Eliud Kipchoge, the only man to ever run a marathon in under two hours, is in town for next week’s Boston Marathon. In the runup to the race, reporters will no doubt ask him about whether he is worried about any particular competitor. He will predictably reply that he is not - but that he has to focus on his own fitness and his own decisions in running the race. As with all individual sports, the keys to success or failure lie largely in the athlete’s own hands.
