Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/06/20 12:50 | Jose Guillot v Sven Happek | L | 3-1 |
| Challenger Series TT | 2023/06/20 12:05 | Carlo Rossi v Sven Happek | L | 3-1 |
| Challenger Series TT | 2023/06/20 10:30 | Sven Happek v Carlo Rossi | W | 3-1 |
| Challenger Series TT | 2023/06/20 07:50 | Sven Happek v Akito Itagaki | W | 3-0 |
| Challenger Series TT | 2023/06/19 19:10 | Sven Happek v Aljaz Godec | W | 3-2 |
| Challenger Series TT | 2023/06/19 14:30 | Sven Happek v Marco Stefanidis | W | 3-1 |
| Challenger Series TT | 2023/06/19 12:30 | Sven Happek v Johannes Willeke | W | 3-1 |
| Challenger Series TT | 2023/06/19 09:10 | Dennis Klein v Sven Happek | L | 3-1 |
| TT Star Series | 2023/04/15 10:15 | David Reitspies v Ihor Zavadskyi | L | 3-0 |
| TT Star Series | 2023/04/15 08:15 | Jakub Zelinka v Ihor Zavadskyi | L | 3-0 |
| TT Star Series | 2023/04/14 13:45 | Ihor Zavadskyi v Antonin Gavlas | L | 0-3 |
| TT Star Series | 2023/04/14 11:45 | Ihor Zavadskyi v Filip Cipin | L | 2-3 |
| TT Star Series | 2023/04/14 07:45 | Radim Bako v Ihor Zavadskyi | W | 2-3 |
| WTT Feeder Ototec Quals | 2022/06/21 08:00 | Ihor Zavadskyi v Iskender Kharki | L | 1-3 |
| Challenger Ochsenhausen | 2021/02/24 18:21 | Robert Floras v Ihor Zavadskyi | L | 2-1 |
| Challenger Ochsenhausen | 2021/02/24 17:33 | Dariusz Wrobel v Ihor Zavadskyi | W | 0-3 |