2018 US Open Series

{{Use mdy dates|date=January 2025}} 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 Tennis Championships|Atlanta]] and concluded in [[Connecticut Open (tennis)|Connecticut]] for the women and in [[Winston-Salem Open|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.<ref>{{Cite web|url=http://www.usopenseries.com/About-Us/about_the_us_open_series_/|title=About the US Open Series|website=usopenseries.com|access-date=July 10, 2018}}</ref><ref name=":0">{{Cite web|url=http://www.usopenseries.com/tickets/|title=Tickets|website=usopenseries.com|access-date=July 10, 2018}}</ref> The series was headlined by two [[ATP World Tour Masters 1000]] and two [[WTA Premier tournaments|WTA Premier 5 events]].

==Tournament Schedule== {| class="wikitable" ! Legend |- style=background:#e5d1cb; | [[Grand Slam (Tennis)|Grand Slam Event]] |- style=background:#dfe2e9; | [[ATP Masters 1000]] and [[WTA Premier tournaments|WTA Premier 5]] |- style=background:#d0f0c0; | [[ATP World Tour 500]] and [[WTA Premier tournaments|WTA Premier]] |- group4style=background:#ffffff; | [[ATP World Tour 250]] and [[WTA International tournaments|WTA International]] |}

{| class="wikitable" |- !width=30| Week !width=175| Date<ref name=":0" /> !width=350| Men's Events !width=350| Women's Events |- align=center |1 || July 23 – July 29 || bgcolor="#ffffff" | [[2018 BB&T Atlanta Open|Atlanta]] ''BB&T Atlanta Open'' '''2018 Champion''': {{flagicon|USA}} [[John Isner]] || No Series Event Held This Week |- align=center |2 || July 30 – August 5 || No Series Event Held This Week || bgcolor=#d0f0c0 | [[2018 Silicon Valley Classic|San Jose]] ''Silicon Valley Classic'' '''2018 Champion''': {{flagicon|ROU}} [[Mihaela Buzărnescu]] |- align=center |3 || August 6 – August 12 || bgcolor=#dfe2e9 | [[2018 Rogers Cup|Toronto]] ''Rogers Cup presented by National Bank'' '''2018 Champion''': {{flagicon|ESP}} [[Rafael Nadal]] || bgcolor=#dfe2e9 | [[2018 Rogers Cup|Montreal]] ''Rogers Cup presented by National Bank'' '''2018 Champion''': {{flagicon|ROU}} [[Simona Halep]] |- align=center |4 || August 13 – August 19 || bgcolor=#dfe2e9 | [[2018 Western & Southern Open|Cincinnati]] ''Western & Southern Open'' '''2018 Champion''': {{flagicon|SRB}} [[Novak Djokovic]] || bgcolor=#dfe2e9 | [[2018 Western & Southern Open|Cincinnati]] ''Western & Southern Open'' '''2018 Champion''': {{flagicon|NED}} [[Kiki Bertens]] |- align=center |5 || August 20 – August 26 || bgcolor=#ffffff | [[2018 Winston-Salem Open|Winston-Salem]] ''Winston-Salem Open'' '''2018 Champion''': {{flagicon|RUS}} [[Daniil Medvedev]] || bgcolor=#d0f0c0 | [[2018 Connecticut Open|New Haven]] ''Connecticut Open'' '''2018 Champion''': {{flagicon|BLR}} [[Aryna Sabalenka]] |- align=center |6–7 || August 27 – September 9 || bgcolor=#e5d1cb | [[2018 US Open (tennis)|New York]] ''US Open'' '''2018 Champion''': {{flagicon|SRB}} [[Novak Djokovic]] || bgcolor="e5d1cb | [[2018 US Open (tennis)|New York]] ''US Open'' '''2018 Champion''': {{flagicon|JPN}} [[Naomi Osaka]] |}

==Week 1==

===ATP – BB&T Atlanta Open=== {{main|2018 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==== {{8TeamBracket-Tennis3 | RD1= | RD2= | RD3= | RD1-group1= | RD1-group2=

| score-width= | team-width=

| RD1-seed1=1 | RD1-team1='''{{flagicon|USA}} [[John Isner]]''' | RD1-score1-1='''7''' | RD1-score1-2=4 | RD1-score1-3='''6''' | RD1-seed2=7 | RD1-team2={{flagicon|GER}} [[Mischa Zverev]] | RD1-score2-1=5 | RD1-score2-2='''6''' | RD1-score2-3=1

| RD1-seed3=4 | RD1-team3='''{{flagicon|AUS}} [[Matthew Ebden]]''' | RD1-score3-1='''6''' | RD1-score3-2='''6''' | RD1-score3-3= | RD1-seed4= | RD1-team4={{flagicon|CYP}} [[Marcos Baghdatis]] | RD1-score4-1=3 | RD1-score4-2=2 | RD1-score4-3=

| RD1-seed5=8 | RD1-team5='''{{flagicon|USA}} [[Ryan Harrison (tennis)|Ryan Harrison]]''' | RD1-score5-1=63 | RD1-score5-2='''6''' | RD1-score5-3='''77''' | RD1-seed6=3/WC | RD1-team6={{flagicon|KOR}} [[Chung Hyeon]] | RD1-score6-1='''77''' | RD1-score6-2=2 | RD1-score6-3=65

| RD1-seed7= | RD1-team7='''{{flagicon|GBR}} [[Cameron Norrie]]''' | RD1-score7-1='''7''' | RD1-score7-2=3 | RD1-score7-3= | RD1-seed8=2 | RD1-team8={{flagicon|AUS}} [[Nick Kyrgios]] | RD1-score8-1=5 | RD1-score8-2=0r | RD1-score8-3=

|RD2-seed1=1 |RD2-team1='''{{flagicon|USA}} [[John Isner]]''' |RD2-score1-1='''6''' |RD2-score1-2=66 |RD2-score1-3='''6''' |RD2-seed2=4 |RD2-team2={{flagicon|AUS}} [[Matthew Ebden]] |RD2-score2-1=4 |RD2-score2-2='''78''' |RD2-score2-3=1

|RD2-seed3=8 |RD2-team3='''{{flagicon|USA}} [[Ryan Harrison (tennis)|Ryan Harrison]]''' |RD2-score3-1=2 |RD2-score3-2='''6''' |RD2-score3-3='''6''' |RD2-seed4=  |RD2-team4={{flagicon|GBR}} [[Cameron Norrie]] |RD2-score4-1='''6''' |RD2-score4-2=3 |RD2-score4-3=2

|RD3-seed1=1 |RD3-team1='''{{flagicon|USA}} [[John Isner]]''' |RD3-score1-1=5 |RD3-score1-2='''6''' |RD3-score1-3='''6''' |RD3-seed2=8 |RD3-team2={{flagicon|USA}} [[Ryan Harrison (tennis)|Ryan Harrison]] |RD3-score2-1='''7''' |RD3-score2-2=3 |RD3-score2-3=4 }}

==Week 2==

===WTA – Silicon Valley Classic (San Jose)=== {{main|2018 Silicon Valley Classic}}

[[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==== {{8TeamBracket-Tennis3 | RD1=Quarterfinals | RD2=Semifinals | RD3=Final

|team-width=175

| RD1-seed1= | RD1-team1={{flagicon|BLR}} [[Victoria Azarenka]] | RD1-score1-1='''77''' | RD1-score1-2=0r | RD1-score1-3= | RD1-seed2= | RD1-team2='''{{flagicon|USA}} [[Danielle Collins]]''' | RD1-score2-1=64 | RD1-score2-2=3 | RD1-score2-3=

| RD1-seed3=3/WC | RD1-team3={{flagicon|USA}} [[Venus Williams]] | RD1-score3-1=4 | RD1-score3-2=62 | RD1-score3-3= | RD1-seed4=  | RD1-team4='''{{flagicon|GRE}} [[Maria Sakkari]]''' | RD1-score4-1='''6''' | RD1-score4-2='''77''' | RD1-score4-3=

| RD1-seed5=  | RD1-team5={{flagicon|GBR}} [[Johanna Konta]] | RD1-score5-1=64 | RD1-score5-2=3 | RD1-score5-3= | RD1-seed6=4 | RD1-team6='''{{flagicon|BEL}} [[Elise Mertens]]''' | RD1-score6-1='''77''' | RD1-score6-2='''6''' | RD1-score6-3=

| RD1-seed7=5 | RD1-team7='''{{flagicon|ROU}} [[Mihaela Buzărnescu]]''' | RD1-score7-1='''6''' | RD1-score7-2='''7''' | RD1-score7-3= | RD1-seed8=  | RD1-team8={{flagicon|AUS}} [[Ajla Tomljanović]] | RD1-score8-1=1 | RD1-score8-2=5 | RD1-score8-3=

|RD2-seed1=  |RD2-team1={{flagicon|USA}} [[Danielle Collins]] |RD2-score1-1='''6''' |RD2-score1-2=5 |RD2-score1-3=2 |RD2-seed2=  |RD2-team2='''{{flagicon|GRE}} [[Maria Sakkari]]''' |RD2-score2-1=3 |RD2-score2-2='''7''' |RD2-score2-3='''6'''

|RD2-seed3=4 |RD2-team3={{flagicon|BEL}} [[Elise Mertens]] |RD2-score3-1='''6''' |RD2-score3-2=3 |RD2-score3-3=1 |RD2-seed4=5 |RD2-team4='''{{flagicon|ROU}} [[Mihaela Buzărnescu]]''' |RD2-score4-1=4 |RD2-score4-2='''6''' |RD2-score4-3='''6'''

|RD3-seed1=  |RD3-team1={{flagicon|GRE}} [[Maria Sakkari]] |RD3-score1-1=1 |RD3-score1-2=0 |RD3-score1-3= |RD3-seed2=5 |RD3-team2='''{{flagicon|ROU}} [[Mihaela Buzărnescu]]''' |RD3-score2-1='''6''' |RD3-score2-2='''6''' |RD3-score2-3= }}

==Week 3==

===ATP – Rogers Cup (Toronto)=== {{main|2018 Rogers Cup – Men's Singles}}

[[Alexander Zverev]] was the defending champion,<ref>{{cite web |url=https://www.atpworldtour.com/en/tournaments/toronto/421/overview |title=Rogers Cup Overview |publisher=ATP World Tour |accessdate=1 August 2018}}</ref> 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==== {{8TeamBracket-Tennis3 | RD1=Quarterfinals | RD2=Semifinals | RD3=Final

|team-width=175

|RD1-seed1=1 |RD1-team1='''{{flagicon|ESP}} [[Rafael Nadal]]''' |RD1-score1-1=2 |RD1-score1-2='''6''' |RD1-score1-3='''6''' |RD1-seed2=6 |RD1-team2={{flagicon|CRO}} [[Marin Čilić]] |RD1-score2-1='''6''' |RD1-score2-2=4 |RD1-score2-3=4

|RD1-seed3= |RD1-team3={{flagicon|NED}} [[Robin Haase]] |RD1-score3-1=3 |RD1-score3-2=1 |RD1-score3-3= |RD1-seed4= |RD1-team4='''{{flagicon|RUS}} [[Karen Khachanov]]''' |RD1-score4-1='''6''' |RD1-score4-2='''6''' |RD1-score4-3=

|RD1-seed5=5 |RD1-team5={{flagicon|BUL}} [[Grigor Dimitrov]] |RD1-score5-1=2 |RD1-score5-2=2 |RD1-score5-3= |RD1-seed6=4 |RD1-team6='''{{flagicon|RSA}} [[Kevin Anderson (tennis)|Kevin Anderson]]''' |RD1-score6-1='''6''' |RD1-score6-2='''6''' |RD1-score6-3=

|RD1-seed7= |RD1-team7='''{{flagicon|GRE}} [[Stefanos Tsitsipas]]''' |RD1-score7-1=3 |RD1-score7-2='''713''' |RD1-score7-3='''6''' |RD1-seed8=2 |RD1-team8={{flagicon|GER}} [[Alexander Zverev]] |RD1-score8-1='''6''' |RD1-score8-2=611 |RD1-score8-3=4

|RD2-seed1=1 |RD2-team1='''{{flagicon|ESP}} [[Rafael Nadal]]''' |RD2-score1-1='''77''' |RD2-score1-2='''6''' |RD2-score1-3= |RD2-seed2= |RD2-team2={{flagicon|RUS}} [[Karen Khachanov]] |RD2-score2-1=63 |RD2-score2-2=4 |RD2-score2-3=

|RD2-seed3=4 |RD2-team3={{flagicon|RSA}} [[Kevin Anderson (tennis)|Kevin Anderson]] |RD2-score3-1='''77''' |RD2-score3-2=4 |RD2-score3-3=67 |RD2-seed4= |RD2-team4='''{{flagicon|GRE}} [[Stefanos Tsitsipas]]''' |RD2-score4-1=64 |RD2-score4-2='''6''' |RD2-score4-3='''79'''

|RD3-seed1=1 |RD3-team1='''{{flagicon|ESP}} [[Rafael Nadal]]''' |RD3-score1-1='''6''' |RD3-score1-2='''77''' |RD3-score1-3= |RD3-seed2= |RD3-team2={{flagicon|GRE}} [[Stefanos Tsitsipas]] |RD3-score2-1=2 |RD3-score2-2=64 |RD3-score2-3= }}

===WTA – Rogers Cup (Montreal)=== {{main|2018 Rogers Cup – Women's Singles}} [[Elina Svitolina]] was the defending champion,<ref>{{cite web |url=http://www.wtatennis.com/tournament/wta-toronto-montreal#results|title=Coupe Rogers présentée par Banque Nationale Overview |publisher=WTA Tour |accessdate=3 August 2018}}</ref> 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==== {{8TeamBracket-Tennis3 |RD1=Quarterfinals |RD2=Semifinals |RD3=Final

|team-width=175

|RD1-seed1=1 |RD1-team1='''{{flagicon|ROU}} [[Simona Halep]]''' |RD1-score1-1='''7''' |RD1-score1-2='''6''' |RD1-score1-3= |RD1-seed2=6 |RD1-team2={{flagicon|FRA}} [[Caroline Garcia]] |RD1-score2-1=5 |RD1-score2-2=1 |RD1-score2-3=

|RD1-seed3=15 |RD1-team3='''{{flagicon|AUS}} [[Ashleigh Barty]]''' |RD1-score3-1='''6''' |RD1-score3-2='''6''' |RD1-score3-3= |RD1-seed4= |RD1-team4={{flagicon|NED}} [[Kiki Bertens]] |RD1-score4-1=3 |RD1-score4-2=1 |RD1-score4-3=

|RD1-seed5= |RD1-team5={{flagicon|LAT}} [[Anastasija Sevastova]] |RD1-score5-1=2 |RD1-score5-2=2 |RD1-score5-3= |RD1-seed6=3 |RD1-team6='''{{flagicon|USA}} [[Sloane Stephens]]''' |RD1-score6-1='''6''' |RD1-score6-2='''6''' |RD1-score6-3=

|RD1-seed7=5 |RD1-team7='''{{flagicon|UKR}} [[Elina Svitolina]]''' |RD1-score7-1='''7''' |RD1-score7-2='''6''' |RD1-score7-3= |RD1-seed8=14 |RD1-team8={{flagicon|BEL}} [[Elise Mertens]] |RD1-score8-1=5 |RD1-score8-2=3 |RD1-score8-3=

|RD2-seed1=1 |RD2-team1='''{{flagicon|ROU}} [[Simona Halep]]''' |RD2-score1-1='''6''' |RD2-score1-2='''6''' |RD2-score1-3= |RD2-seed2=15 |RD2-team2={{flagicon|AUS}} [[Ashleigh Barty]] |RD2-score2-1=4 |RD2-score2-2=1 |RD2-score2-3=

|RD2-seed3=3 |RD2-team3='''{{flagicon|USA}} [[Sloane Stephens]]''' |RD2-score3-1='''6''' |RD2-score3-2='''6''' |RD2-score3-3= |RD2-seed4=5 |RD2-team4={{flagicon|UKR}} [[Elina Svitolina]] |RD2-score4-1=3 |RD2-score4-2=3 |RD2-score4-3=

|RD3-seed1=1 |RD3-team1='''{{flagicon|ROU}} [[Simona Halep]]''' |RD3-score1-1='''78''' |RD3-score1-2=3 |RD3-score1-3='''6''' |RD3-seed2=3 |RD3-team2={{flagicon|USA}} [[Sloane Stephens]] |RD3-score2-1=66 |RD3-score2-2='''6''' |RD3-score2-3=4 }}

==Week 4==

===ATP – Western & Southern Open (Cincinnati) === {{main|2018 Western & Southern Open – Men's Singles}}

[[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 in tennis|1990]].

====Main Draw Finals==== {{8TeamBracket-Tennis3 |RD1=Quarterfinals |RD2=Semifinals |RD3=Final

|team-width=175

|RD1-seed1= |RD1-team1={{flagicon|CAN}} [[Milos Raonic]] |RD1-score1-1=5 |RD1-score1-2='''6''' |RD1-score1-3=3 |RD1-seed2=10 |RD1-team2='''{{flagicon|SRB}} [[Novak Djokovic]]''' |RD1-score2-1='''7''' |RD1-score2-2=4 |RD1-score2-3='''6'''

|RD1-seed3=13 |RD1-team3={{flagicon|ESP}} [[Pablo Carreño Busta]] |RD1-score3-1=67 |RD1-score3-2=4 |RD1-score3-3= |RD1-seed4=7 |RD1-team4='''{{flagicon|CRO}} [[Marin Čilić]]''' |RD1-score4-1='''79''' |RD1-score4-2='''6''' |RD1-score4-3=

|RD1-seed5=11 |RD1-team5='''{{flagicon|BEL}} [[David Goffin]]''' |RD1-score5-1='''77''' |RD1-score5-2='''77''' |RD1-score5-3= |RD1-seed6=4 |RD1-team6={{flagicon|ARG}} [[Juan Martín del Potro]] |RD1-score6-1=65 |RD1-score6-2=64 |RD1-score6-3=

|RD1-seed7=WC |RD1-team7={{flagicon|SUI}} [[Stan Wawrinka]] |RD1-score7-1='''77''' |RD1-score7-2=66 |RD1-score7-3=2 |RD1-seed8=2 |RD1-team8='''{{flagicon|SUI}} [[Roger Federer]]''' |RD1-score8-1=62 |RD1-score8-2='''78''' |RD1-score8-3='''6'''

|RD2-seed1=10 |RD2-team1='''{{flagicon|SRB}} [[Novak Djokovic]]''' |RD2-score1-1='''6''' |RD2-score1-2=3 |RD2-score1-3='''6''' |RD2-seed2=7 |RD2-team2={{flagicon|CRO}} [[Marin Čilić]] |RD2-score2-1=4 |RD2-score2-2='''6''' |RD2-score2-3=3

|RD2-seed3=11 |RD2-team3={{flagicon|BEL}} [[David Goffin]] |RD2-score3-1=63 |RD2-score3-2=1r |RD2-score3-3= |RD2-seed4=2 |RD2-team4='''{{flagicon|SUI}} [[Roger Federer]]''' |RD2-score4-1='''77''' |RD2-score4-2=1 |RD2-score4-3=

|RD3-seed1=10 |RD3-team1='''{{flagicon|SRB}} [[Novak Djokovic]]''' |RD3-score1-1='''6''' |RD3-score1-2='''6''' |RD3-score1-3= |RD3-seed2=2 |RD3-team2={{flagicon|SUI}} [[Roger Federer]] |RD3-score2-1=4 |RD3-score2-2=4 |RD3-score2-3= }}

===WTA – Western & Southern Open (Cincinnati) === {{main|2018 Western & Southern Open – Women's Singles}}

[[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==== {{8TeamBracket-Tennis3-v2 |RD1=Quarterfinals |RD2=Semifinals |RD3=Final

|team-width=175

|RD1-seed1=1 |RD1-team1='''{{flagicon|ROU}} [[Simona Halep]]''' |RD1-score1-1='''6''' |RD1-score1-2='''6''' |RD1-score1-3= |RD1-seed2= |RD1-team2={{flagicon|UKR}} [[Lesia Tsurenko]] |RD1-score2-1=4 |RD1-score2-2=1 |RD1-score2-3=

|RD1-seed3=13 |RD1-team3={{flagicon|USA}} [[Madison Keys]] |RD1-score3-1=3 |RD1-score3-2=4 |RD1-score3-3= |RD1-seed4= |RD1-team4='''{{flagicon|BLR}} [[Aryna Sabalenka]]''' |RD1-score4-1='''6''' |RD1-score4-2='''6''' |RD1-score4-3=

|RD1-seed5=8 |RD1-team5='''{{flagicon|CZE}} [[Petra Kvitová]]''' |RD1-score5-1='''7''' |RD1-score5-2=5 |RD1-score5-3='''6''' |RD1-seed6=15 |RD1-team6={{flagicon|BEL}} [[Elise Mertens]] |RD1-score6-1=5 |RD1-score6-2='''7''' |RD1-score6-3=3

|RD1-seed7=5 |RD1-team7={{flagicon|UKR}} [[Elina Svitolina]] |RD1-score7-1=4 |RD1-score7-2=3 |RD1-score7-3= |RD1-seed8= |RD1-team8='''{{flagicon|NED}} [[Kiki Bertens]]''' |RD1-score8-1='''6''' |RD1-score8-2='''6''' |RD1-score8-3=

|RD2-seed1=1 |RD2-team1='''{{flagicon|ROU}} [[Simona Halep]]''' |RD2-score1-1='''6''' |RD2-score1-2='''6''' |RD2-score1-3= |RD2-seed2= |RD2-team2={{flagicon|BLR}} [[Aryna Sabalenka]] |RD2-score2-1=3 |RD2-score2-2=4 |RD2-score2-3=

|RD2-seed3=8 |RD2-team3={{flagicon|CZE}} [[Petra Kvitová]] |RD2-score3-1='''6''' |RD2-score3-2=4 |RD2-score3-3=2 |RD2-seed4= |RD2-team4='''{{flagicon|NED}} [[Kiki Bertens]]''' |RD2-score4-1=3 |RD2-score4-2='''6''' |RD2-score4-3='''6'''

|RD3-seed1=1 |RD3-team1={{flagicon|ROU}} [[Simona Halep]] |RD3-score1-1='''6''' |RD3-score1-2=66 |RD3-score1-3=2 |RD3-seed2= |RD3-team2='''{{flagicon|NED}} [[Kiki Bertens]]''' |RD3-score2-1=2 |RD3-score2-2='''78''' |RD3-score2-3='''6''' }}

==Week 5==

===ATP – Winston-Salem Open === {{main|2018 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 (tennis)|Steve Johnson]] in the final, 6–4, 6–4.

====Main Draw Finals==== {{8TeamBracket-Tennis3-v2 |RD1=Quarterfinals |RD2=Semifinals |RD3=Final

|team-width=175

|RD1-seed1= |RD1-team1='''{{flagicon|RUS}} [[Daniil Medvedev]]''' |RD1-score1-1='''77''' |RD1-score1-2='''6''' |RD1-score1-3= |RD1-seed2= |RD1-team2={{flagicon|USA}} [[Ryan Harrison]] |RD1-score2-1=64 |RD1-score2-2=4 |RD1-score2-3=

|RD1-seed3=14 |RD1-team3={{flagicon|CHI}} [[Nicolás Jarry]] |RD1-score3-1='''6''' |RD1-score3-2=2 |RD1-score3-3=1 |RD1-seed4= |RD1-team4='''{{flagicon|JPN}} [[Taro Daniel]]''' |RD1-score4-1=4 |RD1-score4-2='''6''' |RD1-score4-3='''6'''

|RD1-seed5=8 |RD1-team5='''{{flagicon|USA}} [[Steve Johnson (tennis)|Steve Johnson]]''' |RD1-score5-1='''6''' |RD1-score5-2='''6''' |RD1-score5-3= |RD1-seed6=3/WC |RD1-team6={{flagicon|GBR}} [[Kyle Edmund]] |RD1-score6-1=1 |RD1-score6-2=2 |RD1-score6-3=

|RD1-seed7=6 |RD1-team7={{flagicon|KOR}} [[Chung Hyeon]] |RD1-score7-1=3 |RD1-score7-2=4 |RD1-score7-3= |RD1-seed8=2 |RD1-team8='''{{flagicon|ESP}} [[Pablo Carreño Busta]]''' |RD1-score8-1='''6''' |RD1-score8-2='''6''' |RD1-score8-3=

|RD2-seed1= |RD2-team1='''{{flagicon|RUS}} [[Daniil Medvedev]]''' |RD2-score1-1='''6''' |RD2-score1-2='''6''' |RD2-score1-3= |RD2-seed2= |RD2-team2={{flagicon|JPN}} [[Taro Daniel]] |RD2-score2-1=1 |RD2-score2-2=1 |RD2-score2-3=

|RD2-seed3=8 |RD2-team3='''{{flagicon|USA}} [[Steve Johnson (tennis)|Steve Johnson]]''' |RD2-score3-1='''6''' |RD2-score3-2='''6''' |RD2-score3-3= |RD2-seed4=2 |RD2-team4={{flagicon|ESP}} [[Pablo Carreño Busta]] |RD2-score4-1=3 |RD2-score4-2=4 |RD2-score4-3=

|RD3-seed1= |RD3-team1='''{{flagicon|RUS}} [[Daniil Medvedev]]''' |RD3-score1-1='''6''' |RD3-score1-2='''6''' |RD3-score1-3= |RD3-seed2=8 |RD3-team2={{flagicon|USA}} [[Steve Johnson (tennis)|Steve Johnson]] |RD3-score2-1=4 |RD3-score2-2=4 |RD3-score2-3= }}

===WTA – Connecticut Open (New Haven)=== {{main|2018 Connecticut Open}}

[[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==== {{8TeamBracket-Tennis3 | RD1= Quarterfinals | RD2= Semifinals | RD3= Final | RD1-group1= | RD1-group2=

| score-width= | team-width=

| RD1-seed1=LL | RD1-team1={{flagicon|SUI}} [[Belinda Bencic]] | RD1-score1-1=3 | RD1-score1-2=2 | RD1-score1-3= | RD1-seed2= | RD1-team2='''{{flagicon|BLR}} [[Aryna Sabalenka]]''' | RD1-score2-1='''6''' | RD1-score2-2='''6''' | RD1-score2-3=

| RD1-seed3= | RD1-team3={{flagicon|RUS}} [[Ekaterina Makarova]] | RD1-score3-1=4 | RD1-score3-2=2 | RD1-score3-3= | RD1-seed4=5 | RD1-team4='''{{flagicon|GER}} [[Julia Görges]]''' | RD1-score4-1='''6''' | RD1-score4-2='''6''' | RD1-score4-3=

| RD1-seed5= | RD1-team5='''{{flagicon|ESP}} [[Carla Suárez Navarro]]''' | RD1-score5-1='''6''' | RD1-score5-2=0 | RD1-score5-3= | RD1-seed6=3 | RD1-team6={{flagicon|CZE}} [[Petra Kvitová]] | RD1-score6-1=3 | RD1-score6-2=0r | RD1-score6-3=

| RD1-seed7=Q | RD1-team7='''{{flagicon|PUR}} [[Monica Puig]]''' | RD1-score7-1='''7''' | RD1-score7-2=1 | RD1-score7-3='''6''' | RD1-seed8=2 | RD1-team8={{flagicon|FRA}} [[Caroline Garcia]] | RD1-score8-1=5 | RD1-score8-2='''6''' | RD1-score8-3=2

|RD2-seed1=  |RD2-team1='''{{flagicon|BLR}} [[Aryna Sabalenka]]''' |RD2-score1-1='''6''' |RD2-score1-2='''77''' |RD2-score1-3= |RD2-seed2=5 |RD2-team2={{flagicon|GER}} [[Julia Görges]] |RD2-score2-1=4 |RD2-score2-2=63 |RD2-score2-3=

|RD2-seed3=  |RD2-team3='''{{flagicon|ESP}} [[Carla Suárez Navarro]]''' |RD2-score3-1=4 |RD2-score3-2= |RD2-score3-3= |RD2-seed4=Q |RD2-team4={{flagicon|PUR}} [[Monica Puig]] |RD2-score4-1=4r |RD2-score4-2= |RD2-score4-3=

|RD3-seed1=  |RD3-team1='''{{flagicon|BLR}} [[Aryna Sabalenka]]''' |RD3-score1-1='''6''' |RD3-score1-2='''6''' |RD3-score1-3= |RD3-seed2=  |RD3-team2={{flagicon|ESP}} [[Carla Suárez Navarro]] |RD3-score2-1=1 |RD3-score2-2=4 |RD3-score2-3=

}}

==Weeks 6–7==

===ATP – US Open (New York)=== {{main|2018 US Open – Men's Singles}}

[[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 [[List of Grand Slam related tennis records#Men|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==== {{8TeamBracket-Tennis5 | RD1=Quarterfinals | RD2=Semifinals | RD3=Final | team-width=175

| RD1-seed1=1 | RD1-team1='''{{flagicon|ESP}} [[Rafael Nadal]]''' | RD1-score1-1=0 | RD1-score1-2='''6''' | RD1-score1-3='''7''' | RD1-score1-4=64 | RD1-score1-5='''77''' | RD1-seed2=9 | RD1-team2={{flagicon|AUT}} [[Dominic Thiem]] | RD1-score2-1='''6''' | RD1-score2-2=4 | RD1-score2-3=5 | RD1-score2-4='''77''' | RD1-score2-5=65

| RD1-seed3=3 | RD1-team3='''{{flagicon|ARG}} [[Juan Martín del Potro]]''' | RD1-score3-1=65 | RD1-score3-2='''6''' | RD1-score3-3='''77''' | RD1-score3-4='''6''' | RD1-score3-5= | RD1-seed4=11 | RD1-team4={{flagicon|USA}} [[John Isner]] | RD1-score4-1='''77''' | RD1-score4-2=3 | RD1-score4-3=64 | RD1-score4-4=2 | RD1-score4-5=

| RD1-seed5=7 | RD1-team5={{flagicon|CRO}} [[Marin Čilić]] | RD1-score5-1='''6''' | RD1-score5-2=4 | RD1-score5-3=65 | RD1-score5-4='''6''' | RD1-score5-5=4 | RD1-seed6=21 | RD1-team6='''{{flagicon|JPN}} [[Kei Nishikori]]''' | RD1-score6-1=2 | RD1-score6-2='''6''' | RD1-score6-3='''77''' | RD1-score6-4=4 | RD1-score6-5='''6'''

| RD1-seed7=6 | RD1-team7='''{{flagicon|SRB}} [[Novak Djokovic]]''' | RD1-score7-1='''6''' | RD1-score7-2='''6''' | RD1-score7-3='''6''' | RD1-score7-4= | RD1-score7-5= | RD1-seed8= | RD1-team8={{flagicon|AUS}} [[John Millman]] | RD1-score8-1=3 | RD1-score8-2=4 | RD1-score8-3=4 | RD1-score8-4= | RD1-score8-5=

| RD2-seed1=1 | RD2-team1={{flagicon|ESP}} [[Rafael Nadal]] | RD2-score1-1=63 | RD2-score1-2=2 | RD2-score1-3=0r | RD2-score1-4= | RD2-score1-5= | RD2-seed2=3 | RD2-team2='''{{flagicon|ARG}} [[Juan Martín del Potro]]''' | RD2-score2-1='''77''' | RD2-score2-2='''6''' | RD2-score2-3=0 | RD2-score2-4= | RD2-score2-5=

| RD2-seed3=21 | RD2-team3={{flagicon|JPN}} [[Kei Nishikori]] | RD2-score3-1=3 | RD2-score3-2=4 | RD2-score3-3=2 | RD2-score3-4= | RD2-score3-5= | RD2-seed4=6 | RD2-team4='''{{flagicon|SRB}} [[Novak Djokovic]]''' | RD2-score4-1='''6''' | RD2-score4-2='''6''' | RD2-score4-3='''6''' | RD2-score4-4= | RD2-score4-5=

| RD3-seed1=3 | RD3-team1={{flagicon|ARG}} [[Juan Martín del Potro]] | RD3-score1-1=3 | RD3-score1-2=64 | RD3-score1-3=3 | RD3-score1-4= | RD3-score1-5= | RD3-seed2=6 | RD3-team2='''{{flagicon|SRB}} [[Novak Djokovic]]''' | RD3-score2-1='''6''' | RD3-score2-2='''77''' | RD3-score2-3='''6''' | RD3-score2-4= | RD3-score2-5= }}

===WTA – US Open (New York)=== {{main|2018 US Open – Women's Singles}}

[[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==== {{8TeamBracket-Tennis3 |RD1=Quarterfinals |RD2=Semifinals |RD3='''[[2018 US Open – Women's Singles final|Final]]''' |team-width=175

|RD1-seed1=17 |RD1-team1='''{{flagicon|USA}} [[Serena Williams]]''' |RD1-score1-1='''6''' |RD1-score1-2='''6''' |RD1-score1-3= |RD1-seed2=8 |RD1-team2={{flagicon|CZE}} [[Karolína Plíšková]] |RD1-score2-1=4 |RD1-score2-2=3 |RD1-score2-3=

|RD1-seed3=3 |RD1-team3={{flagicon|USA}} [[Sloane Stephens]] |RD1-score3-1=2 |RD1-score3-2=3 |RD1-score3-3= |RD1-seed4=19 |RD1-team4='''{{flagicon|LAT}} [[Anastasija Sevastova]]''' |RD1-score4-1='''6''' |RD1-score4-2='''6''' |RD1-score4-3=

|RD1-seed5=30 |RD1-team5={{flagicon|ESP}} [[Carla Suárez Navarro]] |RD1-score5-1=4 |RD1-score5-2=3 |RD1-score5-3= |RD1-seed6=14 |RD1-team6='''{{flagicon|USA}} [[Madison Keys]]''' |RD1-score6-1='''6''' |RD1-score6-2='''6''' |RD1-score6-3=

|RD1-seed7=20 |RD1-team7='''{{flagicon|JPN}} [[Naomi Osaka]]''' |RD1-score7-1='''6''' |RD1-score7-2='''6''' |RD1-score7-3= |RD1-seed8= |RD1-team8={{flagicon|UKR}} [[Lesia Tsurenko]] |RD1-score8-1=1 |RD1-score8-2=1 |RD1-score8-3=

|RD2-seed1=17 |RD2-team1='''{{flagicon|USA}} [[Serena Williams]]''' |RD2-score1-1='''6''' |RD2-score1-2='''6''' |RD2-score1-3= |RD2-seed2=19 |RD2-team2={{flagicon|LAT}} [[Anastasija Sevastova]] |RD2-score2-1=3 |RD2-score2-2=0 |RD2-score2-3=

|RD2-seed3=14 |RD2-team3={{flagicon|USA}} [[Madison Keys]] |RD2-score3-1=2 |RD2-score3-2=4 |RD2-score3-3= |RD2-seed4=20 |RD2-team4='''{{flagicon|JPN}} [[Naomi Osaka]]''' |RD2-score4-1='''6''' |RD2-score4-2='''6''' |RD2-score4-3=

|RD3-seed1=17 |RD3-team1={{flagicon|USA}} [[Serena Williams]] |RD3-score1-1=2 |RD3-score1-2=4 |RD3-score1-3= |RD3-seed2=20 |RD3-team2='''{{flagicon|JPN}} [[Naomi Osaka]]''' |RD3-score2-1='''6''' |RD3-score2-2='''6''' |RD3-score2-3= }}

== References == {{reflist}}

==External links== * {{Official website|http://www.usopenseries.com}}

[[Category:2018 US Open Series| ]]