The Americans had a spectacular day at the world championships by winning nine medals on home turf.

Shelly-Ann Fraser-Pryce sped her way back to the top of the sprint game, winning her fifth world title at 100 meters by leading a Jamaican sweep and knocking off the reigning Olympic champion, Elaine Thompson-Herah.

Fred Kerley led the first American sweep of the 100 meters at the worlds in 31 years, barely edging teammates Marvin Bracy and Trayvon Bromell to stamp a red-white-and-blue exclamation point on the first championships ever held in the United States.

Olympic gold medalist Elaine Thompson-Herah of Jamaica held off American Sha’Carri Richardson in the 100 meters at a rainy Prefontaine Classic on Saturday.

Marcell Jacobs already won another gold medal at the world indoors.

A slow exchange left the American 4x100-meter relay team out of medal contention at the Olympics.

The Texas-born sprinter becomes the first Olympic men's 100m gold medalist not representing the United States or Jamaica since Canada's Donovan Bailey in 1996.

Caeleb Dressel and Emma McKeon earned milestone medals at the Olympic pool before Italian runner Marcell Jacobs was the surprising winner of the race to determine the fastest man in the world.

Usain Bolt has retired so there will be a new fastest man at the Olympics for the first time since 2008 when the men’s 100-meter dash is held on Day 9 of the Tokyo Games.

Bromell finished a ragged fourth in the second heat, clocking 10.05 seconds - with only the first three progressing automatically.

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

Sprinter Noah Lyles raised a gloved first before the 100-meter final at the Olympic track and field trials.

Sha’Carri Richardson breezed to a win in the 100 meters at the U.S. Olympic track and field trials to secure her spot at the Tokyo Games.

New Hayward, must-see events, rivalries, who's missing, the collegiate class and more. Here's what you need to know about the U.S. Olympic Track & Field Trials.