Noah Lyles pulled ahead of Kenny Bednarek heading into the straightaway then held him off down the stretch to capture his fourth title in a much-awaited 200 meters at world championships Friday night. Lyles finished in 19.52 seconds for a 0.06-second margin over Bednarek, who led the final at the halfway point, fell behind by a few steps but was closing the gap over the final footsteps.

Minutes later, Melissa Jefferson-Wooden completed the first women’s 100-200 double at worlds since Shelly-Ann Fraser-Pryce in 2013, winning in 21.68 seconds — a 0.46-second margin over surprise silver medalist Amy Hunt of Britain.