Stadium: Court 1 Round: 27 Ground: Hardcourt indoor
| ATP Metz MD | 2021/09/21 13:40 | Marach O / Oswald P v Mahut N / Pospisil V | 6-4,6-3 |
| US Open MD | 2021/09/03 15:00 | Marach O / Oswald P v Erlich/Harris | 2-6,7-6,2-6 |
| ATP Winston-Salem MD | 2021/08/26 19:00 | Arevalo/Middelkoop v Marach O / Oswald P | 6-3,6-3 |
| ATP Winston-Salem MD | 2021/08/23 20:40 | Marach O / Oswald P v Gille/Vliegen | 7-6,5-7,10-4 |
| ATP Toronto MD | 2021/08/11 21:50 | Krawietz/Tecau v Marach O / Oswald P | 6-2,1-6,12-10 |
| ATP Toronto MD | 2021/08/09 19:55 | Behar A / Escobar G v Marach O / Oswald P | 7-5,3-6,11-13 |
| Olympics 2020 - MD | 2021/07/26 07:00 | Marach O / Oswald P v Cabal / Farah | 4-6,1-6 |
| Olympics 2020 - MD | 2021/07/25 09:00 | Millman J / Saville L v Marach O / Oswald P | 5-7,2-6 |
| ATP Metz MD | 2021/09/21 15:00 | Hurkacz/Zielinski v Walkow/Zelenay | 6-3,6-3 |