2015 Western & Southern Open
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, United States.
Roger Federer and Serena Williams were the defending champions and both successfully defended their titles.
ATP singles main-draw entrants
Seeds
Other entrants
The following players received wild cards into the main singles draw: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
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: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:The following player received entry using a protected ranking into the main singles draw:
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
Withdrawals
;Before the tournament- Svetlana Kuznetsova → replaced by Tsvetana Pironkova
- Ekaterina Makarova → replaced by Varvara Lepchenko
- Maria Sharapova → replaced by Mirjana Lučić-Baroni
Retirements
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:Finals
Men's singles
- Roger Federer defeated Novak Djokovic, 7–6, 6–3
Women's singles
- Serena Williams defeated Simona Halep 6–3, 7–6
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