| WTT Feeder Biella Quals | 12/12 12:00 | 6 | Ioannis Sgouropoulos v Stamatouros, Georgios | L | 3-1 | |
| Challenger Ochsenhausen | 12/08 17:40 | - | Stamatouros, Georgios v Damian Provost | L | 0-3 | |
| WTT Feeder Stockholm | 10/04 16:55 | 6 | Stamatouros, Georgios v Lilian Bardet | L | 0-3 | |
| WTT Feeder Stockholm Quals | 10/03 15:50 | - | Stamatouros, Georgios v Balazs Lei | L | 0-3 | |
| WTT Feeder Stockholm Quals | 10/03 09:25 | 15 | Stamatouros, Georgios v Jabdiel Torres | W | 3-1 | |
| Challenger Ochsenhausen | 09/28 17:30 | - | Stamatouros, Georgios v Piotr Chodorski | L | 0-3 | |
| European Team Championships | 09/12 14:40 | - | Tamas Lakatos v Stamatouros, Georgios | L | 3-1 | |
| European Team Championships | 09/10 11:10 | - | Marcos Freitas v Stamatouros, Georgios | L | 3-0 | |
| Challenger Ochsenhausen | 09/03 14:40 | - | Stamatouros, Georgios v Asuka Machi | L | 1-3 | |
| European Team Championships | 05/05 14:55 | - | Alberto Lillo v Stamatouros, Georgios | W | 2-3 | |
| WTT Contender Novo Gorica | 10/31 14:00 | - | Lubomir Pistej v Stamatouros, Georgios | L | 3-2 | |
| European Championships | 08/16 14:30 | - | Stamatouros, Georgios v Zsolt Peto | L | 0-3 | |
| European Championships | 08/16 11:10 | - | Adam Klajber v Stamatouros, Georgios | W | 1-3 | |
| European Championships | 08/14 13:55 | - | Rares Sipos v Stamatouros, Georgios | L | 3-2 | |
| WTT Contender Zagreb Quals | 06/13 15:50 | - | Ibrahima Diaw v Stamatouros, Georgios | L | 3-0 | |
| WTT Contender Zagreb Quals | 06/13 08:40 | - | Kwan To Yiu v Stamatouros, Georgios | W | 1-3 | |
| WTT Contender - Doha | 03/19 12:10 | - | Stamatouros, Georgios v Can Akkuzu | L | 0-3 | |
| WTT Contender - Doha | 03/18 16:20 | - | Stamatouros, Georgios v Nicolas Burgos | W | 3-1 | |
| WTT Feeder Doha | 03/14 08:15 | - | Darius Movileanu v Stamatouros, Georgios | L | 3-0 | |
| WTT Feeder Doha | 03/13 13:00 | - | Tugay Yilmaz v Stamatouros, Georgios | W | 1-3 | |
| European Championships | 06/22 17:20 | - | Alex Naumi v Stamatouros, Georgios | L | 3-2 | |
| European Championships | 06/22 08:25 | - | Adam Szudi v Stamatouros, Georgios | L | 3-2 | |
| Polish Open | 03/12 14:00 | - | Denislav Kodjabashev v Stamatouros, Georgios | - | away | |
| Polish Open | 03/11 17:00 | - | Ufnal, Mateusz Edward v Stamatouros, Georgios | W | 0-3 | |
| Polish Open | 03/11 14:20 | - | Maciej Kolodziejczyk v Stamatouros, Georgios | W | 1-3 | |
| Challenge Plus Portugal Open 2020, MS, Quali | 02/12 14:15 | - | Toranzos, Alejandro v Stamatouros, Georgios | W | 3-4 | |
| Tennis de table - Rencontres | 12/10 19:20 | - | Kristian Karlsson v Stamatouros, Georgios | L | 3-0 | |
| Qatar Open 2019, MS | 12/06 14:21 | - | An Yan v Stamatouros, Georgios | L | 3-0 | |
| Qatar Open 2019, MS | 12/06 13:19 | - | Liventsov, Alexey v Stamatouros, Georgios | L | 3-0 | |
| Qatar Open 2019, MS | 11/29 20:34 | - | Stamatouros, Georgios v Zhang Fuzhou | W | 3-1 |