Kei Nishikori is a Japanese professional tennis player. He is the only Japanese man in the Open Era to have been ranked in the top five in singles, reaching his career-high ranking of world No. 4 in March 2015, and the second man in history to do so after ...

was the defending champion, but lost to

Benoît Paire Benoît "Ben" Paire (; born 8 May 1989) is a French professional tennis player. His best result in a Grand Slam (tennis), Grand Slam has been reaching the fourth round, which he has achieved on four occasions. He has won three singles titles, ...

in the semifinals.

Stan Wawrinka Stanislas "Stan" Wawrinka (; born 28 March 1985) is a Swiss professional tennis player. He has been ranked world No. 3 in men's singles by the Association of Tennis Professionals (ATP), first achieved on 27 January 2014. Wawrinka has won 16 ATP T ...

won the title, defeating Paire in the final, 6–2, 6–4.

Seeds

Draw

Finals

Top half

Bottom half

Qualifying

Seeds

Qualifiers

Qualifying draw

First qualifier

Second qualifier

Third qualifier

Fourth qualifier

External links

Main draw

Qualifying draw
{{DEFAULTSORT:2015 Rakuten Japan Open Tennis Championships Singles 2015 Japan Open Tennis Championships