Mirra Andreeva came from a set down to defeat Anastasia Potapova and claim the Upper Austria Ladies Linz title in fine style on Sunday.
Jessica Pegula defeated Yuliia Starodubtseva 6-2, 6-2 in the Charleston Open Final on Sunday, defending the title she won last year.
Despite falling short in the Miami Open final, Coco Gauff showed encouraging signs in her serve and forehand that could boost her prospects on clay, according to Marion Bartoli.
Karolina Muchova booked her place in the Miami Open semi-finals for the first time after edging a tightly contested straight-sets victory over rising Canadian teenager Victoria Mboko on Tuesday.
World No. 1 Aryna Sabalenka powered into the Miami Open quarter-finals with a comfortable victory over Zheng Qinwen.
Emma Raducanu has been forced to withdraw from the Miami Open due to illness, still suffering from the effects of a virus contracted earlier this season.