July 1st - October 9th

Virtual Walk/Run: 200 miles or 105 miles

Bike: 600 mile Challenge
Row/Paddle: 200 mile Challenge

Swim: 40 mile Challenge

A virtual tour of California


3mi, 6mi, 9mi, Half Marathon, Virtual

Saturday, Dec. 3rd

Huddart Park, Woodside

Tails & Trails!! Hike, jog or run through the magical forest with towering redwoods and lush trails at Huddart Park.


5K, 10K, Half, Sirena18 Mile, Virtual

Saturday, April 30th

Fremont, CA

Join us at Quarry Lakes Park for a flat and fun course with the perfect mix of dirt road and paved running path.


Sprint Tri & Du, Olympic Tri, Aquabike

Saturday, Oct. 1st

Capitola, CA

Celebrating it's 17th year! The Mermaid Triathlon & Duathlon is the longest running women's triathlon in California.

Perfect for the 1st time triathlete!


5K, 10K Half Marathon, Youth, Virtual

Sat, Feb. 25th 2022

San Diego, CA


Run along Mission Bay and soak in the sun! The flat course takes you on the running paths along Mission Bay and Fiesta Island.


5K, 10K, Sirena 10 Mile, Virtual

Sunday, Nov. 13th

Crissy Field, San Francisco

Run along the San Francisco Bay and soak in views of the Alcatraz and the Golden Gate. The Sirena10 Mile Run crosses the Golden Gate Bridge!


5K, 10K, Youth Dash, Virtual

Saturday, May 21st

Spokane, WA


Head out from Riverfront Park and onto the Centennial Trail for a scenic run along the Spokane River.