| Challenger Ochsenhausen | 2018/02/12 17:40 | Evgueni Chtchetinine v Niagol Stoyanov | W | 3-0 |
| Challenger Ochsenhausen | 2021/09/13 15:20 | Evgueni Chtchetinine v Alexander Valuch | W | 3-2 |
| Challenger Ochsenhausen | 2021/09/13 12:30 | Evgueni Chtchetinine v Petr David | L | 2-3 |
| Challenger Ochsenhausen | 2021/09/13 09:10 | David Reitspies v Evgueni Chtchetinine | W | 0-3 |
| Challenger Ochsenhausen | 2021/09/13 07:10 | Evgueni Chtchetinine v Fedor Kuzmin | L | 1-3 |
| Challenger Ochsenhausen | 2021/08/24 10:20 | Elia Schmid v Evgueni Chtchetinine | W | 0-3 |
| Challenger Ochsenhausen | 2021/08/24 08:20 | Evgueni Chtchetinine v Liang Qiu | L | 0-3 |
| Challenger Ochsenhausen | 2021/08/23 20:00 | Josip Huzjak v Evgueni Chtchetinine | W | 1-3 |
| Challenger Ochsenhausen | 2021/08/23 17:20 | Daniel Rinderer v Evgueni Chtchetinine | W | 1-3 |
| Challenger Ochsenhausen | 2021/09/13 17:20 | David Reitspies v Niagol Stoyanov | L | 3-0 |
| Challenger Ochsenhausen | 2021/09/13 14:40 | Niagol Stoyanov v Fedor Kuzmin | L | 1-3 |
| 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 |