 Austria: Kitzbuhel - Doubles - Main |
|---|
| Semi-finals | Granollers M./Zeballos H. | Marach O./Melzer J. | 2:0 (6:1, 6:4) | details | 12.09.2020 |
| Quarter-finals | Marach O./Melzer J. | Demoliner M./Middelkoop M. | 2:1 (7:5, 64:7, 11:9) | details | 11.09.2020 |
| 1/8-finals | Marach O./Melzer J. | Londero J. I./Ramos A. | 2:0 (6:2, 6:2) | details | 09.09.2020 |
 World: Davis Cup - World Group - Doubles - Qualification |
|---|
| | Marach O./Melzer J. | Behar A./Cuevas P. | 2:1 (4:6, 6:3, 7:5) | details | 07.03.2020 |
 Australia: ATP Cup - Doubles - Main |
|---|
| | Marach O./Melzer J. | Hurkacz H./Kubot L. | 2:1 (63:7, 6:3, 11:9) | details | 08.01.2020 |
| | Marach O./Melzer J. | Hurkacz H./Zuk K. | CAN. | details | 08.01.2020 |
| | Marach O./Melzer J. | Gonzalez M./Molteni A. | 2:0 (6:1, 6:4) | details | 06.01.2020 |
| | Marach O./Melzer J. | Dodig I./Mektic N. | 0:2 (64:7, 2:6) | details | 04.01.2020 |
| Austria: Vienna - Doubles - Main |
|---|
| 1/8-finals | Marach O./Melzer J. | Bopanna R./Shapovalov D. | 0:2 (66:7, 2:6) | details | 23.10.2019 |
 Belgium: Antwerp - Doubles - Main |
|---|
| 1/8-finals | Marach O./Melzer J. | Lorenzi P./Sinner J. | 0:2 (3:6, 1:6) | details | 16.10.2019 |
| 1/8-finals | Marach O./Melzer J. | Lopez F./Munar J. | CAN. | details | 15.10.2019 |
 China: Shanghai - Doubles - Main |
|---|
| 1/16-finals | Cabal J. S./Farah R. | Marach O./Melzer J. | 2:0 (6:3, 6:3) | details | 07.10.2019 |
 Japan: Tokyo - Doubles - Main |
|---|
| 1/8-finals | Marach O./Melzer J. | Pouille L./Struff J-L. | 1:2 (4:6, 7:64, 8:10) | details | 01.10.2019 |
| World: Davis Cup - Group I - Doubles - Relegation - Play Offs |
|---|
| | Kontinen H./Ruusuvuori E. | Marach O./Melzer J. | 0:2 (65:7, 2:6) | details | 14.09.2019 |
| | Heliovaara H./Kontinen H. | Marach O./Melzer J. | CAN. | details | 14.09.2019 |
 USA: US Open - Doubles - Main |
|---|
| Quarter-finals | Granollers M./Zeballos H. | Marach O./Melzer J. | 2:0 (7:64, 6:4) | details | 03.09.2019 |
| 1/8-finals | Marach O./Melzer J. | Kecmanovic M./Ruud C. | 2:0 (6:0, 6:3) | details | 02.09.2019 |
| 1/16-finals | Marach O./Melzer J. | Copil M./Kyrgios N. | WO. | details | 01.09.2019 |
| 1/32-finals | Marach O./Melzer J. | Kukushkin M./Rublev A. | 2:1 (64:7, 6:4, 6:4) | details | 30.08.2019 |
| USA: Winston-Salem - Doubles - Main |
|---|
| Quarter-finals | Murray J./Skupski N. | Marach O./Melzer J. | 2:1 (4:6, 7:65, 10:7) | details | 22.08.2019 |
| 1/8-finals | Marach O./Melzer J. | Chardy J./Martin F. | 2:0 (6:4, 6:4) | details | 19.08.2019 |
| USA: Cincinnati - Doubles - Main |
|---|
| 1/16-finals | Marach O./Melzer J. | Harrison R./Sock J. | 0:2 (2:6, 2:6) | details | 12.08.2019 |
 Canada: Montreal - Doubles - Main |
|---|
| 1/16-finals | Marach O./Melzer J. | Krajicek A./Venus M. | 1:2 (65:7, 7:65, 6:10) | details | 07.08.2019 |
| Austria: Kitzbuhel - Doubles - Main |
|---|
| Quarter-finals | Marach O./Melzer J. | Nielsen F./Puetz T. | 0:2 (3:6, 63:7) | details | 01.08.2019 |
| 1/8-finals | Marach O./Melzer J. | Mayer L./Molteni A. | 2:1 (7:69, 2:6, 10:3) | details | 30.07.2019 |
 Germany: Hamburg - Doubles - Main |
|---|
| Final | Haase R./Koolhof W. | Marach O./Melzer J. | 0:2 (2:6, 63:7) | details | 28.07.2019 |
| Semi-finals | Marach O./Melzer J. | Cuevas P./Jarry N. | 2:0 (7:62, 6:3) | details | 27.07.2019 |
| Quarter-finals | Bopanna R./Carreno-Busta P. | Marach O./Melzer J. | 0:2 (1:6, 4:6) | details | 25.07.2019 |
| 1/8-finals | Cecchinato M./Paire B. | Marach O./Melzer J. | 0:2 (2:6, 1:6) | details | 24.07.2019 |
 Croatia: Umag - Doubles - Main |
|---|
| Final | Marach O./Melzer J. | Haase R./Oswald P. | 1:2 (5:7, 7:62, 12:14) | details | 20.07.2019 |
| Semi-finals | Marach O./Melzer J. | Mayer L./Molteni A. | 2:0 (7:65, 7:5) | details | 19.07.2019 |
| Quarter-finals | Marach O./Melzer J. | Cacic N./Lajovic D. | 2:0 (6:2, 6:3) | details | 17.07.2019 |
| 1/8-finals | Marach O./Melzer J. | Sousa P./Travaglia S. | 2:0 (6:2, 7:62) | details | 16.07.2019 |
 United Kingdom: Wimbledon - Doubles - Main |
|---|
| 1/16-finals | Marach O./Melzer J. | Jebavy R./Oswald P. | 1:3 (5:7, 4:6, 7:5, 66:7) | details | 06.07.2019 |
| 1/32-finals | Marach O./Melzer J. | Hsieh C./Rungkat C. | 3:2 (6:3, 6:4, 1:6, 2:6, 11:9) | details | 03.07.2019 |
| Germany: Halle - Doubles - Main |
|---|
| Quarter-finals | Marach O./Melzer J. | Klaasen R./Venus M. | 0:2 (3:6, 69:7) | details | 20.06.2019 |
| 1/8-finals | Marach O./Melzer J. | Demoliner M./Sharan D. | 2:0 (7:5, 7:65) | details | 18.06.2019 |
| Germany: Stuttgart - Doubles - Main |
|---|
| Semi-finals | Peers J./Soares B. | Marach O./Melzer J. | 2:1 (7:64, 5:7, 10:6) | details | 14.06.2019 |
| Quarter-finals | Marach O./Melzer J. | Lindstedt R./Raonic M. | 2:0 (6:2, 6:4) | details | 13.06.2019 |
| 1/8-finals | Marach O./Melzer J. | Zverev A./Zverev M. | 2:0 (7:65, 6:3) | details | 11.06.2019 |
| World: Davis Cup - World Group - Doubles - Qualification |
|---|
| | Marach O./Melzer J. | Barrios Vera T./Podlipnik-Castillo H. | 2:1 (6:4, 2:6, 7:5) | details | 02.02.2019 |
| | Marach O./Melzer J. | Podlipnik-Castillo H./Peralta J. | CAN. | details | 02.02.2019 |
 France: Metz - Doubles - Main |
|---|
| Semi-finals | Skupski K./Skupski N. | Marach O./Melzer J. | 2:1 (4:6, 6:3, 10:5) | details | 21.09.2018 |
| Quarter-finals | Cerretani J./Erlich J. | Marach O./Melzer J. | 1:2 (3:6, 6:1, 5:10) | details | 20.09.2018 |
| 1/8-finals | Marach O./Melzer J. | Qureshi A./Sitak A. | 2:0 (6:4, 6:3) | details | 19.09.2018 |
| World: Davis Cup - World Group - Doubles - Relegation |
|---|
| | Marach O./Melzer J. | Hewitt L./Peers J. | 1:3 (1:6, 4:6, 6:3, 5:7) | details | 15.09.2018 |
| | Marach O./Melzer J. | Peers J./Thompson J. | CAN. | details | 15.09.2018 |
| World: Davis Cup Group I - Doubles - Main |
|---|
| | Marach O./Melzer J. | Huta-Galung J./Rojer J. | CAN. | details | 18.07.2015 |
| | Marach O./Melzer J. | Haase R./Rojer J. | 0:3 (3:6, 64:7, 65:7) | details | 18.07.2015 |
| Germany: Munich - Doubles - Main |
|---|
| 1/8-finals | Brown D./Knowle J. | Marach O./Melzer J. | 2:1 (63:7, 6:4, 10:3) | details | 29.04.2014 |
