| Challenger - Ochsenhausen | 2018/02/12 10:50 | Fedor Kuzmin v Niagol Stoyanov | L | 3-2 |
| Challenger - Ochsenhausen | 2021/09/13 10:30 | Niagol Stoyanov v Dauud Cheaib | L | 2-3 |
| Challenger - Ochsenhausen | 2021/09/13 08:30 | Niagol Stoyanov v Florian Bluhm | L | 0-3 |
| Euro Champs Team Quals | 2021/08/28 14:35 | Niagol Stoyanov v Cedric Tschanz | W | 3-1 |
| Euro Champs Team Quals | 2021/08/27 18:25 | Niagol Stoyanov v Stanislav Strogov | W | 3-1 |
| WTT Contender Budapest | 2021/08/19 13:50 | Dang Qiu v Niagol Stoyanov | L | 3-0 |
| WTT Contender Budapest | 2021/08/18 13:20 | Niagol Stoyanov v Sathiyan Gnanasekaran | W | 3-1 |
| WTT Contender Budapest | 2021/08/17 16:20 | Lubomir Pistej v Niagol Stoyanov | W | 1-3 |
| Europese kampioenschappen | 2021/06/25 16:40 | Ovidiu Ionescu v Niagol Stoyanov | L | 4-2 |
| Challenger - Ochsenhausen | 2021/09/13 09:50 | Alexander Valuch v Fedor Kuzmin | W | 1-3 |
| Challenger - Ochsenhausen | 2021/09/13 07:10 | Evgueni Chtchetinine v Fedor Kuzmin | W | 1-3 |
| Challenger - Ochsenhausen | 2021/08/17 14:00 | Florian Bluhm v Fedor Kuzmin | W | 1-3 |
| Challenger - Ochsenhausen | 2021/08/17 13:15 | Amirreza Abbasi v Fedor Kuzmin | L | 3-2 |
| Challenger - Ochsenhausen | 2021/08/17 11:40 | Fedor Kuzmin v Amirreza Abbasi | W | 3-1 |
| Challenger - Ochsenhausen | 2021/08/17 09:00 | Fedor Kuzmin v Dillon Chambers | L | 0-3 |
| Challenger - Ochsenhausen | 2021/08/16 20:00 | Fedor Kuzmin v Josip Huzjak | W | 3-1 |
| Challenger - Ochsenhausen | 2021/08/16 15:20 | Fedor Kuzmin v Dauud Cheaib | L | 1-3 |