Leah Bertrand broke an Ohio State record while running in the 100-meter dash during the first round of the NCAA women's track ...

Hitting that elusive 10,000-step mark likely means getting in steps throughout the day, not just in a single walk, but how much time does it actually take?

2008 — Usain Bolt sets the world record in the 100 meters with a time of 9.72 seconds at the Reebok Grand Prix in New York.