# 2018 US Open Series

In tennis, the 2018 US Open Series was the fifteenth edition of the US Open Series, which comprises]d a group of hard court tournaments that started on July 23, 2018 in Atlanta and concluded in Connecticut for the women and in Winston-Salem for the men on August 26, 2018. This edition consisted of three separate men's tournaments and three women's tournaments, with the Western & Southern Open hosting both a men's and women's event. The series was headlined by two ATP World Tour Masters 1000 and two WTA Premier 5 events.

## Tournament Schedule

* Legend
* Grand Slam Event
* ATP Masters 1000 and WTA Premier 5
* ATP World Tour 500 and WTA Premier
* ATP World Tour 250 and WTA International
| Week | Date | Men's Events | Women's Events |
| 1 | July 23 – July 29 | Atlanta BB&T Atlanta Open 2018 Champion: John Isner | No Series Event Held This Week |
| 2 | July 30 – August 5 | No Series Event Held This Week | San Jose Silicon Valley Classic 2018 Champion: Mihaela Buzărnescu |
| 3 | August 6 – August 12 | Toronto Rogers Cup presented by National Bank 2018 Champion: Rafael Nadal | Montreal Rogers Cup presented by National Bank 2018 Champion: Simona Halep |
| 4 | August 13 – August 19 | Cincinnati Western & Southern Open 2018 Champion: Novak Djokovic | Cincinnati Western & Southern Open 2018 Champion: Kiki Bertens |
| 5 | August 20 – August 26 | Winston-Salem Winston-Salem Open 2018 Champion: Daniil Medvedev | New Haven Connecticut Open 2018 Champion: Aryna Sabalenka |
| 6–7 | August 27 – September 9 | New York US Open 2018 Champion: Novak Djokovic | New York US Open 2018 Champion: Naomi Osaka |

## Week 1
### ATP – BB&T Atlanta Open

John Isner was the defending champion and successfully defended his title, defeating Ryan Harrison in a rematch of the 2017 final, 5–7, 6–3, 6–4.

#### Main Draw Finals

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Finals | Finals | Finals | Finals | Finals |
| 1 | John Isner | 7 | 4 | 6 | | | | | | | | | | |
| 7 | Mischa Zverev | 5 | 6 | 1 | | | | | | | | | | |
| 7 | Mischa Zverev | 5 | 6 | 1 | 1 | John Isner | 6 | 6$^6$ | 6 | | | | | |
| | | | | | 4 | Matthew Ebden | 4 | 7$^8$ | 1 | | | | | |
| 4 | Matthew Ebden | 6 | 6 | | 4 | Matthew Ebden | 4 | 7$^8$ | 1 | | | | | |
| | Marcos Baghdatis | 3 | 2 | | | | | | | | | | | |
| | Marcos Baghdatis | 3 | 2 | | | | | | | 1 | John Isner | 5 | 6 | 6 |
| | | | | | | | | | | 8 | Ryan Harrison | 7 | 3 | 4 |
| 8 | Ryan Harrison | 6$^3$ | 6 | 7$^7$ | | | | | | | | | | | 8 | Ryan Harrison | 7 | 3 | 4 |
| 3/WC | Chung Hyeon | 7$^7$ | 2 | 6$^5$ | | | | | | | | | | |
| 3/WC | Chung Hyeon | 7$^7$ | 2 | 6$^5$ | 8 | Ryan Harrison | 2 | 6 | 6 | | | | | |
| | | | | | | Cameron Norrie | 6 | 3 | 2 | | | | | |
| | Cameron Norrie | 7 | 3 | | | Cameron Norrie | 6 | 3 | 2 | | | | | |
| 2 | Nick Kyrgios | 5 | 0$^r$ | | | | | | | | | | | |

## Week 2
### WTA – Silicon Valley Classic (San Jose)

Madison Keys was the defending champion, but withdrew due to a wrist injury.
Mihaela Buzărnescu won her first WTA Tour singles title, defeating Maria Sakkari in the final, 6–1, 6–0.

#### Main Draw Finals

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| | Victoria Azarenka | 7$^7$ | 0$^r$ | | | | | | | | | |
| | Danielle Collins | 6$^4$ | 3 | | | | | | | | | |
| | Danielle Collins | 6$^4$ | 3 | | Danielle Collins | 6 | 5 | 2 | | | | |
| | | | | | Maria Sakkari | 3 | 7 | 6 | | | | |
| 3/WC | Venus Williams | 4 | 6$^2$ | | Maria Sakkari | 3 | 7 | 6 | | | | |
| | Maria Sakkari | 6 | 7$^7$ | | | | | | | | | |
| | Maria Sakkari | 6 | 7$^7$ | | | | | | | Maria Sakkari | 1 | 0 |
| | | | | | | | | | 5 | Mihaela Buzărnescu | 6 | 6 |
| | Johanna Konta | 6$^4$ | 3 | | | | | | | | | | 5 | Mihaela Buzărnescu | 6 | 6 |
| 4 | Elise Mertens | 7$^7$ | 6 | | | | | | | | | |
| 4 | Elise Mertens | 7$^7$ | 6 | 4 | Elise Mertens | 6 | 3 | 1 | | | | |
| | | | | 5 | Mihaela Buzărnescu | 4 | 6 | 6 | | | | |
| 5 | Mihaela Buzărnescu | 6 | 7 | 5 | Mihaela Buzărnescu | 4 | 6 | 6 | | | | |
| | Ajla Tomljanović | 1 | 5 | | | | | | | | | |

## Week 3
### ATP – Rogers Cup (Toronto)

Alexander Zverev was the defending champion, but lost in the quarterfinals to Stefanos Tsitsipas.
Rafael Nadal won his fourth Rogers Cup title, defeating Tsitsipas in the final, 6–2, 7–6$^{(7–4)}$.

#### Main Draw Finals

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| 1 | Rafael Nadal | 2 | 6 | 6 | | | | | | | | | |
| 6 | Marin Čilić | 6 | 4 | 4 | | | | | | | | | |
| 6 | Marin Čilić | 6 | 4 | 4 | 1 | Rafael Nadal | 7$^7$ | 6 | | | | | |
| | | | | | | Karen Khachanov | 6$^3$ | 4 | | | | | |
| | Robin Haase | 3 | 1 | | | Karen Khachanov | 6$^3$ | 4 | | | | | |
| | Karen Khachanov | 6 | 6 | | | | | | | | | | |
| | Karen Khachanov | 6 | 6 | | | | | | | 1 | Rafael Nadal | 6 | 7$^7$ |
| | | | | | | | | | | | Stefanos Tsitsipas | 2 | 6$^4$ |
| 5 | Grigor Dimitrov | 2 | 2 | | | | | | | | | | | Stefanos Tsitsipas | 2 | 6$^4$ |
| 4 | Kevin Anderson | 6 | 6 | | | | | | | | | | |
| 4 | Kevin Anderson | 6 | 6 | | 4 | Kevin Anderson | 7$^7$ | 4 | 6$^7$ | | | | |
| | | | | | | Stefanos Tsitsipas | 6$^4$ | 6 | 7$^9$ | | | | |
| | Stefanos Tsitsipas | 3 | 7$^{13}$ | 6 | | Stefanos Tsitsipas | 6$^4$ | 6 | 7$^9$ | | | | |
| 2 | Alexander Zverev | 6 | 6$^{11}$ | 4 | | | | | | | | | |

### WTA – Rogers Cup (Montreal)

Elina Svitolina was the defending champion, but she lost to Sloane Stephens in the semifinals.
World No. 1 Simona Halep won the title, defeating Stephens in the final, 7–6$^{(8–6)}$, 3–6, 6–4.

#### Main Draw Finals

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final |
| 1 | Simona Halep | 7 | 6 | | | | | | | | | |
| 6 | Caroline Garcia | 5 | 1 | | | | | | | | | |
| 6 | Caroline Garcia | 5 | 1 | 1 | Simona Halep | 6 | 6 | | | | | |
| | | | | 15 | Ashleigh Barty | 4 | 1 | | | | | |
| 15 | Ashleigh Barty | 6 | 6 | 15 | Ashleigh Barty | 4 | 1 | | | | | |
| | Kiki Bertens | 3 | 1 | | | | | | | | | |
| | Kiki Bertens | 3 | 1 | | | | | 1 | Simona Halep | 7$^8$ | 3 | 6 |
| | | | | | | | | 3 | Sloane Stephens | 6$^6$ | 6 | 4 |
| | Anastasija Sevastova | 2 | 2 | | | | | | | | | | 3 | Sloane Stephens | 6$^6$ | 6 | 4 |
| 3 | Sloane Stephens | 6 | 6 | | | | | | | | | |
| 3 | Sloane Stephens | 6 | 6 | 3 | Sloane Stephens | 6 | 6 | | | | | |
| | | | | 5 | Elina Svitolina | 3 | 3 | | | | | |
| 5 | Elina Svitolina | 7 | 6 | 5 | Elina Svitolina | 3 | 3 | | | | | |
| 14 | Elise Mertens | 5 | 3 | | | | | | | | | |

## Week 4
### ATP – Western & Southern Open (Cincinnati)

Grigor Dimitrov was the defending champion, but lost to Novak Djokovic in the third round.
Djokovic won the title, defeating Roger Federer in the final, 6–4, 6–4, becoming the first player to win all nine ATP Masters 1000 events since its inception in 1990.

#### Main Draw Finals

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| | Milos Raonic | 5 | 6 | 3 | | | | | | | | | |
| 10 | Novak Djokovic | 7 | 4 | 6 | | | | | | | | | |
| 10 | Novak Djokovic | 7 | 4 | 6 | 10 | Novak Djokovic | 6 | 3 | 6 | | | | |
| | | | | | 7 | Marin Čilić | 4 | 6 | 3 | | | | |
| 13 | Pablo Carreño Busta | 6$^7$ | 4 | | 7 | Marin Čilić | 4 | 6 | 3 | | | | |
| 7 | Marin Čilić | 7$^9$ | 6 | | | | | | | | | | |
| 7 | Marin Čilić | 7$^9$ | 6 | | | | | | | 10 | Novak Djokovic | 6 | 6 |
| | | | | | | | | | | 2 | Roger Federer | 4 | 4 |
| 11 | David Goffin | 7$^7$ | 7$^7$ | | | | | | | | | | | 2 | Roger Federer | 4 | 4 |
| 4 | Juan Martín del Potro | 6$^5$ | 6$^4$ | | | | | | | | | | |
| 4 | Juan Martín del Potro | 6$^5$ | 6$^4$ | | 11 | David Goffin | 6$^3$ | 1$^r$ | | | | | |
| | | | | | 2 | Roger Federer | 7$^7$ | 1 | | | | | |
| WC | Stan Wawrinka | 7$^7$ | 6$^6$ | 2 | 2 | Roger Federer | 7$^7$ | 1 | | | | | |
| 2 | Roger Federer | 6$^2$ | 7$^8$ | 6 | | | | | | | | | |

### WTA – Western & Southern Open (Cincinnati)

Garbiñe Muguruza was the defending champion, but lost in the second round to Lesia Tsurenko.
Kiki Bertens won her first hard court & Premier 5 level title by beating Simona Halep in the final, 2–6, 7–6$^{(8–6)}$, 6–2.

#### Main Draw Finals

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final |
| 1 | Simona Halep | 6 | 6 | | | | | | | | | | | |
| | Lesia Tsurenko | 4 | 1 | | | | | | | | | | | |
| | Lesia Tsurenko | 4 | 1 | | 1 | Simona Halep | 6 | 6 | | | | | | |
| | | | | | | Aryna Sabalenka | 3 | 4 | | | | | | |
| 13 | Madison Keys | 3 | 4 | | | Aryna Sabalenka | 3 | 4 | | | | | | |
| | Aryna Sabalenka | 6 | 6 | | | | | | | | | | | |
| | Aryna Sabalenka | 6 | 6 | | | | | | | 1 | Simona Halep | 6 | 6$^6$ | 2 |
| | | | | | | | | | | | Kiki Bertens | 2 | 7$^8$ | 6 |
| 8 | Petra Kvitová | 7 | 5 | 6 | | | | | | | | | | | Kiki Bertens | 2 | 7$^8$ | 6 |
| 15 | Elise Mertens | 5 | 7 | 3 | | | | | | | | | | |
| 15 | Elise Mertens | 5 | 7 | 3 | 8 | Petra Kvitová | 6 | 4 | 2 | | | | | |
| | | | | | | Kiki Bertens | 3 | 6 | 6 | | | | | |
| 5 | Elina Svitolina | 4 | 3 | | | Kiki Bertens | 3 | 6 | 6 | | | | | |
| | Kiki Bertens | 6 | 6 | | | | | | | | | | | |

## Week 5
### ATP – Winston-Salem Open

Roberto Bautista Agut was the defending champion but chose not to participate this year.
Daniil Medvedev won the title, defeating Steve Johnson in the final, 6–4, 6–4.

#### Main Draw Finals

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| | Daniil Medvedev | 7$^7$ | 6 | | | | | | | | | |
| | Ryan Harrison | 6$^4$ | 4 | | | | | | | | | |
| | Ryan Harrison | 6$^4$ | 4 | | | Daniil Medvedev | 6 | 6 | | | | |
| | | | | | | Taro Daniel | 1 | 1 | | | | |
| 14 | Nicolás Jarry | 6 | 2 | 1 | | Taro Daniel | 1 | 1 | | | | |
| | Taro Daniel | 4 | 6 | 6 | | | | | | | | |
| | Taro Daniel | 4 | 6 | 6 | | | | | | Daniil Medvedev | 6 | 6 |
| | | | | | | | | | 8 | Steve Johnson | 4 | 4 |
| 8 | Steve Johnson | 6 | 6 | | | | | | | | | | 8 | Steve Johnson | 4 | 4 |
| 3/WC | Kyle Edmund | 1 | 2 | | | | | | | | | |
| 3/WC | Kyle Edmund | 1 | 2 | | 8 | Steve Johnson | 6 | 6 | | | | |
| | | | | | 2 | Pablo Carreño Busta | 3 | 4 | | | | |
| 6 | Chung Hyeon | 3 | 4 | | 2 | Pablo Carreño Busta | 3 | 4 | | | | |
| 2 | Pablo Carreño Busta | 6 | 6 | | | | | | | | | |

### WTA – Connecticut Open (New Haven)

Daria Gavrilova was the defending champion, but lost to Aryna Sabalenka in the second round.
Sabalenka went on to win her first WTA Tour title, defeating Carla Suárez Navarro in the final, 6–1, 6–4.

#### Main Draw Finals

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final |
| LL | Belinda Bencic | 3 | 2 | | | | | | | | |
| | Aryna Sabalenka | 6 | 6 | | | | | | | | |
| | Aryna Sabalenka | 6 | 6 | | | Aryna Sabalenka | 6 | 7$^7$ | | | |
| | | | | | 5 | Julia Görges | 4 | 6$^3$ | | | |
| | Ekaterina Makarova | 4 | 2 | | 5 | Julia Görges | 4 | 6$^3$ | | | |
| 5 | Julia Görges | 6 | 6 | | | | | | | | |
| 5 | Julia Görges | 6 | 6 | | | | | | Aryna Sabalenka | 6 | 6 |
| | | | | | | | | | Carla Suárez Navarro | 1 | 4 |
| | Carla Suárez Navarro | 6 | 0 | | | | | | | | | Carla Suárez Navarro | 1 | 4 |
| 3 | Petra Kvitová | 3 | 0$^r$ | | | | | | | | |
| 3 | Petra Kvitová | 3 | 0$^r$ | | | Carla Suárez Navarro | 4 | | | | |
| | | | | | Q | Monica Puig | 4$^r$ | | | | |
| Q | Monica Puig | 7 | 1 | 6 | Q | Monica Puig | 4$^r$ | | | | |
| 2 | Caroline Garcia | 5 | 6 | 2 | | | | | | | |

## Weeks 6–7
### ATP – US Open (New York)

Rafael Nadal was the defending champion, but retired in his semifinal match against Juan Martín del Potro.
Novak Djokovic won the title, his third at the US Open and 14th Grand Slam title overall, tying Pete Sampras, defeating del Potro in the final, 6–3, 7–6$^{(7–4)}$, 6–3.

#### Main Draw Finals

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final |
| 1 | Rafael Nadal | 0 | 6 | 7 | 6$^4$ | 7$^7$ | | | | | | | | | | |
| 9 | Dominic Thiem | 6 | 4 | 5 | 7$^7$ | 6$^5$ | | | | | | | | | | |
| 9 | Dominic Thiem | 6 | 4 | 5 | 7$^7$ | 6$^5$ | 1 | Rafael Nadal | 6$^3$ | 2 | 0$^r$ | | | | | |
| | | | | | | | 3 | Juan Martín del Potro | 7$^7$ | 6 | 0 | | | | | |
| 3 | Juan Martín del Potro | 6$^5$ | 6 | 7$^7$ | 6 | | 3 | Juan Martín del Potro | 7$^7$ | 6 | 0 | | | | | |
| 11 | John Isner | 7$^7$ | 3 | 6$^4$ | 2 | | | | | | | | | | | |
| 11 | John Isner | 7$^7$ | 3 | 6$^4$ | 2 | | | | | | | 3 | Juan Martín del Potro | 3 | 6$^4$ | 3 |
| | | | | | | | | | | | | 6 | Novak Djokovic | 6 | 7$^7$ | 6 |
| 7 | Marin Čilić | 6 | 4 | 6$^5$ | 6 | 4 | | | | | | | | | | | 6 | Novak Djokovic | 6 | 7$^7$ | 6 |
| 21 | Kei Nishikori | 2 | 6 | 7$^7$ | 4 | 6 | | | | | | | | | | |
| 21 | Kei Nishikori | 2 | 6 | 7$^7$ | 4 | 6 | 21 | Kei Nishikori | 3 | 4 | 2 | | | | | |
| | | | | | | | 6 | Novak Djokovic | 6 | 6 | 6 | | | | | |
| 6 | Novak Djokovic | 6 | 6 | 6 | | | 6 | Novak Djokovic | 6 | 6 | 6 | | | | | |
| | John Millman | 3 | 4 | 4 | | | | | | | | | | | | |

### WTA – US Open (New York)

Sloane Stephens was the defending champion, but lost to Anastasija Sevastova in the quarterfinals.
Naomi Osaka won the title by defeating Serena Williams in the final, 6–2, 6–4.

#### Main Draw Finals

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| 17 | Serena Williams | 6 | 6 | | | | | | | | |
| 8 | Karolína Plíšková | 4 | 3 | | | | | | | | |
| 8 | Karolína Plíšková | 4 | 3 | 17 | Serena Williams | 6 | 6 | | | | |
| | | | | 19 | Anastasija Sevastova | 3 | 0 | | | | |
| 3 | Sloane Stephens | 2 | 3 | 19 | Anastasija Sevastova | 3 | 0 | | | | |
| 19 | Anastasija Sevastova | 6 | 6 | | | | | | | | |
| 19 | Anastasija Sevastova | 6 | 6 | | | | | 17 | Serena Williams | 2 | 4 |
| | | | | | | | | 20 | Naomi Osaka | 6 | 6 |
| 30 | Carla Suárez Navarro | 4 | 3 | | | | | | | | | 20 | Naomi Osaka | 6 | 6 |
| 14 | Madison Keys | 6 | 6 | | | | | | | | |
| 14 | Madison Keys | 6 | 6 | 14 | Madison Keys | 2 | 4 | | | | |
| | | | | 20 | Naomi Osaka | 6 | 6 | | | | |
| 20 | Naomi Osaka | 6 | 6 | 20 | Naomi Osaka | 6 | 6 | | | | |
| | Lesia Tsurenko | 1 | 1 | | | | | | | | |