| Doubles | |
|---|---|
| 2021 Murray River Open | |
| Champions |  Nikola Mektić Mate Pavić |
| Runners-up |  Jérémy Chardy Fabrice Martin |
| Final score | 7–6(7–2), 6–3 |
The Murray River Open was a new addition to the ATP Tour in 2021.
Top seeds Nikola Mektić and Mate Pavić won the title, defeating Jérémy Chardy and Fabrice Martin in the final, 7–6(7–2), 6–3.
Nikola Mektić / Mate Pavić (Champions)
Wesley Koolhof / 
Łukasz Kubot (Quarterfinals)
Rajeev Ram / 
Joe Salisbury (Second round)
Marcelo Melo / 
Horia Tecău (Quarterfinals) Jérémy Chardy / Fabrice Martin (Final)
Sander Gillé / Joran Vliegen (Quarterfinals) Ken Skupski / Neal Skupski (Second round) Marcelo Demoliner / 
Santiago González (Semifinals)| Semifinals | Final | ||||||||||||
| 1 | Nikola Mektić Mate Pavić | 64 | 7 | [10] | |||||||||
 Ariel Behar  Gonzalo Escobar | 77 | 5 | [7] | ||||||||||
| 1 | Nikola Mektić Mate Pavić | 77 | 6 | ||||||||||
| 5 | Jérémy Chardy Fabrice Martin | 62 | 3 | ||||||||||
| 8 | Marcelo Demoliner Santiago González | 64 | 77 | [8] | |||||||||
| 5 | Jérémy Chardy Fabrice Martin | 77 | 62 | [10] | |||||||||
| First Round | Second Round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | N Mektić M Pavić | 77 | 2 | [10] | |||||||||||||||||||||||
 T Brkić  A-u-H Qureshi | 6 | 6 | T Brkić A-u-H Qureshi | 65 | 6 | [7] | |||||||||||||||||||||
 M Cecchinato L Sonego | 4 | 2 | 1 | N Mektić M Pavić | 77 | 3 | [10] | ||||||||||||||||||||
 A Molteni  H Nys | 4 | 2 | 6 | S Gillé J Vliegen | 64 | 6 | [6] | ||||||||||||||||||||
| PR | M McDonald T Paul | 6 | 6 | PR | M McDonald T Paul | 4 | 77 | [8] | |||||||||||||||||||
| 6 | S Gillé J Vliegen | 6 | 64 | [10] | |||||||||||||||||||||||
| 1 | N Mektić M Pavić | 64 | 7 | [10] | |||||||||||||||||||||||
| A Behar G Escobar | 77 | 5 | [7] | ||||||||||||||||||||||||
| 4 | M Melo H Tecău | 78 | 6 | ||||||||||||||||||||||||
 N Kyrgios M Reid | 5 | 4 | N Monroe F Tiafoe | 66 | 2 | ||||||||||||||||||||||
| N Monroe F Tiafoe | 7 | 6 | 4 | M Melo H Tecău | 64 | 3 | |||||||||||||||||||||
| WC | A Harris A Popyrin | 1 | 2 | A Behar G Escobar | 77 | 6 | |||||||||||||||||||||
| A Behar G Escobar | 6 | 6 | A Behar G Escobar | 77 | 4 | [10] | |||||||||||||||||||||
| 7 | K Skupski N Skupski | 64 | 6 | [7] | |||||||||||||||||||||||
| First Round | Second Round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 8 | M Demoliner S González | 6 | 6 | ||||||||||||||||||||||||
 R Bopanna  F Nielsen | 4 | 3 | WC | J Duckworth M Polmans | 4 | 2 | |||||||||||||||||||||
| WC | J Duckworth M Polmans | 6 | 6 | 8 | M Demoliner S González | 4 | 7 | [10] | |||||||||||||||||||
| C Norrie J O'Mara | 6 | 6 | C Norrie J O'Mara | 6 | 5 | [3] | |||||||||||||||||||||
 R Berankis  M Kukushkin | 3 | 4 | C Norrie J O'Mara | 4 | 6 | [10] | |||||||||||||||||||||
| 3 | R Ram J Salisbury | 6 | 3 | [7] | |||||||||||||||||||||||
| 8 | M Demoliner S González | 64 | 77 | [8] | |||||||||||||||||||||||
| 5 | J Chardy F Martin | 77 | 62 | [10] | |||||||||||||||||||||||
| 5 | J Chardy F Martin | 77 | 6 | ||||||||||||||||||||||||
G Durán  A Ramos Viñolas | 6 | 3 | [8] | D Sharan  I Zelenay | 65 | 4 | |||||||||||||||||||||
| D Sharan I Zelenay | 4 | 6 | [10] | 5 | J Chardy F Martin | 710 | 6 | ||||||||||||||||||||
| Alt | H Bourchier J Kubler | 1 | 6 | [6] | 2 | W Koolhof Ł Kubot | 68 | 3 | |||||||||||||||||||
 R Albot  E Gerasimov | 6 | 4 | [10] | R Albot E Gerasimov | 2 | 6 | [7] | ||||||||||||||||||||
| 2 | W Koolhof Ł Kubot | 6 | 3 | [10] | |||||||||||||||||||||||
Johan Brunström and Raven Klaasen were the defending champions but decided not to participate.
Tristan Lamasine and Fabrice Martin were the defending champions but chose not to defend their title.
This was the first edition of the tournament.
Jérémy Chardy and Fabrice Martin were the defending champions, but Chardy chose not to participate this year and Martin chose to compete in Brisbane instead.
Pierre-Hugues Herbert and Nicolas Mahut won the Men's Doubles tennis title at the 2018 French Open, defeating Oliver Marach and Mate Pavić in the final, 6–2, 7–6(7–4). Herbert and Mahut were the third all-French team to reach the French Open men's doubles final in six years.
Henri Kontinen and John Peers were the defending champions, but lost in the second round to Robert Lindstedt and Dominic Thiem.
Pierre-Hugues Herbert and Nicolas Mahut were the defending champions, but chose not to defend their title.
Bob and Mike Bryan were the defending champions, but chose not to participate this year.
Nikola Mektić and Alexander Peya were the defending champions, but Peya could not participate due to injury. Mektić played alongside Franko Škugor but lost in the second round to Wesley Koolhof and Stefanos Tsitsipas.
Kevin Krawietz and Andreas Mies won the Men's Doubles tennis title at the 2019 French Open defeating Jeremy Chardy and Fabrice Martin in the final 6-2, 7-6(7–3). Chardy and Martin were the fourth all-French team to reach the French Open men's doubles final in seven years, and for the second time in three years none of the four players had previously played in a Grand Slam men's doubles final.
Mike Bryan and Jack Sock were the defending champions, but Sock could not participate due to injury. Mike Bryan played alongside his brother Bob, but lost in the third round to Nicolas Mahut and Édouard Roger-Vasselin.
Alexander Peya and Nicole Melichar were the defending champions, but Peya could not participate this year due to injury. Melichar played alongside Bruno Soares but lost in the quarterfinals to Yang Zhaoxuan and Matwé Middelkoop.
Juan Sebastián Cabal and Robert Farah won their second consecutive Grand Slam men's doubles title, defeating Marcel Granollers and Horacio Zeballos in the final, 6–4, 7–5 to win the Men's Doubles tennis title at the 2019 US Open. Cabal and Farah retained the ATP no. 1 doubles ranking. Mike Bryan, Łukasz Kubot and Nicolas Mahut were also in contention for the top ranking at the start of the tournament.
Rajeev Ram and Joe Salisbury won the Men's Doubles tennis title at the 2020 Australian Open, defeating wildcards Max Purcell and Luke Saville in the final, 6–4, 6–2.
Jérémy Chardy and Fabrice Martin were the defending champions, but Chardy chose not to participate and Martin chose to compete in Rio de Janeiro instead.
Juan Sebastián Cabal and Robert Farah were the two-time defending champions, but lost in the second round to Rohan Bopanna and Denis Shapovalov.
Kevin Krawietz and Andreas Mies were the defending champions and successfully defended their title, defeating Mate Pavić and Bruno Soares in the final, 6–3, 7–5.
Pierre-Hugues Herbert and Nicolas Mahut were the defending champions, but lost in the quarterfinals to Łukasz Kubot and Marcelo Melo.
Jonathan Erlich and Artem Sitak were the defending champions, but Sitak chose not to participate this year. Erlich partnered up with Andrei Vasilevski, but they lost to Jérémy Chardy and Fabrice Martin in the first round.
Rajeev Ram and Joe Salisbury are the defending champions.
| 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 | |