Summer Mileage Challenge
100, 250, 400 & 500 Miles – Relay – Cross Train

May 31 – September 6

The Original & Greatest California
Summer Mileage Challenge Returns


Beat the next price increase when you register by Tuesday, June 8 at 11:59pm PT.


June 7–13
Summer Streaker: Log three days in a row to win CA Coast 500 Merch

Set Your Mileage Goal

With exclusive training plans and a supportive Run Local community, you'll hit your mark and more.

Solo or Relay

Manually add your activity or sync with a variety of GPS devices for easy upload & watch progress on interactive maps.

Cross Training

New for '21 is a Cross Training category for those applying their gym time or surf sessions.

Training Program

Customized for your mileage goal courtesy of Chaski Running Collective

Weekly Challenges

Be motivated each and every week with new challenges and opportunities to win prizes.

Digital Badges

You'll earn major milestone badges as well unlock checkpoint badges and more throughout the summer.

Your Summer Mileage Package

2021 Official Charity Partner

Help us ensure kids in our community have access to the three vital pillars of a healthy childhood — nutrition, education, and physical activity.

Stephen and Ayesha Curry launched Eat. Learn. Play. Foundation to help improve the lives of kids and families in Oakland, the Bay Area, and across the country. ELP focuses their work on fighting to end childhood hunger, ensuring students have access to quality education, and providing safe places for all children to play and be active.

Eat. Learn. Play. works on the front lines to ensure that every child and family has access to the nutritious food they need to thrive every day. In addition, we advocate at the local, state, and federal levels on critical policy issues to positively impact those struggling from hunger. Since the beginning of the pandemic, Eat. Learn. Play. has partnered with local agencies, nonprofits, and restaurants to provide over 15 million meals and 10 million pounds of groceries to Oakland families, and others in need.

Stephen and Ayesha Curry cover all Eat. Learn. Play. operating costs so you can give knowing 100% of your donation support their key focus areas.

To learn more about Eat. Learn. Play., visit

The event is open to anyone, anywhere. Additional fees will apply for international participants. See FAQ page for more information.