Tri for Fun Triathlon

JUN
7
2026
Experience a classic California multisport event at Rancho Seco Park featuring a lake swim, road bike, and trail run. Join the 43rd season of this historic series with triathlon, duathlon, and relay options for all participants.
Sun 7 Jun 2026
Tri for Fun Triathlon (3... Du for Fun Duathlon (1 Mi...

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TRI for FUN Triathlon #1

The TRI for FUN Triathlon series returns for its 43rd year at Rancho Seco Park in Herald, California. This long-standing event, which originated in 1983, is held at a venue featuring a lake, road courses, and dirt trails. Participants can choose between triathlon and duathlon formats, with options for individual entry, relay teams, or a multi-race series.

The event offers two primary multisport formats:

  • TRI for FUN Triathlon: A 0.5 mile lake swim, 16 mile road bike, and 3 mile dirt trail run.
  • DU for FUN Duathlon: A 1 mile run, 16 mile road bike, and 3 mile dirt trail run.

Relay teams are available for the triathlon format, with divisions for male, female, and coed groups. All participants receive a finisher medal and access to post-race refreshments. Awards are presented to the top three finishers in 10-year age groups for the triathlon, and to the top three teams in each relay division.

The race site is located within Rancho Seco Park, and there is a vehicle entrance fee of $15. Race packets are distributed on the morning of the event at the park. Participants should note that vehicle entry is restricted for a 30-minute window prior to the start due to another scheduled activity on the access road. Visit the organization's website for the most recent information.

4 mi
Du for Fun Duathlon (1 Mile Run + 3 Mile Run)
3 mi
Tri for Fun Triathlon (3 Mile Run)

Events nearby

Experience a sanctioned multisport event at Rancho Seco Park featuring Olympic distance triathlon and aquabike races. Join a competitive series in Herald with options for individual athletes, relay teams, and super sprint participants.
Experience the TRI for Real Triathlon at Rancho Seco Park featuring Olympic distance, Aquabike, and Super Sprint races. Join individual or relay categories in this USA Triathlon sanctioned series in Herald California.
Experience the 43rd year of the TRI for FUN series at Rancho Seco Park. Choose between triathlon and duathlon formats featuring a lake swim, road bike course, and dirt trail run in Herald.
Experience a USAT sanctioned triathlon at Rancho Seco Park featuring Olympic distances, Aquabike, and Super Sprint options. Join individual or relay categories and compete for series championship awards in beautiful Herald.