The 2015 Western & Southern Open was a men's and women's tennis tournament played on outdoor hard courts August 15–23, 2015. It was part of the ATP World Tour Masters 1000 of the 2015 ATP World Tour and of the WTA Premier 5 tournaments of the 2015 WTA Tour, as well as a 2015 US Open Series event. The 2015 tournament was the men's 114th edition and the women's 87th edition of the Cincinnati Masters. The tournament is held annually at the Lindner Family Tennis Center in Mason, Ohio (a northern suburb of Cincinnati), United States.
Roger Federer and Serena Williams were the defending champions and both successfully defended their titles.
Points and prize money
Point distribution
Prize money
ATP singles main-draw entrants
Seeds
Rankings are as of August 10, 2015
Other entrants
The following players received wild cards into the main singles draw: Jared Donaldson Mardy Fish Bjorn Fratangelo Rajeev Ram
The following players received entry from the singles qualifying draw: Alexandr Dolgopolov Thanasi Kokkinakis Denis Kudla Lu Yen-hsun Nicolas Mahut Vasek Pospisil Alexander Zverev
The following player received entry as a lucky loser: Benoît Paire
Withdrawals
Before the tournament
David Ferrer → replaced by João Sousa
Guillermo García López → replaced by Gilles Müller
Tommy Haas → replaced by Jerzy Janowicz
Juan Mónaco → replaced by Jiří Veselý
Kei Nishikori → replaced by Benoît Paire
ATP doubles main-draw entrants
Seeds
Rankings are as of August 10, 2015
Other entrants
The following pairs received wildcards into the doubles main draw: Eric Butorac / Scott Lipsky Steve Johnson / Sam Querrey
WTA singles main-draw entrants
Seeds
Rankings are as of August 10, 2015
Other entrants
The following players received wild cards into the main singles draw: Daniela Hantuchová Alison Riske Maria Sharapova CoCo Vandeweghe
The following player received entry using a protected ranking into the main singles draw: Dominika Cibulková
The following players received entry from the singles qualifying draw: Tímea Babos Mona Barthel Kateryna Bondarenko Lauren Davis Casey Dellacqua Julia Görges Lucie Hradecká Ana Konjuh Christina McHale Yulia Putintseva Anna Karolína Schmiedlová Yaroslava Shvedova
The following player received entry as a lucky loser: Mirjana Lučić-Baroni
Withdrawals
Before the tournament
Svetlana Kuznetsova (left lower leg injury) → replaced by Tsvetana Pironkova
Ekaterina Makarova (right lower leg injury) → replaced by Varvara Lepchenko
Maria Sharapova (right upper leg injury) → replaced by Mirjana Lučić-Baroni
During the tournament
Venus Williams (viral illness)
Retirements
Victoria Azarenka (left thigh injury) Belinda Bencic (right wrist injury)
WTA doubles main-draw entrants
Seeds
Rankings are as of August 10, 2015
Other entrants
The following pairs received wildcards into the doubles main draw: Madison Brengle / Alexa Glatch Madison Keys / Lisa Raymond Christina McHale / CoCo Vandeweghe
Finals
Men's singles
Roger Federer defeated Novak Djokovic, 7–6(7–1), 6–3
Women's singles
Serena Williams defeated Simona Halep 6–3, 7–6(7–5)
Men's doubles
Daniel Nestor / Édouard Roger-Vasselin defeated Marcin Matkowski / Nenad Zimonjić, 6–2, 6–2
Women's doubles
Chan Hao-ching / Chan Yung-jan defeated Casey Dellacqua / Yaroslava Shvedova, 7–5, 6–4