| WTT Feeder Biella | 12/17 10:30 | 2 | Chih Yuan Chuang v Panagiotis Gionis | W | 0-3 | |
| WTT Feeder Biella | 12/16 16:50 | 3 | Noshad Alamiyan v Panagiotis Gionis | W | 1-3 | |
| WTT Feeder Biella | 12/15 19:10 | 4 | Panagiotis Gionis v Sharath Kamal Achanta | W | 3-1 | |
| WTT Feeder Biella | 12/15 14:00 | 5 | Niagol Stoyanov v Panagiotis Gionis | W | 2-3 | |
| WTT Feeder Biella | 12/14 19:45 | 6 | Angel Naranjo v Panagiotis Gionis | W | 0-3 | |
| Challenger Ochsenhausen | 12/05 16:20 | - | Slawomir Dosz v Panagiotis Gionis | W | 1-3 | |
| Európa Bajnokok Ligája | 12/01 17:50 | - | David Reitspies v Panagiotis Gionis | W | 1-3 | |
| Bajnokok Ligája | 11/22 18:35 | - | Panagiotis Gionis v Dimitrij Ovtcharov | L | 2-3 | |
| Bajnokok Ligája | 11/22 16:45 | - | Panagiotis Gionis v Truls Moregardh | L | 2-3 | |
| Európa Bajnokok Ligája | 10/19 15:40 | - | Panagiotis Gionis v Pavel Sirucek | W | 3-0 | |
| WTT Feeder Stockholm | 10/04 10:45 | 6 | Truls Moregard v Panagiotis Gionis | L | 3-2 | |
| Challenger Ochsenhausen | 09/30 15:00 | - | Panagiotis Gionis v Truls Moregard | L | 1-3 | |
| Challenger Ochsenhausen | 09/30 14:06 | - | Panagiotis Gionis v Vladislav Ursu | L | 1-3 | |
| Challenger Ochsenhausen | 09/28 16:40 | - | Piotr Cyrnek v Panagiotis Gionis | W | 0-3 | |
| Challenger Ochsenhausen | 09/26 17:00 | - | Panagiotis Gionis v Kaii Konishi | W | 3-2 | |
| Challenger Ochsenhausen | 09/24 16:01 | - | Zeng Yi Wang v Panagiotis Gionis | W | 0-3 | |
| Európai csapatbajnokság | 09/12 14:00 | - | Adam Szudi v Panagiotis Gionis | W | 0-3 | |
| Európai csapatbajnokság | 09/10 12:50 | - | Marcos Freitas v Panagiotis Gionis | L | 3-0 | |
| Európai csapatbajnokság | 09/10 11:40 | - | Tiago Apolonia v Panagiotis Gionis | L | 3-1 | |
| Francia Pro A liga | 09/05 16:04 | - | Panagiotis Gionis v Navid Shams | W | 3-1 | |
| Challenger Ochsenhausen | 09/05 13:58 | - | Panagiotis Gionis v Patryk Bielecki | W | 3-1 | |
| ITTF World Championships | 05/22 12:00 | 6 | Zhendong Fan v Panagiotis Gionis | L | 4-1 | |
| ITTF World Championships | 05/20 08:00 | 57 | Amir Hossein Hodaei v Panagiotis Gionis | W | 2-4 | |
| WTT Singapore Smash Quals | 03/09 04:20 | - | Kay Stumper v Panagiotis Gionis | L | 3-2 | |
| WTT Singapore Smash Quals | 03/07 11:15 | 7 | Panagiotis Gionis v Yaroslav Zhmudenko | W | 3-2 | |
| Európa Kupa | 02/22 17:40 | - | Panagiotis Gionis v Kaii Konishi | L | 1-3 | |
| Európa Kupa | 02/16 16:10 | - | Jonathan Groth v Panagiotis Gionis | L | 3-0 | |
| Európa Kupa | 02/10 17:00 | - | Panagiotis Gionis v Vladislav Ursu | W | 3-1 | |
| Európa Kupa | 02/10 15:30 | - | Panagiotis Gionis v Artur Grela | W | 3-1 | |
| Challenger Ochsenhausen | 02/07 16:40 | - | Panagiotis Gionis v Kaii Konishi | W | 3-2 |