Kenyan John Korir overcame a tumble near the starting line to win the Boston Marathon on Monday, finishing in two hours four minutes and 45 seconds, while his compatriot Sharon Lokedi denied Hellen Obiri a third straight title in a course record.
As he blazes through the Rio Games aiming for his historic third batch of three sprint gold medals, Jamaica's Usain Bolt has been clear this is his last time on the Olympic track, where he feels he has nothing left to prove.