| Challenger Series TT | 2023/04/04 12:10 | Dennis Klein v Amirreza Abbasi | W | 3-2 |
| Challenger Series TT | 2023/04/04 10:05 | Dennis Klein v Kirill Fadeev | W | 3-0 |
| Challenger Series TT | 2023/04/04 09:10 | Dennis Klein v Emiliano Riofrio | W | 3-0 |
| Challenger Series TT | 2023/04/04 07:10 | Dennis Klein v Dauud Cheaib | W | 3-0 |
| Challenger Series TT | 2023/04/03 17:50 | Dennis Klein v Florian Bourrassaud | L | 2-3 |
| Challenger Series TT | 2023/04/03 14:30 | Dennis Klein v Kirill Fadeev | W | 3-2 |
| Challenger Series TT | 2023/04/03 12:30 | Dennis Klein v Sven Happek | W | 3-1 |
| Challenger Series TT | 2023/04/03 09:10 | Pekka Pelz v Dennis Klein | W | 0-3 |
| WTT Singapore Smash Quals | 2023/03/07 06:15 | Yonghun Lee v Cheng-Ting Liao | L | 0-3 |
| WTT Feeder Dusseldorf II | 2023/02/23 12:10 | Youssef Abdel-Aziz v Yonghun Lee | L | 3-1 |
| WTT Feeder Dusseldorf II | 2023/02/22 15:40 | Benno Oehme v Yonghun Lee | W | 2-3 |
| WTT - Feeder Düsseldorf | 2023/02/15 11:55 | Yonghun Lee v Martin Allegro | L | 1-3 |
| Campeonato do Mundo de Equipas | 2022/10/04 11:30 | Yonghun Lee v Liam Pitchford | L | 0-3 |
| Campeonato do Mundo de Equipas | 2022/09/30 09:00 | Yonghun Lee v Anton Kallberg | L | 0-3 |