| Giraldilla International DX | 2018/11/22 13:20 | Christo Popov v Kai Schaefer | W | 1-2 |
| Campionato europeo a squadre miste | 2023/02/14 15:00 | Kai Schaefer v Dimitar Yanakiev | W | 2-0 |
| Internazionali d'Estonia | 2023/01/13 10:20 | Jia Wei Joel Koh v Kai Schaefer | L | 2-1 |
| Open d'Olanda | 2022/10/13 11:55 | Ade Resky Dwicahyo v Kai Schaefer | L | 2-1 |
| Campionati mondiali | 2022/08/23 03:00 | Jonatan Christie v Kai Schaefer | L | 2-0 |
| Campionati mondiali | 2022/08/22 03:00 | Kantaphon Wangcharoen v Kai Schaefer | W | 0-2 |
| Open di Singapore - Qual. | 2022/07/12 03:40 | Kai Schaefer v Hongyang Weng | L | 0-2 |
| Open di Singapore - Qual. | 2022/07/12 01:20 | Kai Schaefer v Kalle Koljonen | W | 2-0 |
| Masters di Malaysia - Qual. | 2022/07/05 02:00 | Hongyang Weng v Kai Schaefer | L | 2-0 |
| Master d'Indonesia - Qual. | 2023/01/24 01:00 | Priyanshu Rajawat v Christo Popov | L | 2-0 |
| Internazionali del Galles | 2022/12/02 17:20 | Christo Popov v Mads Christophersen | L | 0-2 |
| Internazionali del Galles | 2022/12/02 11:00 | Christo Popov v Lucas Claerbout | W | 2-1 |
| Hylo Open | 2022/11/02 08:00 | Christo Popov v Kodai Naraoka | L | 1-2 |
| Open d'Olanda | 2022/10/16 11:20 | Mads Christophersen v Christo Popov | W | 0-2 |
| Open d'Olanda | 2022/10/15 13:00 | Christo Popov v Kantaphon Wangcharoen | W | 2-0 |
| Open d'Olanda | 2022/10/15 08:20 | Christo Popov v Julien Carraggi | W | 2-0 |
| Open d'Olanda | 2022/10/14 15:10 | Danylo Bosniuk v Christo Popov | W | 1-2 |