2015 Citi Open – Men's singles

2015 Citi Open JPN Kei Nishikori USA John Isner 4–6, 6–4, 6–4 48 (6Q Qualifiers / 4WC Wild Cards) 16 Washington Open (tennis) Washington Open 2015 Citi Open Milos Raonic was the defending champion,https://www.abc.net.au/news/2014-08-04/raonic-wins-washington-open/5644922 Milos Raonic beats Vasek Pospisil to win Washington Open in all-Canadian final Australian Broadcasting Corporation 24 September 2025 but chose not to participate this year. Kei Nishikori won the title, defeating John Isner in the final, 4–6, 6–4, 6–4.https://www.si.com/tennis/2015/08/09/ap-ten-washington Nishikori comes back to beat Isner for 1st Citi Open title Sports Illustrated 24 September 2025 Seeds All seeds receive a bye into the second round. 30em 1 1GBR Andy Murray (second round) 2 4JPN Kei Nishikori (champion) 3 3CRO Marin Čilić (semifinals) 4 2FRA Richard Gasquet (third round) 5 3RSA Kevin Anderson (second round) 6 2BUL Grigor Dimitrov (third round) 7 4ESP Feliciano López (third round) 8 1USA John Isner (final) 9 4SRB Viktor Troicki (second round) 10 3CRO Ivo Karlović (second round) 11 2AUS Bernard Tomic (second round) 12 1CAN Vasek Pospisil (third round) 13 3USA Sam Querrey (third round) 14 1URU Pablo Cuevas (second round) 15 2USA Jack Sock (quarterfinals) 16 4ARG Leonardo Mayer (third round) Draw Finals Quarterfinals Semifinals Final 175 LTU Ričardas Berankis 3 7 3 8 USA John Isner 6 5 6 15 USA Jack Sock 65 1 USA Steve Johnson 77 6 GER Alexander Zverev 5 63 3 CRO Marin Čilić 7 77 AUS Sam Groth 4 4 2 JPN Kei Nishikori 6 6 8 USA John Isner 6 3 711 USA Steve Johnson 3 6 69 3 CRO Marin Čilić 6 1 4 2 JPN Kei Nishikori 3 6 6 8 USA John Isner 6 4 4 2 JPN Kei Nishikori 4 6 6 Top half Section 1 First round Second round Third round Quarterfinals RUS T Gabashvili 4 6 6 GER B Becker 6 1 3 LTU R Berankis 77 6 TPE Y-h Lu 61 3 USA D Young 6 6 WC GER T Haas 3 4 DOM V Estrella Burgos 4 6 6 WC CHI N Jarry 6 3 4 1 GBR A Murray 4 6 64 RUS T Gabashvili 6 4 77 LTU R Berankis 6 6 14 URU P Cuevas 3 3 12 CAN V Pospisil 7 6 USA D Young 5 3 DOM V Estrella Burgos 3 65 8 USA J Isner 6 77 RUS T Gabashvili 5 4 LTU R Berankis 7 6 12 CAN V Pospisil 4 66 8 USA J Isner 6 78 LTU R Berankis 3 7 3 8 USA J Isner 6 5 6 Section 2 First round Second round Third round Quarterfinals TUN M Jaziri 3 5 LUX G Müller 6 7 Q AUS M Matosevic 3 3 BEL R Bemelmans 6 6 SVK L Lacko 5 3 USA S Johnson 7 6 Q ARG G Pella 6 67 7 LL CRO I Dodig 3 79 5 4 FRA R Gasquet 5 6 6 LUX G Müller 7 4 4 BEL R Bemelmans 67 3 15 USA J Sock 79 6 11 AUS B Tomic 79 4 2 USA S Johnson 67 6 6 Q ARG G Pella 61 4 6 BUL G Dimitrov 77 6 4 FRA R Gasquet 77 65 4 15 USA J Sock 64 77 6 USA S Johnson 6 1 6 6 BUL G Dimitrov 3 6 3 15 USA J Sock 65 1 USA S Johnson 77 6 Bottom half Section 3 First round Second round Third round Quarterfinals Q JPN Y Nishioka 61 3 GER A Zverev 77 6 UKR A Dolgopolov 6 6 USA T Smyczek 4 2 Q BAR D King 2 1 JPN G Soeda 6 6 ISR D Sela 2 1 KOR H Chung 6 6 5 RSA K Anderson 6 3 4 GER A Zverev 2 6 6 UKR A Dolgopolov 6 77 10 CRO I Karlović 4 62 13 USA S Querrey 6 5 6 JPN G Soeda 3 7 4 KOR H Chung 62 3 3 CRO M Čilić 77 6 GER A Zverev 2 6 6 UKR A Dolgopolov 6 2 4 13 USA S Querrey 62 63 3 CRO M Čilić 77 77 GER A Zverev 5 63 3 CRO M Čilić 7 77 Section 4 First round Second round Third round Quarterfinals Q AUS J-P Smith 3 4 WC AUS L Hewitt 6 6 AUS S Groth 710 4 6 BRA T Bellucci 68 6 3 WC USA D Kudla 6 4 65 SLO B Rola 2 6 77 AUS J Duckworth 6 77 Q USA R Harrison 1 64 7 ESP F López 4 7 6 WC AUS L Hewitt 6 5 3 AUS S Groth 6 6 9 SRB V Troicki 3 4 16 ARG L Mayer 77 63 6 SLO B Rola 62 77 4 AUS J Duckworth 710 1 4 2 JPN K Nishikori 68 6 6 7 ESP F López 3 4 AUS S Groth 6 6 16 ARG L Mayer 4 4 2 JPN K Nishikori 6 6 AUS S Groth 4 4 2 JPN K Nishikori 6 6 Qualifying Seeds 30em USA Rajeev Ram (withdrew) GBR Kyle Edmund (first round) CRO Ivan Dodig (qualifying competition, lucky loser) GBR James Ward (first round) ARG Guido Pella (qualified) COL Alejandro González (qualifying competition) USA Ryan Harrison (qualified) USA Austin Krajicek (first round) AUS John-Patrick Smith (qualified) JPN Yoshihito Nishioka (qualified) IND Somdev Devvarman (first round) JPN Yūichi Sugita (first round) Qualifiers 30em AUS Marinko Matosevic USA Ryan Harrison JPN Yoshihito Nishioka BAR Darian King ARG Guido Pella AUS John-Patrick Smith Lucky losers CRO Ivan Dodig Qualifying draw First qualifier First round Qualifying competition 175 Alt USA Sekou Bangoura 3 77 67 Alt JPN Takuto Niki 6 64 79 AUS Marinko Matosevic 6 2 78 8 USA Austin Krajicek 3 6 66 Alt JPN Takuto Niki 2 4 AUS Marinko Matosevic 6 6 Second qualifier First round Qualifying competition 175 2/Alt GBR Kyle Edmund 4 0 Alt GER Mischa Zverev 6 6 BRA Guilherme Clezar 3 77 2 7 USA Ryan Harrison 6 62 6 Alt GER Mischa Zverev 3 63 7 USA Ryan Harrison 6 77 Third qualifier First round Qualifying competition 175 3 CRO Ivan Dodig 6 3 77 GBR Liam Broady 3 6 65 WC USA Robby Ginepri 6 3 3 10 JPN Yoshihito Nishioka 4 6 6 3 CRO Ivan Dodig 62 3 10 JPN Yoshihito Nishioka 77 6 Fourth qualifier First round Qualifying competition 175 4 GBR James Ward 4 7 4 Alt CHN Zhang Ze 6 5 6 Alt BAR Darian King 6 5 6 11 IND Somdev Devvarman 2 7 2 Alt CHN Zhang Ze 5 3 Alt BAR Darian King 7 6 Fifth qualifier First round Qualifying competition 175 5 ARG Guido Pella 6 6 WC ARG Jordi Arconada 4 4 WC USA Eric Quigley 6 5 6 12 JPN Yūichi Sugita 3 7 4 5 ARG Guido Pella 6 6 WC USA Eric Quigley 3 4 Sixth qualifier First round Qualifying competition 175 6 COL Alejandro González 3 6 6 WC USA Ryan Shane 6 3 2 Alt CRO Matija Pecotić 2 4 9 AUS John-Patrick Smith 6 6 6 COL Alejandro González 63 1 9 AUS John-Patrick Smith 77 6 References Main Draw Qualifying Draw Category:2015 ATP World Tour