| TT Elite Series | 06/07 00:45 | - | Krzesimir Kleszcz v Jakub Mastowski | W | 0-3 | |
| TT Elite Series | 06/06 23:45 | - | Damian Swierczek v Jakub Mastowski | L | 3-1 | |
| TT Elite Series | 06/06 21:15 | - | Szymon Twardowski v Jakub Mastowski | W | 0-3 | |
| TT Elite Series | 06/06 20:15 | - | Mateusz Selerski v Jakub Mastowski | W | 2-3 | |
| TT Elite Series | 06/06 18:15 | - | Mikolaj Szalinsky v Jakub Mastowski | W | 1-3 | |
| TT Elite Series | 03/24 01:30 | - | Jakub Mastowski v Piotr Chodorski | L | 0-1 | |
| TT Elite Series | 03/24 00:00 | - | Nestor Wasylkowski v Jakub Mastowski | L | 3-0 | |
| TT Elite Series | 03/23 23:00 | - | Jakub Mastowski v Nuchchart Sitisak | L | 0-3 | |
| TT Elite Series | 03/13 12:30 | - | Jakub Stecyszyn v Jakub Mastowski | L | 3-0 | |
| TT Elite Series | 03/13 11:30 | - | Jaroslaw Tomicki v Jakub Mastowski | L | 3-0 | |
| TT Elite Series | 03/13 10:30 | - | Jakub Mastowski v Pawel Piotrowski | L | 1-3 | |
| TT Elite Series | 03/13 08:30 | - | Jakub Mastowski v Jaroslaw Klamut | W | 3-0 |