| WTT Contender Mendoza | 05/30 22:00 | 5 | Niagol Stoyanov v Lubomir Pistej | L | 1-3 | |
| WTT Contender Mendoza Quals | 05/29 21:45 | - | Niagol Stoyanov v Luka Mladenovic | W | 3-0 | |
| WTT Contender Mendoza Quals | 05/28 22:10 | - | Niagol Stoyanov v Andrea Puppo | W | 3-2 | |
| WTT Contender Rio Quals | 05/21 21:15 | - | Niagol Stoyanov v Manush Utpalbhai Shah | L | 0-3 | |
| European Olympic Qualification | 05/18 14:20 | - | Alvaro Robles v Niagol Stoyanov | L | 4-2 | |
| European Olympic Qualification | 05/18 11:00 | - | Niagol Stoyanov v Ibrahim Gunduz | W | 4-1 | |
| European Olympic Qualification | 05/17 08:20 | - | Niagol Stoyanov v Panagiotis Gionis | L | 0-4 | |
| European Olympic Qualification | 05/16 13:20 | - | Niagol Stoyanov v Daniels Kogans | W | 4-1 | |
| European Olympic Qualification | 05/15 17:30 | - | Paul Drinkhall v Niagol Stoyanov | L | 4-2 | |
| European Olympic Qualification | 05/15 10:00 | - | Niagol Stoyanov v Elias Hardmeier | W | 4-0 | |
| WTT Saudi Smash Quals | 05/02 11:00 | 14 | Jakub Dyjas v Niagol Stoyanov | L | 3-0 | |
| WTT Feeder Havirov | 04/15 11:25 | 6 | Seongil Jang v Niagol Stoyanov | L | 3-1 |