Thank you for visiting the Mammoth Half Marathon Community Information page. The Mammoth Half Marathon & 5K is a nonprofit 501(c)(3) organization whose net proceeds support community service projects and charities in Mammoth Lakes.
Visit our online Spectator Guide!
To view the notification for road closure and detour information for our 2015 event, please use the following link: Download Notification Now
We’d like to invite you to show your community spirit and cheer on the runners as they travel through Mammoth Lakes – for a course map, please visit: Course. We also invite you to join us on Saturday, June 20th for the FREE Sport, Health, and Fitness Expo at the Village Lodge from 12 pm to 8 pm, and on Sunday, June 21st for the Celebrate Mammoth Lakes Block Party.
Support your community by sponsoring or volunteering for the race:
- To sign up to volunteer, register from our Volunteer page.
- For sponsorship inquires, please email: firstname.lastname@example.org
If you have any further questions about community information, please contact us at: email@example.com