Tri for Fun Triathlon

AUG
9
2026
Experience a classic California multisport event at Rancho Seco Park featuring a lake swim, road bike, and trail run. Choose between triathlon and duathlon formats for individuals or relay teams in this long running summer series.
Sun 9 Aug 2026
Du for Fun Duathlon Run 1 Du for Fun Duathlon Run 2 Tri for Fun Triathlon

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

Event Overview

The Tri for Fun Triathlon #3 takes place at Rancho Seco Park in Herald, California. This event is part of a series that has been held for 43 years, originally established in 1983. The August race features both triathlon and duathlon formats, with options for individual participants and relay teams. The course utilizes the natural landscape of the park, including the lake and surrounding trails.

Distance Options

Participants can choose from the following event formats:

  • TRI for FUN Triathlon: 0.5 mile swim, 16 mile bike ride, and 3 mile run.
  • DU for FUN Duathlon: 1 mile run, 16 mile bike ride, and 3 mile run.

Course Details

The triathlon begins with a swim in the lake at Rancho Seco Park. This is followed by a bike segment held on local roads. The final stage is a 3 mile run conducted on dirt trails. The duathlon follows a similar structure but replaces the swim with an initial 1 mile run before transitioning to the road bike course.

Participant Information

All finishers receive post-race refreshments and a commemorative item. Awards are presented to the top three finishers in each 10-year age group for the triathlon. Relay teams compete in three divisions: Coed, Female, and Male, with awards for the top three teams in each category.

The event venue at Rancho Seco Park requires a $15 vehicle entrance fee. Packet pick up is available at the race site on the morning of the event. Commemorative race t-shirts are available as an optional purchase. The event is held rain or shine. Visit the organization's website for the most recent information.

3 mi
Du for Fun Duathlon Run 2
Du for Fun Duathlon Run 1
Tri for Fun Triathlon