Mount Shasta Tinman Triathlon

SEP
6
2026
Triathlon and duathlon at Lake Siskiyou in Mt. Shasta with a 750 yard swim, 16.6 mile bike and 5K run; proceeds support the Dunsmuir Rotary backpack program.
Sun 6 Sep 2026
Triathlon 740 m 16 3.2 mi Relay 740 m 16 3.2 mi Duathlon 3.2 16.67 3.2 mi

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

Mount Shasta Tinman Triathlon and Duathlon

The Mount Shasta Tinman is a combined triathlon and duathlon held at Lake Siskiyou Camp Resort in Mt. Shasta City, California. The event is a fundraiser for the Dunsmuir Rotary Wildcat Weekender Backpack Food Program.

The race options and official distances are:

  • Triathlon: swim 750 yards, bike 16.6 miles, run 5K
  • Duathlon: run 5K, bike 16.6 miles, run 5K

The event is open to athletes ages 13 and older. Collegiate teams race in a separate wave and do not compete with standard age divisions. Age group divisions for men and women include 14 and under (13 by event date), 15-19, 20-24, 25-29, 30-34, 35-39, 40-44, 45-49, 50-54, 55-59, 60-64, 65-69, and 70+.

Race weekend activities include packet pickup at the Lake Siskiyou Camp Resort Snack Shack on the beach and check-in on race morning at the transition area. The transition area requires a bib for entry; relay bike racks are labeled and body marking is located near the transition area. Aid provisions include water and electrolytes in the transition area and a water station at the run turnaround.

Entry fees vary by registration period. Racers who register before August 10 receive an official event T-shirt and a custom medal. Awards are given for overall winners and for 1st through 3rd places in age groups for the triathlon, plus relay team awards. Visit the organization's website for the most recent information.

5 km
Triathlon Run
5 km
Duathlon Run (start)
5 km
Duathlon Run (finish)
Triathlon Swim
Triathlon Bike
Triathlon
Duathlon Bike
Duathlon
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.