TAKE THE CHALLENGE
Finishers of both the 2019 San Diego Half Marathon and 2019 Mammoth Half Marathon will receive an extra-large “San Diego-Mammoth Challenge” spinner medal. San Diego boasts over 70 miles of coastline, an average daily temperature of 70.5 ºF (21 ºC) and world-class attractions such as SeaWorld, San Diego Zoo, Safari Park, and Legoland California!
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
The possibilities that lie ahead are endless. ✨ 🏔 Join us June 23 for the 7th annual Mammoth Half Marathon & 5K! #mammothhalf
04.19.19
Ran the half last year! It was so cold 🥶 but one of my favorite race courses! Love it! Great race!
Here's a tip - buy cheap warm ups to wear to keep you warm then toss them on mile 1. Its cold up there on Horseshoe Lake. Beautiful coarse!!
I will be there! Haven't decided if I will run the half or race the 5k yet but I will be there and can't wait!
Jackie Valdovinos
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
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
Save on both the 2018/2019 Mammoth Mountain adult lift ticket and a 2019 Mammoth Half Marathon entry!
COUNTDOWN TO RACE DAY
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