Duathlon Total Run (3.2mi + 3.2mi)
3 mi
Triathlon Sprint Run
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.