| Doubles | |
|---|---|
| 2021 Atlanta Open | |
| Champions |  Reilly Opelka  Jannik Sinner |
| Runners-up | Steve Johnson  Jordan Thompson |
| Score | 6–4, 6–7(6–8), [10–3] |
Dominic Inglot and Austin Krajicek were the reigning champions from when the tournament was last held in 2019, [1] but chose not to participate this year.
Reilly Opelka and Jannik Sinner won the title, defeating Steve Johnson and Jordan Thompson in the final, 6–4, 6–7(6–8), [10–3].
Luke Bambridge / Ken Skupski (quarterfinals)
Jonathan Erlich / 
Santiago González (first round)
Aisam-ul-Haq Qureshi / 
Divij Sharan (first round) Matthew Ebden / John-Patrick Smith (quarterfinals)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | L Bambridge K Skupski | 6 | 66 | [10] | |||||||||||||||||||||||
| L Glasspool N Monroe | 3 | 78 | [6] | 1 | L Bambridge K Skupski | 6 | 4 | [6] | |||||||||||||||||||
 A Göransson  F Nielsen | 64 | 6 | [9] | A Popyrin M Reid | 3 | 6 | [10] | ||||||||||||||||||||
| A Popyrin M Reid | 77 | 2 | [11] | A Popyrin M Reid | 6 | 3 | [8] | ||||||||||||||||||||
| 3 | A-u-H Qureshi D Sharan | 1 | 3 | S Johnson J Thompson | 4 | 6 | [10] | ||||||||||||||||||||
| WC | N Kyrgios J Sock | 6 | 6 | WC | N Kyrgios J Sock | 3 | 4 | ||||||||||||||||||||
| S Johnson J Thompson | 6 | 7 | S Johnson J Thompson | 6 | 6 | ||||||||||||||||||||||
| N Lammons J Withrow | 4 | 5 | S Johnson J Thompson | 4 | 78 | [3] | |||||||||||||||||||||
 M Arévalo MÁ Reyes-Varela | 6 | 6 | R Opelka J Sinner | 6 | 66 | [10] | |||||||||||||||||||||
| WC | K Chopra A Martin | 1 | 4 | M Arévalo MÁ Reyes-Varela | 6 | 3 | [11] | ||||||||||||||||||||
| T Fritz C Norrie | 2 | 61 | 4 | M Ebden J-P Smith | 3 | 6 | [9] | ||||||||||||||||||||
| 4 | M Ebden J-P Smith | 6 | 77 | M Arévalo MÁ Reyes-Varela | 3 | 4 | |||||||||||||||||||||
 T Huey  B Paire | 77 | 77 | R Opelka J Sinner | 6 | 6 | ||||||||||||||||||||||
 H Heliövaara E Ruusuvuori | 62 | 62 | T Huey B Paire | 64 | 4 | ||||||||||||||||||||||
| R Opelka J Sinner | 6 | 6 | R Opelka J Sinner | 77 | 6 | ||||||||||||||||||||||
| 2 | J Erlich S González | 2 | 2 | ||||||||||||||||||||||||
Treat Conrad Huey and Dominic Inglot were the defending champions but Inglot decided not to participate.
Huey played alongside Bobby Reynolds.
John Peers and John-Patrick Smith defeated Jarmere Jenkins and Jack Sock 7–5, 6–1 in the final.
Chris Eaton and Dominic Inglot were the defending champions but decided not to participate.
Alex Kuznetsov and Mischa Zverev defeated Tennys Sandgren and Rhyne Williams 6–4, 6–7(7–4), [10–5] in the final to capture the title.
Nikolay Davydenko and Denis Istomin were the defending champions, but Davydenko retired from professional tennis in October 2014. Istomin played alongside Alexander Kudryavtsev, but they lost in the first round to Dominic Inglot and Florin Mergea.
Marcus Daniell and Artem Sitak won the title, defeating Inglot and Mergea in the final, 3–6, 6–4, [16–14].
Lucie Hradecká and Michaëlla Krajicek were the defending champions, but Hradecká chose not to participate this year. Krajicek played alongside Karolína Plíšková, but lost in the quarterfinals to Belinda Bencic and Kateřina Siniaková.
Ivo Karlović and Łukasz Kubot were the defending champions, but Karlović chose not to participate this year and Kubot chose to compete in Stuttgart instead.
Mate Pavić and Michael Venus won the title, defeating Dominic Inglot and Raven Klaasen in the final, 3–6, 6–3, [11–9].
Pierre-Hugues Herbert and Nicolas Mahut were the defending champions, but lost in the semifinals to Jamie Murray and Bruno Soares.
Mate Pavić and Michael Venus were the defending champions, but Venus chose to compete in Delray Beach instead. Pavić played alongside Alexander Peya, but lost in the quarterfinals to Robin Haase and Dominic Inglot.
Pete Sampras was the defending champion, but did not participate.
Dominic Inglot and Mate Pavić were the defending champions, but Pavić chose not to participate this year. Inglot played alongside Marcus Daniell, but lost in the quarterfinals to Divij Sharan and Jan-Lennard Struff.
Dominic Inglot and Franko Škugor were the defending champions, but Škugor chose to compete in Barcelona instead. Inglot played alongside Rohan Bopanna, but lost in the quarterfinals to Andre Begemann and Ernests Gulbis.
Ivan Dodig and Rajeev Ram were the defending champions, but Dodig chose not to participate and Ram chose to compete in Estoril instead.
Defending champion Dominic Inglot and his partner, Austin Krajicek, defeated Marcus Daniell and Wesley Koolhof in the final, 6–4, 4–6, [10–4], to win the men's doubles tennis title at the 2019 Rosmalen Grass Court Championships. It was the first time Inglot and Krajicek had competed as a team, and the victory earned Inglot his 12th career ATP Tour doubles title and Krajicek his second. Daniell and Koolhof were contesting to win their second title of the season together.
Luke Bambridge and Jonny O'Mara were the defending champions but they lost in the first round to Dan Evans and Lloyd Glasspool.
Juan Sebastián Cabal and Robert Farah defeated Nicolas Mahut and Édouard Roger-Vasselin in the final, 6–7(5–7), 7–6(7–5), 7–6(8–6), 6–7(5–7), 6–3 to win the men's doubles tennis title at the 2019 Wimbledon Championships. Cabal and Farah saved five match points en route to the title, against Jean-Julien Rojer and Horia Tecău in the quarterfinals. With the win, they jointly attained the ATP number one doubles ranking; Mike Bryan, Łukasz Kubot and Bruno Soares were also in contention for the top ranking.
Nicholas Monroe and John-Patrick Smith were the defending champions, but chose not to participate together. Monroe played alongside Frances Tiafoe, but lost in the first round to Marcelo Arévalo and Miguel Ángel Reyes-Varela. Smith teamed up with Ben McLachlan but lost in the quarterfinals to Jack Sock and Jackson Withrow.
Marcelo Arévalo and Miguel Ángel Reyes-Varela were the defending champions, but lost in the first round to Hans Hach Verdugo and Dennis Novikov.
Ivan Dodig and Mate Pavić were the defending champions, but Pavić chose not to participate this year. Dodig played alongside Filip Polášek, but lost in the semifinals to Jonathan Erlich and Fabrice Martin.
Kevin Krawietz and Andreas Mies were the defending champions but chose to compete in Rotterdam instead.
Hugo Nys and Tim Pütz defeated Luke Bambridge and Dominic Inglot in the final, 7–5, 3–6, [10–3], to win the doubles tennis title at the 2021 Estoril Open. It was Nys and Pütz's first title as a team in their second tournament together on the ATP Tour, marking Nys's second and Pütz's third individual career tour-level doubles titles. Bambridge and Inglot were in contention for their first title as a team after reaching their first tour-level final without dropping a set.
Wesley Koolhof and Neal Skupski defeated Matthew Ebden and Max Purcell in the final, 4–6, 7–5, [10–6] to win the men's doubles tennis title at the 2022 Rosmalen Grass Court Championships.
| Grand Slam events | |
|---|---|
| ATP Tour Masters 1000 | |
| ATP Tour 500 | |
| ATP Tour 250 |
|
| Team events | |
 – Tournaments are affected by the COVID-19 pandemic * – Tournaments are introduced due to the impact of the COVID-19 pandemic | |