I did it. On Saturday afternoon, a few hours after Eliud Kipchoge ranastunning, historic marathon in two hours and 25 seconds in Monza, Italy - narrowly missing his goal of breaking the two-hour marathon mark for Nike's Breaking2 initiative, but obliterating the current world record and everybody's idea of what is possible in the sport - I ran a half-marathon on the same course in 1:26:52.