| World Championship | 2019/04/23 13:00 | Niagol Stoyanov v Marcos Madrid | L | 2-4 |
| Qatar Open - Mixdouble | 2019/01/15 16:45 | Niagol Stoyanov v Aleksandar Karakasevic | W | 4-0 |
| Challenger - Ochsenhausen | 2018/12/04 15:00 | Harmeet Desai v Niagol Stoyanov | W | 2-3 |
| Challenger - Ochsenhausen | 2018/12/04 14:15 | Jakub Kosowski v Niagol Stoyanov | W | 0-3 |
| Challenger - Ochsenhausen | 2018/12/04 11:20 | Josip Huzjak v Niagol Stoyanov | W | 0-3 |
| Challenger - Ochsenhausen | 2018/12/04 09:20 | Niagol Stoyanov v Robert Floras | W | 3-1 |
| Challenger - Ochsenhausen | 2018/12/03 21:00 | Mateusz Golebiowski v Niagol Stoyanov | L | 3-0 |
| Challenger - Ochsenhausen | 2018/12/03 18:20 | Jakub Kosowski v Niagol Stoyanov | W | 2-3 |
| Russian Major League A | 2019/05/18 10:00 | Denis Grishenin v Aleksandr Smirnov | W | 1-3 |
| Russian Major League A | 2019/05/18 09:54 | Kirill Puzankov v Aleksandr Smirnov | L | 3-0 |
| Russian Major League A | 2019/05/18 07:13 | Ruslan Shvayko v Aleksandr Smirnov | W | 2-3 |
| Russian Major League A | 2019/05/17 10:20 | Denis Bochkov v Aleksandr Smirnov | L | 3-2 |
| Russian Major League A | 2019/05/17 09:40 | Aleksei Ulanov v Aleksandr Smirnov | L | 3-2 |
| World Championship | 2019/04/21 10:15 | Ebrahim Gubran v Aleksandr Smirnov | W | 1-4 |
| Qatar Open - Mixdouble | 2018/12/01 15:28 | Aleksandr Smirnov v Alexey Silantev | W | 3-2 |
| Qatar Open - Mixdouble | 2018/12/01 09:29 | Aleksandr Smirnov v Denis Grishenin | L | 0-3 |