Stadium: Centre Court Round: 27 Ground: Clay
| ATP Kitzbuhel MD | 2020/09/09 15:35 | Marach O / Melzer J v Londero J I / Ramos-Vinolas A | 6-2,6-2 |
| Coupe Davis | 2020/03/07 12:00 | Marach O / Melzer J v Behar A / Cuevas P | 4-6,6-3,7-5 |
| ATP Cup, Playoffs | 2020/01/08 04:55 | Marach O / Melzer J v Hurkacz H / Kubot L | 6-7,6-3,11-9 |
| ATP Cup, Playoffs | 2020/01/06 11:25 | Marach O / Melzer J v Gonzalez/Molteni | 6-1,6-4 |
| ATP Cup, Playoffs | 2020/01/04 12:50 | Marach O / Melzer J v Dodig I / Mektic N | 6-7,2-6 |
| ATP Vienna MD | 2019/10/23 15:05 | Marach O / Melzer J v Bopanna R / Shapovalov D | 6-7,2-6 |
| ATP Antwerp MD | 2019/10/16 12:50 | Marach O / Melzer J v Lorenzi P / Sinner J | 3-6,1-6 |
| Shanghai, Chine, Doubles | 2019/10/07 04:30 | Cabal / Farah v Marach O / Melzer J | 6-3,6-3 |
| ATP Kitzbuhel MD | 2020/09/09 15:15 | Demoliner M / Middelkoop M v Ofner S / Rodionov J | 7-5,6-4 |
| US Open MD | 2020/09/05 15:00 | Murray J / Skupski N v Demoliner M / Middelkoop M | 6-3,6-2 |
| US Open MD | 2020/09/03 20:25 | Demoliner M / Middelkoop M v Mahut/Struff | 6-7,7-6,6-3 |
| ATP - Santiago - Doubles Hommes | 2020/02/27 18:50 | Demoliner M / Middelkoop M v Barrios Vera/Tabilo | 6-1,3-6,8-10 |
| ATP - Santiago - Doubles Hommes | 2020/02/25 18:15 | Demoliner M / Middelkoop M v Dellien H / Goransson A | 5-7,6-3,10-8 |
| ATP - Rio de Janeiro - Doubles Hommes | 2020/02/19 19:30 | Jebavy R / Zelenay I v Demoliner M / Middelkoop M | 5-7,6-3,10-8 |
| ATP - Buenos Aires - Doubles Hommes | 2020/02/15 19:40 | Granollers/Zeballos v Demoliner M / Middelkoop M | 6-2,7-5 |
| ATP - Buenos Aires - Doubles Hommes | 2020/02/13 18:00 | Demoliner M / Middelkoop M v Munar J / Ruud C | 6-3,6-4 |