Stadium: Ameron Round: 1
| German Premier League | 2020/08/25 10:20 | de Greef, Arthur v Henri Squire | 6-1,6-3 |
| German Masters | 2020/08/24 17:20 | de Greef, Arthur v Neal Lasowski | 6-1,6-0 |
| Challenger Prague 2 | 2020/08/23 10:35 | Zdenek Kolar v de Greef, Arthur | 6-4,6-1 |
| Challenger - Prague | 2020/08/18 12:50 | de Greef, Arthur v Maden, Yannick | 3-6,4-6 |
| Challenger - Prague | 2020/08/16 11:50 | de Greef, Arthur v Enzo Couacaud | 6-2,6-0 |
| Nur Sultan, Kazakhstan | 2020/03/10 06:00 | de Greef, Arthur v Alex Molcan | 6-2,2-6,6-2 |
| Challenger - Pau | 2020/02/24 13:05 | de Greef, Arthur v Mukund Sasikumar | 7-6,6-7,6-7 |
| Bergamo, Italy | 2020/02/18 13:05 | Krstin, Pedja v de Greef, Arthur | 6-2,6-4 |
| German Premier League | 2020/08/25 11:30 | Stefan Palosi v Neal Lasowski | 6-2,6-3 |
| German Premier League | 2020/08/24 08:20 | Netuschil, Marvin v Stefan Palosi | 6-7,7-6,3-6 |
| German Premier League | 2020/08/21 17:00 | Stefan Palosi v Karlo Cubelic | 3-6,4-6 |
| German Premier League | 2020/08/20 15:40 | Elmar Ejupovic v Stefan Palosi | 6-4,6-2 |
| German Premier League | 2020/08/19 11:00 | Vladyslav Orlov v Stefan Palosi | 6-4,3-6,4-6 |
| German Premier League | 2020/08/18 13:00 | Stefan Palosi v Henri Squire | 6-7,5-7 |
| German Premier League | 2020/08/17 11:40 | Mats Rosenkranz v Stefan Palosi | 6-4,6-3 |
| German Premier League | 2020/08/15 15:00 | Yanki Erel v Stefan Palosi | 7-6,6-3 |