# 2021 Murray River Open – Doubles

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.

## Seeds

* 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)

## Draw
### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| 1 | Nikola Mektić Mate Pavić | 6$^4$ | 7 | [10] | | | | |
| | Ariel Behar Gonzalo Escobar | 7$^7$ | 5 | [7] | | | | |
| | Ariel Behar Gonzalo Escobar | 7$^7$ | 5 | [7] | 1 | Nikola Mektić Mate Pavić | 7$^7$ | 6 |
| | | | | | 5 | Jérémy Chardy Fabrice Martin | 6$^2$ | 3 |
| 8 | Marcelo Demoliner Santiago González | 6$^4$ | 7$^7$ | [8] | 5 | Jérémy Chardy Fabrice Martin | 6$^2$ | 3 |
| 5 | Jérémy Chardy Fabrice Martin | 7$^7$ | 6$^2$ | [10] | | | | |

### Top half

| First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| | | | | 1 | N Mektić M Pavić | 7$^7$ | 2 | [10] | | | | | | | | | | |
| | T Brkić A-u-H Qureshi | 6 | 6 | | T Brkić A-u-H Qureshi | 6$^5$ | 6 | [7] | | | | | | | | | | |
| | M Cecchinato L Sonego | 4 | 2 | | | | | | 1 | N Mektić M Pavić | 7$^7$ | 3 | [10] | | | | | |
| | A Molteni H Nys | 4 | 2 | | | | | | 6 | S Gillé J Vliegen | 6$^4$ | 6 | [6] | | | | | |
| PR | M McDonald T Paul | 6 | 6 | PR | M McDonald T Paul | 4 | 7$^7$ | [8] | | | | | | | | | | |
| | | | | 6 | S Gillé J Vliegen | 6 | 6$^4$ | [10] | | | | | | | | | | |
| | | | | | | | | | | | | | | 1 | N Mektić M Pavić | 6$^4$ | 7 | [10] |
| | | | | | | | | | | | | | | | A Behar G Escobar | 7$^7$ | 5 | [7] |
| | | | | 4 | M Melo H Tecău | 7$^8$ | 6 | | | | | | | | | | | |
| | N Kyrgios M Reid | 5 | 4 | | N Monroe F Tiafoe | 6$^6$ | 2 | | | | | | | | | | | |
| | N Monroe F Tiafoe | 7 | 6 | | | | | | 4 | M Melo H Tecău | 6$^4$ | 3 | | | | | | |
| WC | A Harris A Popyrin | 1 | 2 | | | | | | | A Behar G Escobar | 7$^7$ | 6 | | | | | | |
| | A Behar G Escobar | 6 | 6 | | A Behar G Escobar | 7$^7$ | 4 | [10] | | | | | | | | | | |
| | | | | 7 | K Skupski N Skupski | 6$^4$ | 6 | [7] | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | 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 | 6$^4$ | 7$^7$ | [8] |
| | | | | | | | | | | | | | | | 5 | J Chardy F Martin | 7$^7$ | 6$^2$ | [10] |
| | | | | | 5 | J Chardy F Martin | 7$^7$ | 6 | | | | | | | | | | | |
| | G Durán A Ramos Viñolas | 6 | 3 | [8] | | D Sharan I Zelenay | 6$^5$ | 4 | | | | | | | | | | | |
| | D Sharan I Zelenay | 4 | 6 | [10] | | | | | | 5 | J Chardy F Martin | 7$^{10}$ | 6 | | | | | | |
| Alt | H Bourchier J Kubler | 1 | 6 | [6] | | | | | | 2 | W Koolhof Ł Kubot | 6$^8$ | 3 | | | | | | |
| | R Albot E Gerasimov | 6 | 4 | [10] | | R Albot E Gerasimov | 2 | 6 | [7] | | | | | | | | | | |
| | | | | | 2 | W Koolhof Ł Kubot | 6 | 3 | [10] | | | | | | | | | | |