| Olympic Qualification | 2021/04/22 15:00 | Niagol Stoyanov v Luka Mladenovic | W | 4-3 |
| Olympic Qualification | 2021/04/21 19:00 | Lubomir Pistej v Niagol Stoyanov | L | 4-0 |
| Olympic Qualification | 2021/04/21 14:00 | Niagol Stoyanov v Samuel Kulczycki | W | 4-1 |
| Olympic Qualification | 2021/03/16 15:20 | Florent Lambiet v Niagol Stoyanov | L | 4-2 |
| Olympic Qualification | 2021/03/15 12:00 | Lei Kou v Niagol Stoyanov | L | 4-1 |
| Olympic Qualification | 2021/03/14 13:01 | Niagol Stoyanov v Sharath Kamal Achanta | W | 4-2 |
| WTT Star Contender Doha | 2021/03/06 16:54 | Niagol Stoyanov v Nima Alamian | L | 1-3 |
| Challenger - Ochsenhausen | 2020/09/25 09:50 | Daniel Gorak v Niagol Stoyanov | W | 1-3 |
| Challenger - Ochsenhausen | 2021/05/18 09:00 | Marius Henninger v Maciej Kubik | W | 0-3 |
| Challenger - Ochsenhausen | 2021/05/18 07:00 | Dauud Cheaib v Maciej Kubik | L | 3-1 |
| Challenger - Ochsenhausen | 2021/05/17 18:40 | Carlos Muhlbach v Maciej Kubik | L | 3-0 |
| Challenger - Ochsenhausen | 2021/05/17 16:40 | Maciej Kubik v Evgueni Chtchetinine | W | 3-2 |
| Challenger - Ochsenhausen | 2021/05/17 14:00 | Maciej Kubik v Jonathan Thimon | W | 3-0 |
| Challenger - Ochsenhausen | 2021/05/17 11:10 | Maciej Kubik v Ali Gozubuyuk | W | 3-1 |
| Challenger - Ochsenhausen | 2021/05/17 08:30 | Peter Hribar v Maciej Kubik | L | 3-1 |
| Oman Open - U21 - Kvinder | 2020/03/12 19:05 | Maciej Kubik v Artur Grela | L | 2-3 |