| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. I Nikolaidis vs I Papaioannou |
| ½-½ | 13 |
1998 |
48th Greek Championships | B40 Sicilian |
| 2. Z Stanojoski vs I Papaioannou |
| 1-0 | 35 |
2007 |
European Team Chess Championships | B42 Sicilian, Kan |
| 3. A Volokitin vs I Papaioannou |
| 0-1 | 40 |
2008 |
European Individual Championship | B96 Sicilian, Najdorf |
| 4. E Berg vs I Papaioannou |
| ½-½ | 15 |
2008 |
European Individual Championship | B90 Sicilian, Najdorf |
| 5. Nisipeanu vs I Papaioannou |
| 1-0 | 26 |
2008 |
2008 Olympiad | B87 Sicilian, Fischer-Sozin with ...a6 and ...b5 |
| 6. T L Petrosian vs I Papaioannou |
| 0-1 | 36 |
2008 |
European Individual Championship | B90 Sicilian, Najdorf |
| 7. Movsesian vs I Papaioannou |
| 1-0 | 48 |
2008 |
2008 Olympiad | B51 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 8. A Galkin vs I Papaioannou |
| ½-½ | 14 |
2008 |
European Individual Championship | B32 Sicilian |
| 9. G Meier vs I Papaioannou |
| ½-½ | 68 |
2008 |
2008 Olympiad | B51 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 10. V Laznicka vs I Papaioannou |
| 1-0 | 39 |
2009 |
World Cup | B96 Sicilian, Najdorf |
| 11. J C Ibarra Jerez vs I Papaioannou |
| ½-½ | 52 |
2009 |
10th European Individual Championship | B80 Sicilian, Scheveningen |
| 12. Z Almasi vs I Papaioannou |
| ½-½ | 27 |
2009 |
17th European Team Championship | B92 Sicilian, Najdorf, Opocensky Variation |
| 13. Shirov vs I Papaioannou |
 | 1-0 | 45 |
2009 |
17th European Team Championship | B96 Sicilian, Najdorf |
| 14. E Inarkiev vs I Papaioannou |
| 1-0 | 45 |
2009 |
10th European Individual Championship | B90 Sicilian, Najdorf |
| 15. A Kovacevic vs I Papaioannou |
| ½-½ | 10 |
2009 |
10th European Individual Championship | B90 Sicilian, Najdorf |
