| European Championships | 2021/06/24 17:30 | Katsman, Lev v Panagiotis Gionis | W | 1-4 |
| Ligue des Champions | 2021/11/07 11:25 | Panagiotis Gionis v Ioannis Sgouropoulos | L | 1-3 |
| Ligue des Champions | 2021/11/06 12:40 | Marcos Freitas v Panagiotis Gionis | L | 3-2 |
| Ligue des Champions | 2021/11/05 18:45 | Jiri Vrablik v Panagiotis Gionis | W | 2-3 |
| Ligue des Champions | 2021/11/05 17:25 | Frantisek Onderka v Panagiotis Gionis | W | 0-3 |
| Europe Top 16 Cup | 2021/09/18 09:30 | Simon Gauzy v Panagiotis Gionis | L | 4-1 |
| TT Star Series | 2021/09/12 14:10 | Panagiotis Gionis v Mateusz Czernik | W | 3-0 |
| Olympics 2020 - Men | 2021/07/27 01:00 | Jeoung, Youngsik v Panagiotis Gionis | L | 4-3 |
| Olympics 2020 - Men | 2021/07/25 05:45 | Ahmed Saleh v Panagiotis Gionis | W | 1-4 |
| Ligue des Champions | 2021/11/07 11:00 | Chih Yuan Chuang v Katsman, Lev | W | 2-3 |
| Ligue des Champions | 2021/11/06 18:30 | Katsman, Lev v Jiri Vrablik | W | 3-1 |
| Ligue des Champions | 2021/11/06 17:00 | Katsman, Lev v Jakub Zelinka | W | 3-1 |
| Ligue des Champions | 2021/11/05 12:30 | Katsman, Lev v Yun-Ju Lin | W | 3-2 |
| Ligue des Champions | 2021/11/05 11:35 | Katsman, Lev v Hugo Calderano | L | 1-3 |
| WTT Contender Tunis | 2021/10/24 19:15 | Katsman, Lev v Hunor Szocs | L | 2-3 |
| European Team Championships | 2021/10/03 14:20 | Patrick Franziska v Katsman, Lev | L | 3-2 |
| European Team Championships | 2021/10/02 10:00 | Katsman, Lev v Truls Moregard | W | 3-2 |