| 2021 Citi Open | |
|---|---|
| Date | July 31 – August 8 |
| Edition | 52nd |
| Category | ATP Tour 500 |
| Surface | Hard (outdoor) SportMaster Sport Surfaces |
| Location | Washington, D.C., United States |
| Champions | |
| Singles | |
 Jannik Sinner | |
| Doubles | |
 Raven Klaasen / Ben McLachlan | |
The2021Washington Open (called the Citi Open for sponsorship reasons) was atennis tournament played on outdoorhard courts. It was the 52nd edition of the Washington Open. The event was part of theATP Tour 500 series of the2021 ATP Tour and part of theUS Open Series leading up to the US Open grand slam in September. The Washington Open took place at theWilliam H.G. FitzGerald Tennis Center in Washington, D.C., United States, from July 31 to August 8, 2021.[1]
Jannik Sinner def.
Mackenzie McDonald 7–5, 4–6, 7–5Raven Klaasen /Ben McLachlan def.
Neal Skupski /
Michael Venus 7–6(7–4), 6–4.| Event | W | F | SF | QF | Round of 16 | Round of 32 | Round of 64 | Q | Q2 | Q1 |
| Singles[2] | 500 | 300 | 180 | 90 | 45 | 20 | 0 | 10 | 4 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|
| Doubles[2] | 0 | N/a | N/a | 45 | 25 |
| Event | W | F | SF | QF | Round of 16 | Round of 32 | Round of 64 | Q | Q2 | Q1 |
| Singles | €350,755 | €178,500 | €91,500 | €48,000 | €24,400 | €13,300 | €7,520 | N/a | €3,685 | 1,970 |
| Doubles* | €118,700 | €60,000 | €30,500 | €15,970 | €8,250 | N/a | N/a | N/a | N/a | N/a |
*per team
| Country | Player | Rank1 | Seed |
|---|---|---|---|
 ESP | Rafael Nadal | 3 | 1 |
 CAN | Félix Auger-Aliassime | 15 | 2 |
 AUS | Alex de Minaur | 18 | 3 |
 BUL | Grigor Dimitrov | 21 | 4 |
| ITA | Jannik Sinner | 23 | 5 |
| GBR | Dan Evans | 27 | 6 |
| GBR | Cameron Norrie | 29 | 7 |
| USA | Reilly Opelka | 36 | 8 |
 KAZ | Alexander Bublik | 39 | 9 |
| USA | Taylor Fritz | 42 | 10 |
| AUS | John Millman | 44 | 11 |
| USA | Sebastian Korda | 47 | 12 |
 FRA | Benoît Paire | 49 | 13 |
| RSA | Lloyd Harris | 51 | 14 |
 SRB | Miomir Kecmanović | 52 | 15 |
| USA | Frances Tiafoe | 54 | 16 |
The following players received wild cards into the singles main draw:
The following players received entry from the singlesqualifying draw:
Hubert Hurkacz → replaced by
Emil RuusuvuoriJohn Isner → replaced byAndreas Seppi
Aslan Karatsev → replaced by
Daniel Elahi GalánKaren Khachanov → replaced byMackenzie McDonald
Dominik Koepfer → replaced by
Ilya Ivashka
Kwon Soon-woo → replaced byJames DuckworthJaume Munar → replaced byKevin Anderson
Guido Pella → replaced bySteve JohnsonAlbert Ramos Viñolas → replaced byJordan ThompsonMilos Raonic → replaced by
Ričardas BerankisDenis Shapovalov → replaced byEgor Gerasimov| Country | Player | Country | Player | Rank1 | Seed |
|---|---|---|---|---|---|
| AUS | John Peers |  SVK | Filip Polášek | 36 | 1 |
| GBR | Neal Skupski | NZL | Michael Venus | 36 | 2 |
 IND | Rohan Bopanna |  CRO | Ivan Dodig | 53 | 3 |
| RSA | Raven Klaasen | JPN | Ben McLachlan | 61 | 4 |
The following pairs received wildcards into the doubles main draw:
The following pair received entry from the doubles qualifying draw:
Juan Sebastián Cabal /Robert Farah → replaced byFabrice Martin /Max Purcell
Wesley Koolhof /Jean-Julien Rojer → replaced byGrigor Dimitrov /Tommy PaulŁukasz Kubot /
Marcelo Melo → replaced byMarcus Daniell /Marcelo MeloNikola Mektić /Mate Pavić → replaced by
Marcelo Arévalo /Matwé MiddelkoopJamie Murray /Bruno Soares → replaced bySebastian Korda /Jannik SinnerRajeev Ram /Joe Salisbury → replaced byAlexander Bublik /Andrey GolubevBetween 2011 and 2019, the Citi Open hosted conjoining men and women tournaments. However, amid theCOVID-19 pandemic in 2020, theWomen's Tennis Association (WTA) revoked its sanction of the Citi Open for the year's tour and added two events to its provisional calendar instead: theTop Seed Open inLexington, Kentucky and thePrague Open.[4] After the Citi Open returned in 2021 from the event's eventual cancellation in the prior year,[5] the WTA stayed its revocation of the event's sanction, so the women's tournament did not return as many women's players had scheduling conflicts with the2020 Summer Olympics.[6] In its place, event officials created the inaugural women's invitational as a three-day exhibition during theUS Open Series.Coco Gauff,Jessica Pegula, andJennifer Brady were the three original headliners,[7][8] though Brady was later replaced byVictoria Azarenka.[9]
The players played in a round-robin format; the winner of each pair in their first matches would then play each other in the final match.[9][10] The games were played in a best-of-three set format with regular scoring and a 10-point "super tiebreak" to decide the third set. The player with the best record would be crowned the champion and in the case of a tie, the winner would be decided by the player who won the most sets or games. Because the tournament was not sanctioned by the WTA, the players would not accrue or lose any points. The prize money for the inaugural champion was set at $25,000.[11] On August 5, Gauff defeated Azarenka in the first match, 6–3, 6–1.[9][10] Azarenka was scheduled to play Pegula the following day, after Brady withdrew from the tournament, to decide the final match, but Azarenka herself later withdrew from the invitational after suffering an ankle injury.[12] On August 7, Pegula defeated Gauff in the final match, 4–6, 7–5, [10-8], to win the invitational.[13]
