Noah Lyles and Sha’Carri Richardson advance to the 100 metres semi-finals at the US athletics championships on Thursday. Lyles, the Olympic 100m gold medallist from Paris 2024, wins his heat in 9.97 seconds and secures a semi-final place with the second-fastest time of the day, behind Christian Coleman’s 9.96. Richardson, the 2023 world champion and 2024 Olympic silver medallist, tops the women’s heats in 10.90 seconds to qualify for the next round. Christian Coleman, a former world champion, also advances after running the day’s fastest men’s time, despite a slight headwind of 0.3 metres per second. Lyles describes the first round as a good warm-up to get his “engine firing” and expects a fast final on Friday at the Ichan Stadium track. Yahoo Sports and Jamaica Observer both report the same key qualification times and semi-final advancement for Lyles and Richardson.