| WTT Star Contender Doha | 2021/03/07 12:50 | Dang Qiu v Monteiro, Thiago | L | 3-1 |
| WTT Star Contender Doha | 2021/03/07 08:10 | Karakasevic, Aleksandar v Monteiro, Thiago | W | 1-3 |
| WTT Star Contender Doha | 2021/03/06 15:00 | Monteiro, Thiago v Anders Lind | W | 3-2 |
| WTT Contender - Doha | 2021/02/28 09:56 | Joao Geraldo v Monteiro, Thiago | L | 3-0 |
| Ligue des Champions | 2020/12/15 16:50 | Kristian Karlsson v Monteiro, Thiago | W | 2-3 |
| Ligue des Champions | 2020/12/13 09:20 | Felipe Olivares v Monteiro, Thiago | W | 1-3 |
| Ligue des Champions | 2020/12/12 09:20 | Monteiro, Thiago v Liam Pitchford | L | 2-3 |
| Challenge Plus Oman Open 2020, MS | 2020/03/13 14:20 | Aliaksandr Khanin v Monteiro, Thiago | L | 4-1 |
| ITTF European Team Championships, Singles | 2021/08/29 17:30 | Tal Israeli v Nandor Ecseki | W | 0-3 |
| ITTF European Team Championships, Singles | 2021/08/29 13:00 | Nandor Ecseki v Osiro, Pedro | W | 3-1 |
| ITTF European Team Championships, Singles | 2021/08/28 12:15 | Nandor Ecseki v Samuli Soine | W | 3-1 |
| ITTF European Team Championships, Singles | 2021/08/27 18:00 | Nandor Ecseki v Eskil Lindholm | L | 2-3 |
| ITTF European Team Championships, Singles | 2021/08/27 16:00 | Nandor Ecseki v Borgar Haug | L | 0-3 |
| WTT Contender Budapest | 2021/08/18 17:00 | Tomas Polansky v Nandor Ecseki | L | 3-1 |
| WTT Contender Budapest | 2021/08/17 15:40 | Nandor Ecseki v Alexander Chen | W | 3-1 |
| European Championships | 2021/06/24 15:50 | Persson, Jon v Nandor Ecseki | L | 4-0 |