TAKE THE CHALLENGE

Participants of both the 2020 San Diego Half Marathon and 2020 Mammoth Half Marathon will receive an extra-large “San Diego-Mammoth Challenge” spinner medal.

DEENA KASTOR’S 2018 MAMMOTH HALF

Watch how Olympian and Mammoth Lakes local, Deena Kastor, cruised to victory at the 2018 Mammoth Half Marathon.

EXPERIENCE THE RACE

LATEST NEWS

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Take the 2020 Virtual San Diego-Mammoth Challenge before the end of the year to earn both beautiful finisher medals - plus our exclusive 4 Spinner Challenge Medal!  

#keeponrunning #SDHALF #MammothHalf

To qualify, complete the San Diego and Mammoth Half Marathons in the same calendar year. 

Both events are now available in our Epic Run Store by visiting: https://shop.epic.run/collections/epic-events - and everything ships within 48 hours!!  (To participate, type CHALLENGE in the notes at checkout. Even if you registered for each race separately or at different times, you will still qualify.)

Take the 2020 Virtual "San Diego-Mammoth" Challenge before the end of the year to earn both beautiful finisher medals - plus our exclusive 4" Spinner Challenge Medal!

#keeponrunning #SDHALF #MammothHalf

To qualify, complete the San Diego and Mammoth Half Marathons in the same calendar year.

Both events are now available in our Epic Run Store by visiting: shop.epic.run/collections/epic-events - and everything ships within 48 hours!! (To participate, type "CHALLENGE" in the notes at checkout. Even if you registered for each race separately or at different times, you will still qualify.)
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09.30.20

OUR UNIQUE VISION

As a nonprofit 501(c)(3), the Mammoth Half Marathon benefits charity partners and community service projects, with 100% of our net proceeds going to local causes.

2019 SUPPORTING SPONSORS

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VISIT BEAUTIFUL MAMMOTH LAKES

Elite runners, including current and former Olympians, take advantage of training in Mammoth’s picturesque scenery and high altitude to prepare for their season.  Follow in the footsteps of world-class elite runners and discover the town of Mammoth Lakes, located in the heart of the California’s Eastern Sierra Mountains!  Mammoth Lakes is home to one of the country’s top ski and snowboarding resorts in the winter and serves as an equally beautiful summer vacation.  Visit Travel & Hotels to book a room at one of our preferred hotels.

RUN + SKI – coming soon!

We offer bundled savings to run + ski if the slopes are still open …so stay tuned!

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Drop Us A Note

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