The American women’s 4x400 relay team was disqualified from the preliminary round at world championships after their third and fourth runners in the four-lap race bungled the baton exchange.

Allyson Felix came out of a brief retirement to help the women's 4x400 relay make the final at world championships.

Sydney McLaughlin shattered her world record by a whopping 0.73 seconds, blazing through the 400-meter hurdles in 50.68 seconds for her first title at world championships.

Allyson Felix hasn’t run her last race after all.

Sydney McLaughlin coolly cruised through her semifinal heat of the 400-meter hurdles on a steamy night at the track.

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

Allyson Felix was named to her 10th world championships team, where she will have a chance to run in the mixed relay event and add to her record medal collection.

Over nine days at the near-empty Olympic Stadium, the women of track and field delivered a memorable show.

Allyson Felix has won her 11th Olympic medal by combining with her American teammates to finish the 4x400-meter relay in 3 minutes, 16.85 seconds for a runaway victory.

Day 15 of the Tokyo Games will feature the American women going for gold in basketball, volleyball and water polo.

Sydney McLaughlin of the United States broke her world record Wednesday and won the Olympic 400-meter-hurdles gold.

Simone Biles will at last return to Olympic competition Tuesday on Day 11 of the Tokyo Games.

The Jamaican sprinter and her Olympic-record time captured everyone’s attention.

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

Caeleb Dressel is expected to be the star of Day 7 at the Tokyo Games as he seeks his third gold medal in Friday night coverage of the Olympics.

Allyson Felix is headed to her fifth Olympics.

Sydney McLaughlin set a world record in the 400-meter hurdles at the U.S. track and field trials, running the event in 51.90 seconds.

Noah Lyles won the 200 meters at the U.S. track and field trials, earning a spot on the Olympic team.

Hurdler Sydney McLaughlin’s knee was bloody.