SHERICKA JACKSON

The U.S. women pulled a shocking upset in the 4-by-100 relay at world championships while the men finished second after a sloppy baton exchange that has become a ritual for that star-crossed team.

For the U.S. women’s relay team, this was a shock. The women pulled a stunner over Jamaica in the 4x100 relay at world championships Saturday, while the favored men finished second after the latest sloppy baton exchange in what has been a ritual since before anyone on this team was born. Bracy fell behind in the anchor leg after twice reaching back and whiffing on the exchange from Elijah Hall, who went tumbling to the ground after he finally got the stick into his teammate's hand.

Jamaica's Shericka Jackson is now a world champion after a mistake led to an early exit at the Tokyo Games.

Jamaica's Shericka Jackson can finally go watch the replay. The one of the race where she gave away her chance to be an Olympic champion. Jackson was among the medal favorites last year in Tokyo, but a miscalculation midway through her preliminary heat caused her to slow down.

British 1,500-meter champion Jake Wightman was in disbelief after he crossed the finish line.

Noah Lyles celebrated his 25th birthday by running the fastest time in 200-meter qualifying at world championships, a 19.98-second romp that he punctuated by playfully wagging his finger at the six other sprinters straggling behind.

Allyson Felix has “no regrets” after a seventh-place finish in the 200 meters of what was likely her final Diamond League meet.

Sha’Carri Richardson is set to compete again after missing the Tokyo Olympics because of a positive marijuana test.

Two 18-year-old Namibian runners threw track and field's contentious testosterone issue back into the Olympic spotlight Monday, when they blazed into the women's 200-meter final in Tokyo just weeks after being barred from the 400-meter race.

There were no such problems for her two compatriots in the 100m clean sweep as Elaine Thompson-Herah and Shelly-Ann Fraser-Pryce advanced safely through.

Jamaica's Elaine Thompson-Herah obliterated the Olympic record with a blistering 10.61 to defend her title from Rio.

Elaine Thompson-Herah broke the 33-year-old Olympic record set in the Seoul Games, all while Team Jamaica claimed all three spots on the podium.

Jamaican women have now won the last four Olympic golds in the 100m.

Elaine Thompson-Herah broke Florence Griffith Joyner’s 33-year-old Olympic record in the women’s 100 meters.