Stan Wawrinka advances to his first semi-final since February with a victory against defending champion Damir Dzumhur.

Stan Wawrinka beats Karen Khachanov during their first FedEx ATP Head2Head meeting on Wednesday in St. Petersburg.

Stan Wawrinka will next play in-form Russian Karen Khachanov for a spot in the St. Petersburg Open quarter-finals.

Stan Wawrinka defeats Aljaz Bedene to extend his lead in their FedEx ATP Head2Head series to 3-1.

Stan Wawrinka will face Aljaz Bedene in the first round of the St. Petersburg Open on Monday.

Stan Wawrinka extends his US Open win streak to nine straight, advancing to the third round.

Stan Wawrinka defeats Grigor Dimitrov for the fourth time in eight FedEx ATP Head2Head meetings at the US Open on Monday.

Stan Wawrinka battles Roger Federer on Friday at the Western & Southern Open in Cincinnati.

Stan Wawrinka claimed three consecutive breaks of serve against Kei Nishikori.

Stan Wawrinka earns his third Top 20 win of the season, upsetting 12th seed Diego Schwartzman in Cincinnati.

Stan Wawrinka comes from a set down to beat Nick Kyrgios at the Rogers Cup on Tuesday.

Stan Wawrinka returns to the Citi Open in Washington, D.C. for the first time since 2010.

After weeks of solid training, Stan Wawrinka was left disappointed by his second-round loss to qualifier Thomas Fabbiano on Thursday at Wimbledon.

Stan Wawrinka looks to make a deep run at Wimbledon after falling in the first round last year.

Stan Wawrinka is broken four times in his loss against Andy Murray at the Nature Valley International on Monday.

Stan Wawrinka is confident that his long road to full fitness is coming to an end.

Stan Wawrinka did not face a break point in his opening-round victory against Cameron Norrie at the Fever-Tree Championships on Monday.

Stan Wawrinka hit 13 aces and lost just four first-service points to oust home favourite Cameron Norrie at The Queen's Club on Monday.

Stan Wawrinka loses to Guillermo Garcia-Lopez on Monday in the first round at Roland Garros for the second time in five appearances.

Stan Wawrinka improves to 10-1 in Geneva on Wednesday.

Switzerland's Stan Wawrinka lifted the title in Geneva in 2016 and 2017.

Stan Wawrinka loses in the opening round of the Internazionali BNL d'Italia, his first match since the Open 13 Provence in February.

Stan Wawrinka hopes to make his return at the Internazionali BNL d’Italia in Rome.

Stan Wawrinka slices a backhand during a first-round match against Tallon Griekspoor in Rotterdam on Tuesday.

Stan Wawrinka falls short of what would have been his 29th tour-level final at the Diema Xtra Sofia Open in Bulgaria.