breaking2

Kenya’s Faith Kipyegon, who holds the mile world record at 4:07.64, will try to become the first woman to run sub-4 this summer in Paris

A look at the data that found the ideal candidates to run under two hours for the marathon

In Part 2 of the INEOS 1:59 Challenge documentary on Kipchoge’s preparation for Vienna, his teammates speculate on the factors that will enable him to finally break the 2-hour barrier