Petra Kvitova won 6-2, 7-6 (8/6) to clinch her second title of the year and 31st of her career.
Petra Kvitova said she was particularly concerned about Russian and Belarusian involvement in the Olympic Games.
Two-time Wimbledon winner Kvitova beat the current All England Club champion 6-3, 7-5 in round one, exacting a measure of revenge
World number three Casper Ruud cruised past Thiago Monteiro in straight sets to give Norway some hope in their mixed teams United Cup tie against Brazil in Brisbane on Sunday.
Two-time Wimbledon champion Petra Kvitova announced her engagement to coach Jiri Vanek on Wednesday, posing with an engagement ring on her hand in her "special place".
Wimbledon: Paula Badosa triumphed 7-5, 7-6 (7/4) to make the last 16 for a second successive year at the All England Club
Tunisia's Ons Jabeur warmed up for the Australian Open by defeating two-time Wimbledon champion Petra Kvitova 6-4, 6-4 in the second round of the Sydney Classic on Wednesday.
Victoria Azarenka entered into Round of 16 of Indian Wells following a tense 7-5, 6-4 victory over rival Petra Kvitova.
Australian Open: Petra Kvitova hit back strongly after losing the first set, but her challenge fell apart as she went out 6-4, 1-6, 6-1 after 44 unforced errors and seven double faults.
French Open: Sofia Kenin beat Petra Kvitova 6-4, 7-5 on Thursday to make the Roland Garros final and set-up a clash with the 19-year-old Iga Swiatek.