BUDAPEST, Hungary—Two-time world champion Caeleb Dressel is not defending his title in the men’s 100 freestyle at the swimming world championships after withdrawing before the semifinals. Dressel was included in the initial start list for Tuesday’s semifinals in Budapest, but was not in an updated version with reserve Hwang Sun-woo of South Korea taking his…

TOKYO—Make it five for Caeleb Dressel. The American star won his fifth gold medal of the Tokyo Games, finishing off one of the great performances in Olympic history. He joins an elite club of just four other swimmers ever with at least five gold medals at one games. Dressel swam the butterfly leg as the…

OMAHA, Neb.—America’s biggest swimming stars shined brightly on the next-to-last night of the Olympic trials. Their only complaint? Both wanted to go a bit faster Saturday. Caeleb Dressel added another event to his Tokyo program, powering to a dominating victory in the 100-meter butterfly. Katie Ledecky blew away the field in the 800 freestyle, winning…