The 24-year-old Texan won her preliminary heat on Friday in 10.88, leading all qualifiers despite a slight stumble at the start, and won her Saturday semi-final in 10.86, the best time of any finalist despite a slow start. She was behind again at the start of the final but quickly made up the time and charged to victory. “Definitely didn’t have the best start, but had a better start than my other rounds,” said Richardson, who won her only prior 100 at May’s Prefontaine Classic in Eugene in 10.83.

After winning last year’s national championship, Richardson declared that “I’m not back, I’m better,” later won the world title and now seems ready to prove her new slogan true at the Paris Games.

In other Saturday results at the US trials, reigning men’s 100m world champion Noah Lyles led all semi-final qualifiers from men’s preliminary heats in 9.92. He cruised to victory in the first of five 100m men’s heats with Christian Coleman, the 2019 100m world champion, second in 9.99.

It’s a redemption run for Lyles, who failed to qualify for the 100m final at the Tokyo Olympics and settled for bronze in a 200m final where he was among the favourites.

“I felt like I just had blown a huge opportunity,” Lyles said. “The more I look back at it, the more I’m like, ‘Wow, if I never had that moment happen, I would have never produced what I’ve done up to now.'”

Lyles knows the pressure is high for success in France even after his world titles in the 100m, 200m and 4x100m relay last year. “I know for people to take notice of me, an Olympic gold medal is needed,” he said. Top five finishers in each of five heats plus the next two fastest runners reached the semi-finals, where Sunday’s finalists will be decided.

Lyles ended any suspense, winning by .08 of a second over Kenny Bednarek in the opening heat with a 0.2m/sec tailwind. He was never going to threaten his season best of 9.85 or his personal best of 9.83. “I had to make sure that my first 10 steps were powerful and open and after that I stood up,” he explained. “I knew I had the race in me. I knew I had it clear by 60 meters, which is why I ran more 60s this indoor season. And from there I just shut it down.”

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In the men’s shot put, two-time reigning Olympic champion Ryan Crouser won the chance to defend his crown with an effort of 22.84m. “Surprised myself a little bit,” Crouser. “That’s a good sign.”

Joe Kovacs, the Rio and Tokyo Olympic runner-up to Crouser, was second at 22.43 to book his Paris trip as well. Crouser, also the two-time reigning world champion, set the world record of 23.56m last year but has been nagged by injuries this year.

Other US trials wins went to Heath Baldwin in the decathlon and Jasmine Moore in the women’s triple jump.