Olympic and world champion Noah Lyles breezed through his 100 metres heat in 10.05 at the USA Track and Field Championships in Eugene, Oregon on Thursday before pulling out of the semi-finals to focus on the 200. With a ticket to the world championships in Tokyo on the line, Kenny Bednarek was the only man to dip under 10 seconds in the first round, posting 9.95. Lyles and Sha'Carri Richardson are guaranteed spots in the men's and women's 100 at the worlds in September thanks to their triumphs