The 2015 US Open was a tennis tournament played on outdoor hard courts. It was the 135th edition of the US Open, the fourth and final Grand Slam event of the year. It took place at the USTA Billie Jean King National Tennis Center.

Marin Čilić was the defending champion in the men's singles event, but lost to eventual champion Novak Djokovic in the semifinals. Serena Williams was the three-time defending champion in the women's singles event and was also trying to complete the first calendar Grand Slam since Steffi Graf in 1988, having won the Australian Open, French Open and Wimbledon, but lost to Roberta Vinci in the semifinals. Flavia Pennetta won the women's singles title and became the first Italian to win the US Open. The finalists Vinci and Flavia Pennetta were childhood friends from Southern Italy and grew up together.Roberta Vinci ricorda la storica finale tutta italiana agli Us Open di cinque anni fa: «Io e Flavia Pennetta abbiamo realizzato un sogno»

Tournament

The 2015 US Open was the 135th edition of the tournament and it was held at the USTA Billie Jean King National Tennis Center in Flushing Meadows–Corona Park of Queens in New York City, New York, United States.

The tournament was an event run by the International Tennis Federation (ITF) and is part of the 2015 ATP World Tour and the 2015 WTA Tour calendars under the Grand Slam category. The tournament consists of both men's and women's singles and doubles draws as well as a mixed doubles event. There are singles and doubles events for both boys and girls (players under 18), which is part of the Grade A category of tournaments, and singles, doubles and quad events for men's and women's wheelchair tennis players as part of the NEC tour under the Grand Slam category.

In addition, the annual men's and women's Champions Invitational doubles events were held, with eight male and eight female former Grand Slam champions taking part. For the second year running, the American Collegiate Invitational competitions is organized, where top sixteen American collegiate players compete in men's and women's singles events. Exhibition matches also take place.

The tournament is played on hard courts and takes place over a series of 17 courts with DecoTurf surface, including the three main showcourts – Arthur Ashe Stadium (with permanent steel erected and new video boards, LED court lighting and sound system in place, as part of a refurbishment project), Louis Armstrong Stadium and Grandstand. It is the last ever US Open played on courts without the operational roof on center court and with the old Grandstand in place. Starting from the 2016 edition, the Arthur Ashe Stadium will have completed retractable roof and matches will be played on newly built Grandstand.

After two years of tournament being scheduled across 15 days, the US Open returns to a traditional 14-day schedule in 2015, which has impact on all senior events. Women's singles semifinals have been scheduled for September 10 evening session, while men's singles semifinal matches will be played on Friday September 11 after mixed doubles final. Men's doubles final will be played before women's singles final on Saturday September 12, and men's singles final will follow women's doubles final.

Because Serena Williams could become the first woman to win all four major tennis titles in a calendar year since Steffi Graf accomplished the feat in 1988 and because she could tie Graf's major title count of 22, the women's final sold out before the men's final for the first time.

Broadcast In the United States, the 2015 US Open was the first under a new, 11-year, $825 million contract with ESPN, in which the broadcaster holds exclusive rights to the entire tournament and the US Open Series, thus ending CBS Sports' 46-year association with the tournament, and availability of coverage on broadcast television. This also made ESPN the exclusive U.S. broadcaster for three of the four tennis majors (the French Open is split between Tennis Channel for cable coverage and NBC for over-the-air coverage, with portions previously sub-licensed to ESPN until 2016).

Point and prize money distribution

Point distribution Below is a series of tables for each of the competitions showing the ranking points on offer for each event.

Senior EventWFSFQFRound of 16Round of 32Round of 64QQ3Q2Q1Men's singles20001200720360180904510251680Men's doubles0 — — — — —13007804302401307010403020210 — — — — —

Wheelchair EventWFSF/3rdQF/4thSingles800500375100Doubles800500100—Quad singles800500375100800100——

Junior EventWFSFQFRound of 16Round of 32QQ3Boys' singles37527018012075302520Girls' singlesBoys' doubles2701801207545———Girls' doubles———

Prize money The US Open total prize money for 2015 was increased by 10.5 percent to a record $42,253,400, which potentially could reach almost 45 million dollars, as the top three finishers in the Emirates Airline US Open Series may earn up an additional $2.625 million in bonus money at the US Open.

Of the total prize money, $33,017,800 (plus $1,760,000 in qualifying competitions) is distributed for singles players, $4,927,600 for teams competing in doubles events and $500,000 for mixed doubles teams. Competitors in Legends Exhibition, Wheelchair and Champions Invitational events earn $570,000 while players' per diem is estimated at $1,478,000.

EventWFSFQFRound of 16Round of 32Round of 64Round of 128Q3Q2Q1Singles$3,300,000$1,600,000$805,000$410,975$213,575$120,200$68,600$39,500$15,000$10,000$5,000Doubles$570,000$275,000$133,150$67,675$35,025$21,700$14,200————Mixed doubles$150,000$70,000$30,000$15,000$10,000$5,000—————

Bonus prize money Top three players in the 2015 US Open Series receive bonus prize money, depending on where they finished in the 2015 US Open, according to money schedule below.

2015 Emirates Airline US Open Series Finish2015 US Open FinishAwardeesWFSFQFRound of 16Round of 32Round of 64Round of 1281st place$1,000,000$500,000$250,000$125,000$70,000$40,000$25,000$15,000 Andy Murray $70,000 Karolína Plíšková $15,0002nd place$500,000$250,000$125,000$62,500$35,000$20,000$12,500$7,500 Novak Djokovic $500,000 Serena Williams $125,0003rd place$250,000$125,000$62,500$31,250$17,500$10,000$6,250$3,750 John Isner $17,500 Simona Halep $62,500

Singles players 2015 US Open – Men's singles Champion Runner-up Novak Djokovic Roger Federer Semifinals out Stan Wawrinka Marin Cilic Quarterfinals out Feliciano López Jo-Wilfried Tsonga Kevin Anderson Richard Gasquet 4th round out Roberto Bautista Agut Fabio Fognini Benoît Paire Jérémy Chardy Donald Young Andy Murray Tomáš Berdych John Isner 3rd round out Andreas Seppi David Goffin Milos Raonic Rafael Nadal Tommy Robredo Sergiy Stakhovsky Mikhail Kukushkin David Ferrer Ruben Bemelmans Viktor Troicki Dominic Thiem Thomaz Bellucci Guillermo García-López Bernard Tomic Jiří Veselý Philipp Kohlschreiber 2nd round out Andreas Haider-Maurer Teymuraz Gabashvili Pablo Carreño Busta Ričardas Berankis Fernando Verdasco Mardy Fish (PR) Pablo Cuevas Diego Schwartzman Marsel İlhan Sam Groth Marcel Granollers Illya Marchenko (Q) Evgeny Donskoy (Q) Grigor Dimitrov Martin Kližan Filip Krajinović Chung Hyeon Jack Sock Rajeev Ram Aljaž Bedene Austin Krajicek (WC) Denis Istomin Yoshihito Nishioka (Q) Adrian Mannarino Jürgen Melzer (Q) Nicolas Mahut Lleyton Hewitt (WC) Robin Haase Mikhail Youzhny Ivo Karlović Lukáš Rosol Steve Darcis 1st round out João Souza Vasek Pospisil Pablo Andújar Tommy Paul (Q) Pierre-Hugues Herbert (WC) Jerzy Janowicz João Sousa Simone Bolelli Tim Smyczek Tommy Haas (PR) Marco Cecchinato Nikoloz Basilashvili (Q) Steve Johnson Dudi Sela Elias Ymer (Q) Borna Ćorić Kei Nishikori Radek Štěpánek (PR) Alexandr Dolgopolov Michael Berrer (Q) Jarkko Nieminen Lukáš Lacko John Millman Gaël Monfils Guido Pella (Q) Lucas Pouille Lu Yen-hsun Matthew Ebden (Q) Ryan Shane (WC) Florian Mayer (PR) Alejandro González (Q) Radu Albot Albert Ramos James Duckworth Gilles Müller Víctor Estrella Burgos Frances Tiafoe (WC) Ryan Harrison (WC) Ernests Gulbis Gilles Simon Andrey Rublev (Q) Santiago Giraldo Benjamin Becker Daniel Gimeno-Traver James Ward Paul-Henri Mathieu (Q) Konstantin Kravchuk (Q) Nick Kyrgios Bjorn Fratangelo (WC) Denis Kudla Sam Querrey Janko Tipsarević (PR) Damir Džumhur Aleksandr Nedovyesov Dustin Brown Thanasi Kokkinakis Malek Jaziri John-Patrick Smith (Q) Paolo Lorenzi Federico Delbonis Alexander Zverev (Q) Jared Donaldson (WC) Marcos Baghdatis Leonardo Mayer

2015 US Open – Women's singles Champion Runner-up Flavia Pennetta Roberta Vinci Semifinals out Serena Williams Simona Halep Quarterfinals out Venus Williams Kristina Mladenovic Petra Kvitová Victoria Azarenka 4th round out Madison Keys Anett Kontaveit (Q) Ekaterina Makarova Eugenie Bouchard Johanna Konta (Q) Samantha Stosur Varvara Lepchenko Sabine Lisicki 3rd round out Bethanie Mattek-Sands (WC) Agnieszka Radwańska Belinda Bencic Madison Brengle Daria Kasatkina (LL) Elina Svitolina Mariana Duque Mariño Dominika Cibulková Anna Karolína Schmiedlová Andrea Petkovic Sara Errani Petra Cetkovská (PR) Mona Barthel Angelique Kerber Barbora Strýcová Shelby Rogers (Q) 2nd round out Kiki Bertens (Q) Coco Vandeweghe Tereza Smitková Magda Linette Misaki Doi Irina Falconi Anastasia Pavlyuchenkova Anna Tatishvili (Q) Ana Konjuh Bojana Jovanovski Kaia Kanepi Lauren Davis Denisa Allertová Océane Dodin (WC) Polona Hercog Jessica Pegula (Q) Nicole Gibbs (WC) Danka Kovinić Elena Vesnina Garbiñe Muguruza Jeļena Ostapenko (Q) Evgeniya Rodina Monica Niculescu Caroline Wozniacki Lesia Tsurenko Olga Govortsova Yanina Wickmayer Karin Knapp Wang Qiang Camila Giorgi Kurumi Nara Kateryna Bondarenko (Q) 1st round out Vitalia Diatchenko Mirjana Lučić-Baroni Kateryna Kozlova (Q) Sloane Stephens Klára Koukalová Andreea Mitu Urszula Radwańska Kateřina Siniaková Sesil Karatantcheva Daniela Hantuchová Samantha Crawford (WC) Monica Puig Magdaléna Rybáriková Casey Dellacqua Zheng Saisai Karolína Plíšková Daria Gavrilova Tatjana Maria Lara Arruabarrena Svetlana Kuznetsova Elizaveta Kulichkova (Q) Anna-Lena Friedsam Heather Watson Teliana Pereira Carla Suárez Navarro Vania King (PR) Sofia Kenin (WC) Jelena Janković Alison Riske Zarina Diyas Alison Van Uytvanck Ana Ivanovic Laura Siegemund (Q) Lourdes Domínguez Lino Aleksandra Krunić Julia Görges Caroline Garcia Laura Robson (PR) Louisa Chirico (WC) Carina Witthöft Mayo Hibi (Q) Annika Beck Tereza Mrdeža (Q) Tímea Babos Jarmila Gajdošová Alexandra Panova (Q) Christina McHale Jamie Loeb (WC) Lucie Šafářová Kirsten Flipkens Tsvetana Pironkova Irina-Camelia Begu Lucie Hradecká Francesca Schiavone Ajla Tomljanović Alexandra Dulgheru Timea Bacsinszky Maria Sakkari (Q) Johanna Larsson Aliaksandra Sasnovich (Q) Alizé Cornet Sachia Vickery (WC) Yulia Putintseva Marina Erakovic

Day-by-day summaries

Before the tournament Maria Sharapova, the 2006 champion, ranked third in the world (formerly first), withdrew from the tournament due to a leg injury the day before tournament began. Making her withdrawal that was for the second time in three years.

Day 4 British qualifier Johanna Konta upset the 9th seeded Garbiñe Muguruza won in three sets at 7–6(7–4), 6–7(4–7), 6–2 on an epic longest match at three hours and twenty-three minutes, surpassing Nadia Petrova–Samantha Stosur match in the 2011 US Open.

Day 6 Eugenie Bouchard announced that she is withdrawing from the tournament citing a concussion days before her scheduled fourth round match with 43rd-ranked Roberta Vinci. She also withdrew from Women's Doubles and Mixed Doubles. Due to a withdrawal issue, Vinci advanced to her US Open quarterfinal in four years.

Day 8 Kevin Anderson, the 15th seed, upset the 3rd seeded Andy Murray in the fourth round on a four setter win. This was the first time since 2010 US Open that Murray failed to reach his Slam quarterfinal. Anderson became the first South African to reach a Slam quarterfinal since Wayne Ferreira at the 2003 Australian Open.

Day 9 and 10