Mexico City Marathon Opens Investigation After Cheating Claims
In previous years, thousands of runners have been disqualified for course cutting. Runners are under scrutiny again.
How Fast Is Eliud Kipchoge? This Treadmill Keeps His Pace
Kipchoge, who will run his first Boston Marathon on Monday, holds the world record for 26.2 miles. This is what happens when mere mortals try to keep his pace.