The Mammoth Half Marathon is a world-class event with a breathtaking route to carry runners over a scenic course through the picturesque high sierras, finishing in downtown Mammoth Lakes. The route, starting at nearly 9,000 feet, is downhill and fast.
The Mammoth Half Marathon is a premier race event and the 2nd leg of the San Diego – Mammoth Challenge. The race is organized by the San Diego Half Marathon team. 100% of the net proceeds from the Mammoth Half Marathon & 5K event will go towards community service projects and select charitable causes in Mammoth Lakes.
The Mammoth 5K is a scenic 3.1-mile race through downtown Mammoth Lakes, designed for all ages & abilities to enjoy!
Learn more or register!
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