Are You Ready to Play?

12 Challenges – Half Mile to Half Marathon

Supporting Wildfire Education in Partnership with Leave No Trace

Welcome to the California Challenge

Open to anyone, anywhere, and at any start time in 2021, challenge yourself, your colleagues, family & friends to run, walk or hike your way through 12 challenges ranging in distances from Half Mile to Half Marathon.

Choose Your Goal – We'll Help You Accomplish It.

When you register today, we'll send you a free, simple step-by-step training guide for either a 5K, 10K or Half Marathon, each incorporating everything you'll love about the California Challenge!

Challenge yourself to complete 12 distinct distances in 2021

Improve your time throughout the year by repeating each distance as much as you'd like

Earn digital badges and rewards throughout the year with fun mini-challenges

Manually add your activity or sync with a variety of GPS devices for easy upload

Create a team, engage one another and see how you stack up against other teams.

Each region's distance is set in a California State Park. Learn about our State Parks as you progress and be inspired to plan your next adventure.


Half Mile • 1 Mile • 2 Mile • 4K • 5K • 4 Mile • 5 Mile • 10K • 12K • 8 Mile • 10 Mile • Half Marathon

Together we can ensure that none of us have to alter our outdoor plans due to wildfire ever again.

The California Challenge is proud to support Leave No Trace’s wildfire education initiatives in the Golden State.