iBorn 25 Dec 1981
Herron came from the marathon and kept its quick, short stride all the way up to multi-day racing. She won the world 100km title in 2015 and Comrades in 2017, the Tarawera trail ultra in New Zealand, and set world bests at 100 miles, 24 hours, 48 hours and six days, several of them since lowered.…