Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2022/12/13 09:30 | Kenan Hrnic v Karl Zimmermann | W | 1-3 |
| Challenger Series TT | 2022/12/13 08:10 | Sven Happek v Karl Zimmermann | W | 1-3 |
| Challenger Series TT | 2022/12/12 18:10 | Nikola Grujic v Karl Zimmermann | W | 1-3 |
| Challenger Series TT | 2022/12/12 16:10 | Marius Henninger v Karl Zimmermann | L | 3-2 |
| Challenger Series TT | 2022/12/12 13:30 | Jeromy Loffler v Karl Zimmermann | L | 3-1 |
| Challenger Series TT | 2022/12/12 12:10 | Anton Limonov v Karl Zimmermann | L | 3-0 |
| Challenger Series TT | 2022/12/12 07:30 | Makoto Nogami v Karl Zimmermann | L | 3-2 |
| Challenger Series TT | 2022/11/11 11:30 | Karl Zimmermann v Ronit Bhanja | L | 1-3 |
| WTT Feeder Dusseldorf II | 2023/02/22 12:30 | Dimitrije Levajac v Youssef Abdel-Aziz | L | 2-3 |
| WTT Feeder Dusseldorf II Quals | 2023/02/21 15:35 | Dimitrije Levajac v Baldwin Chan | W | 3-1 |
| WTT Feeder Dusseldorf Quals | 2023/02/14 15:00 | Dimitrije Levajac v Lilian Bardet | L | 1-3 |
| WTT Feeder Dusseldorf Quals | 2023/02/14 09:45 | Maciej Kolodziejczyk v Dimitrije Levajac | W | 0-3 |
| WTT Feeder Dusseldorf | 2022/11/22 16:05 | Tommaso Giovannetti v Dimitrije Levajac | L | 3-2 |
| Oman Open U21 Women | 2022/09/16 10:30 | Dimitrije Levajac v Csaba Andras | L | 1-4 |
| Oman Open U21 Women | 2022/09/15 10:35 | Dimitrije Levajac v Borgar Haug | W | 4-2 |
| WTT Feeder Panagyurishte | 2022/09/02 10:05 | Dimitrije Levajac v Wei Cao | L | 2-4 |