Mammoth Half Marathon & 5K is a premier, one-of-a-kind race and event that celebrates the beauty and uniqueness of Mammoth Lakes while raising money to help local community charities.
The Mammoth Half Marathon & 5K is a premier & breathtaking race event. The race is the 2nd leg of the San Diego - Mammoth Marathon Challenge. Runners who complete both the San Diego Half Marathon & the Mammoth Half Marathon will be awarded a premium San Diego - Mammoth Medal.
The Mammoth Half Marathon & 5K is a premier & breathtaking race event. The race is the 2nd leg of the San Diego - Mammoth Marathon Challenge. Runners who complete both the San Diego Half Marathon & the Mammoth Half Marathon will be awarded a premium San Diego - Mammoth Medal.
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