Sydney McLaughlin-Levrone became the first woman in nearly 40 years to break the 48-second barrier in the 400 meters. She won ...

As part of his custom, Bobby Kersee ducked into a taxi and was returning to the hotel by the time the 400-meter race at world championships was beginning. He's never been one to watch his star ...

In terms of differences, if you think about VO2 max as the size of your engine, lactate threshold is the size of the gears in ...

Sydney McLaughlin-Levrone became the first woman in nearly 40 years to run the 400 meters in less 48 seconds. She explains ...