Stadium: Center Court Round: 26 Ground: Hardcourt outdoor
| Challenger Istanbul | 2020/10/20 12:15 | Illya Marchenko v Martin Klizan | 6-7,3-6 |
| Challenger Split | 2020/10/01 11:55 | Martin Klizan v Duje Ajdukovic | 0-6,4-6 |
| Challenger Split | 2020/09/29 09:00 | Martin Klizan v Constant Lestienne | 4-6,6-3,6-4 |
| French Open | 2020/09/23 12:40 | Kimmer Coppejans v Martin Klizan | 2-6,6-2,6-4 |
| French Open | 2020/09/21 13:50 | Martin Klizan v Peter Gojowczyk | 6-2,6-7,6-4 |
| Challenger Prostejov | 2020/09/10 12:20 | Stefano Travaglia v Martin Klizan | 3-6,6-2,6-1 |
| Challenger Prostejov | 2020/09/09 12:25 | Martin Klizan v Pedro Martinez | 1-6,7-6,6-1 |
| Challenger Prostejov | 2020/09/07 15:15 | Alex Bolt v Martin Klizan | 3-6,3-6 |
| Challenger Istanbul | 2020/10/20 11:25 | Roberto Marcora v Mohamed Safwat | 7-6,6-0 |
| French Open | 2020/09/23 12:05 | Roberto Marcora v Tristan Lamasine | 7-6,3-6,6-3 |
| French Open | 2020/09/21 13:25 | Jeffrey John Wolf v Roberto Marcora | 4-6,3-6 |
| ATP Rome | 2020/09/12 09:30 | Filip Horansky v Roberto Marcora | 2-6,4-6 |
| Challenger Aix en Provence | 2020/09/08 08:00 | Alejandro Tabilo v Roberto Marcora | 7-5,7-5 |
| Challenger Cordenons | 2020/09/01 12:55 | Roberto Marcora v Benjamin Bonzi | 5-7,4-6 |
| Challenger Trieste | 2020/08/25 08:00 | Roberto Marcora v Tobias Kamke | 4-6,2-6 |
| Challenger Todi | 2020/08/18 10:00 | Roberto Marcora v Bernabe Zapata Miralles | 3-6,1-6 |