| Challenger Ochsenhausen | 03/09 17:33 | - | Artur Grela v Panagiotis Gionis | W | 1-3 | |
| Hungarian Open | 02/21 16:10 | 4 | Panagiotis Gionis v Benedikt Duda | L | 1-4 | |
| Hungarian Open | 02/20 16:50 | 5 | Bence Majoros v Panagiotis Gionis | W | 2-4 | |
| Hungarian Open | 02/19 16:40 | - | Stephane Ouaiche v Panagiotis Gionis | W | 1-4 | |
| Hungarian Open | 02/19 09:40 | - | Andrea Landrieu v Panagiotis Gionis | W | 0-4 | |
| Európa Bajnokok Ligája | 02/14 15:40 | 3 | Andrej Gacina v Panagiotis Gionis | L | 3-0 | |
| Európa Bajnokok Ligája | 02/14 14:30 | 3 | Alexander Shibaev v Panagiotis Gionis | W | 1-3 | |
| Challenger Ochsenhausen | 02/09 15:02 | - | Panagiotis Gionis v Robert Floras | W | 3-0 | |
| Challenger Ochsenhausen | 02/06 17:37 | - | Patryk Chojnowski v Panagiotis Gionis | W | 2-3 | |
| Challenger Ochsenhausen | 02/03 19:15 | - | Panagiotis Gionis v Qiyao Han | L | 0-1 | |
| Challenger Ochsenhausen | 02/03 17:05 | - | Panagiotis Gionis v Daniel Gorak | W | 3-1 | |
| German Open | 01/29 17:50 | - | Panagiotis Gionis v Jonghoon Lim | L | 1-4 | |
| German Open | 01/29 12:40 | - | Panagiotis Gionis v Bence Majoros | W | 4-1 | |
| German Open | 01/28 14:55 | - | Panagiotis Gionis v Fanbo Meng | W | 4-2 | |
| World Team Olympic Quals | 01/23 16:30 | - | Tomislav Pucar v Panagiotis Gionis | W | 0-3 | |
| Bajnokok Ligája | 01/17 19:30 | 3 | Panagiotis Gionis v Jonathan Groth | W | 3-2 | |
| Bajnokok Ligája | 01/17 17:35 | 3 | Panagiotis Gionis v Alexander Shibaev | L | 2-3 | |
| Challenger Ochsenhausen | 01/09 18:25 | - | Gionis Panagiotis v Marek Pradzinski | W | 3-0 | |
| Európa Bajnokok Ligája | 12/10 20:25 | - | Kun Shang v Panagiotis Gionis | W | 1-3 | |
| Európa Bajnokok Ligája | 12/10 19:00 | - | Tomas Polansky v Panagiotis Gionis | W | 1-3 | |
| Európa Bajnokok Ligája | 12/06 17:40 | - | Panagiotis Gionis v Andrey Bukin | W | 3-0 | |
| Challenger Ochsenhausen | 12/05 17:10 | - | Gionis Panagiotis v Jan Zandecki | W | 3-0 | |
| Austrian Open | 11/13 12:30 | - | Zihao Zhao v Panagiotis Gionis | L | 4-0 | |
| Austrian Open | 11/12 18:30 | - | Deni Kozul v Panagiotis Gionis | W | 1-4 | |
| Európa Bajnokok Ligája | 10/30 17:00 | - | Panagiotis Gionis v Vasili Lakeev | W | 3-2 | |
| Európa Bajnokok Ligája | 10/25 18:40 | - | Vasily Lakeev v Panagiotis Gionis | W | 2-3 | |
| Challenger Ochsenhausen | 10/22 18:25 | - | Antonin Gavlas v Gionis Panagiotis | W | 0-2 | |
| Challenger Ochsenhausen | 10/22 16:20 | - | Robert Floras v Gionis Panagiotis | W | 0-3 | |
| Polish Open | 10/19 15:50 | - | Panagiotis Gionis v Chan-Hyeok Park | L | 2-4 | |
| Polish Open | 10/19 11:30 | - | Panagiotis Gionis v Shuainan Chen | W | 4-0 |