As one of the shortest top-flight hurdlers in the world at only 5'8", Jackson says he’s had to put a premium on strength to handle the 10 hurdles in the 400 meters. “I was born fast,” he says.

Sure it takes speed and stamina to win the 400-meter hurdles. But reigning Olympic champion Sydney McLaughlin-Levrone has plenty of other secret tricks.

EUGENE, Ore. — Sydney McLaughlin-Levrone continued her dominance in the women’s 400 hurdles, setting (another) world record Sunday at Hayward Field in the U.S. Olympic track and field trials ...

Between stride pattern, touchdown time, flat speed, it’s always just trying to improve those things. There’s no such thing as a perfect race, but the closer and closer we can get to 49 seconds ...