Forty-four-year-old mother and endurance runner Amber Weibel just set a new female record for running the 173-mile Tahoe Rim Trail: 49 hours, 39 minutes.
Written by Andrew McLemore
Endurance events like ultramarathons and adventure racing test the limits of human performance. Get inspired, train, and gear up for these growing sports.
Get adventure news and gear reviews in your inbox!