| Challenger Series TT | 2022/10/10 12:30 | Karl Zimmermann v Sven Happek | W | 0-3 |
| Challenger Series TT | 2022/12/12 20:10 | Jeromy Loffler v Sven Happek | L | 3-2 |
| Challenger Series TT | 2022/12/12 17:30 | Makoto Nogami v Sven Happek | W | 0-3 |
| Challenger Series TT | 2022/12/12 14:50 | Sven Happek v Kenan Hrnic | W | 3-2 |
| Challenger Series TT | 2022/12/12 11:30 | Sven Happek v Marius Henninger | L | 1-3 |
| Challenger Series TT | 2022/12/12 09:30 | Sven Happek v Anton Limonov | L | 1-3 |
| Challenger Series TT | 2022/12/06 10:10 | Sven Happek v John Oyebode | L | 2-3 |
| Challenger Series TT | 2022/12/05 20:50 | Sven Happek v Salim Karam | W | 3-1 |
| Challenger Series TT | 2022/12/05 18:10 | Sven Happek v Amirreza Abbasi | L | 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 |
| Challenger Series TT | 2022/11/11 08:50 | Karl Zimmermann v Dillon Chambers | W | 3-0 |
| Challenger Series TT | 2022/11/10 20:10 | Karl Zimmermann v Martin Andersen | L | 2-3 |