| Hellas Int. | 2021/09/03 10:05 | Matthias Kicklitz v Giovanni Toti | L | 1-2 |
| Hellas Int. Qual | 2021/09/02 15:30 | Matthias Kicklitz v Aaron Sonnenschein | W | 2-1 |
| Slovenia Int. | 2021/05/20 11:00 | Nikolov, Daniel v Matthias Kicklitz | L | 2-0 |
| Slovenia Int. | 2021/05/20 10:40 | Mateusz Danielak v Matthias Kicklitz | W | 0-2 |
| Portuguese Int. Qual | 2021/05/06 09:20 | Matthias Kicklitz v Enogat Roy | L | 1-2 |
| Belgian Int. Qual | 2019/09/11 12:20 | Matthias Kicklitz v Jaeger, Jonas | L | 1-2 |
| Latvia Int. Qual | 2019/05/31 07:00 | Matthias Kicklitz v Magnus Johannesen | L | 0-2 |
| Austrian Open Qual | 2021/05/27 08:30 | Maksimovic, Natan v Bar Netzer, M. | L | 0-2 |
| Slovenia Int. Qual | 2021/05/19 08:10 | Maksimovic, Natan v Adam Konczol | L | 0-2 |
| Slovenia Future Series Qual | 2019/11/21 08:25 | Maksimovic, Natan v Drexler, Philipp | L | 1-2 |