India, Nov. 13 -- Jessica Pegula booked her place in the WTA Finals semi-finals after surviving a tough three-set battle against Linda Noskova on Thursday. The American saved a match point before rallying to secure a 7-6(2), 4-6, 7-5 victory, with a career-best 16 aces helping her through the contest. The win also brought an end to Coco Gauff's campaign, as Pegula's result confirmed her elimination from the tournament despite having another match to play.

Gauff had earlier kept her hopes alive with a 6-4, 7-5 win over Marta Kostyuk, fighting back from 1-5 down in the second set to claim the victory. However, the result was not enough to take her into the last four. Kostyuk, who entered the tournament as an alternate, ended her campaign w...