Barbora Krejcikova grabbed the last semifinal spot at the WTA Finals with a 7-5, 6-4 win over Coco Gauff on Thursday, a result that eliminated second-ranked Iga Swiatek from the season-ending tournament. Krejcikova completes a last-four lineup that already included top-ranked Aryna Sabalenka, Zheng Qinwen and Gauff. Krejcikova won the Orange Group and will face Zheng in Friday’s semifinals, while Gauff will take on Purple Group winner Sabalenka.