Away History
| Qatar Open Women | 2018/09/20 17:50 | Lei Kou v Niagol Stoyanov | L | 4-0 |
| Qatar Open XD | 2018/09/19 13:05 | Niagol Stoyanov v Marek Badowski | L | 3-4 |
| Qatar Open XD | 2018/08/15 07:10 | Niagol Stoyanov v Yuki Matsuyama | W | 4-1 |
| Qatar Open XD | 2018/05/29 02:50 | Niagol Stoyanov v Bo Fang | L | 2-4 |
| Qatar Open XD | 2018/05/23 02:40 | Niagol Stoyanov v Jike Zhang | L | 2-4 |
| Qatar Open XD | 2018/03/15 11:50 | Sangsu Lee v Niagol Stoyanov | L | 4-2 |
| Challenger Ochsenhausen | 2018/02/13 12:00 | Miroslav Horejsi v Niagol Stoyanov | W | 1-3 |
| Challenger Ochsenhausen | 2018/02/13 10:40 | Niagol Stoyanov v Jiri Vrablik | L | 0-3 |