THE CHALLENGE

Take the Virtual San Diego-Mammoth Challenge by completing both virtual half marathons in the same calendar year – and earn an extra large spinner medal!

20785_challenge_mammoth_mock-up
The landscapes of both races are on one side...and max elevations are on the other!

CHALLENGE REGISTRATION & FEES

Note: Whether you purchased the Challenge upgrade during registration or purchase each race separately in our Store, you will automatically be entered into the Challenge.  Your 2020 Challenge Spinner Medal will be shipped along with your race packet.

Drop Us A Note

Have a question you can't find the answer to? We'd love to help!

Not readable? Change text. captcha txt