Mezue ahịrịokwu na-esonụ: Wawrinka gara n'ihu na-achịkwa Grand Slam na US Open, na mmeri Albert Ramos, Chung Hyeon, Ruben Bemelmans, Donald Young. Mgbe ahụ ọ meriri Kevin Anderson nke South Africa na setịpụrụ n'usoro na nkeji iri na ise iji ruo ọkara ikpeazụ, ebe Roger Federer zipụrụ ya na setịpụrụ n'usoro. Wawrinka mechara nyere Switzerland aka ịga n'ihu na Davis Cup World Group site na mmeri setịpụrụ ise na Dutchman Thiemo de Bakker na Geneva. Mgbe ahụ, ọ gbara asọmpi na Rakuten Japan Open Tennis Championship, na-abanye dị ka mkpụrụ mbụ. Wawrinka bọrọ ọbọ maka mmeri Tatsuma Ito meriri ya n'otu asọmpi ahụ n'afọ gara aga site na imeri ya na agba nke abụọ. O mechara ruo agba nke ikpeazu, ebe o meriri Benoît Paire na setịpụrụ ma merie aha nke anọ ya n'oge a. Wawrinka wee banye n'ime
Shanghai Rolex Masters, ebe o meriri onye bụbu onye mmeri US Open Marin Čilić n'agha atọ tupu o merie Rafael Nadal na nkeji iri na ise. Na-egwu na Paris Masters, Wawrinka megwara mmeri mbụ ya na Rafael Nadal na Shanghai site na mmeri set abụọ. Na ọkara ikpeazu, Wawrinka meriri Novak Djokovic na egwuregwu atọ. O mechara mee ka arụmọrụ ya na ATP World Tour Finals n'afọ gara aga site na iru ọkara ikpeazu na London na mmeri nke Andy Murray na David Ferrer. Na ọkara ikpeazu, Wawrinka zutere Roger Federer maka oge nke ise na oge 2015, na-efunahụ na setịpụrụ.