Jessica Pegula ended her quarterfinal barrier at the US Open, defeating Barbora Krejcikova 6-3, 6-3 to reach her second Grand Slam semifinal. The fourth seed, unbeaten in sets this tournament, praised her solid starts. Pegula, 31, could face Aryna Sabalenka next as she chases her maiden major title, with Amanda Anisimova the only other American left.