| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. N Stavrev vs I Papaioannou |
| ½-½ | 37 | 1992 | Balkaniad | B84 Sicilian, Scheveningen |
| 2. I Papaioannou vs H A Gretarsson |
| 1-0 | 41 | 1992 | Wch U16 | B39 Sicilian, Accelerated Fianchetto, Breyer Variation |
| 3. I Papaioannou vs K Kulaots |
| 0-1 | 35 | 1992 | Wch U16 | A31 English, Symmetrical, Benoni Formation |
| 4. I Papaioannou vs Svidler |
| 0-1 | 37 | 1992 | Wch U16 | D80 Grunfeld |
| 5. I Papaioannou vs R Gadjily |
| 1-0 | 36 | 1992 | European Junior Championship | E84 King's Indian, Samisch, Panno Main line |
| 6. I Papaioannou vs J Barkhagen |
| ½-½ | 23 | 1992 | European Junior Championship | D38 Queen's Gambit Declined, Ragozin Variation |
| 7. M Ahn vs I Papaioannou |
| ½-½ | 54 | 1992 | European Junior Championship | B40 Sicilian |
| 8. I Papaioannou vs V Borovikov |
| ½-½ | 28 | 1992 | European Junior Championship | D43 Queen's Gambit Declined Semi-Slav |
| 9. S D Sigfusson vs I Papaioannou |
| 0-1 | 60 | 1992 | European Junior Championship | E39 Nimzo-Indian, Classical, Pirc Variation |
| 10. T Nalbandian vs I Papaioannou |
| 1-0 | 70 | 1992 | European Junior Championship | A05 Reti Opening |
| 11. I Papaioannou vs M Oratovsky |
| 0-1 | 71 | 1992 | European Junior Championship | E95 King's Indian, Orthodox, 7...Nbd7, 8.Re1 |
| 12. N Eliet vs I Papaioannou |
| 0-1 | 44 | 1992 | European Junior Championship | B21 Sicilian, 2.f4 and 2.d4 |
| 13. I Papaioannou vs M Ceteras |
| 1-0 | 42 | 1992 | European Junior Championship | D11 Queen's Gambit Declined Slav |
| 14. N Bathie vs I Papaioannou |
| 0-1 | 68 | 1992 | European Junior Championship | B23 Sicilian, Closed |
| 15. I Papaioannou vs A Aleksandrov |
| 0-1 | 41 | 1992 | European Junior Championship | D38 Queen's Gambit Declined, Ragozin Variation |
| 16. T Hebesberger vs I Papaioannou |
| 0-1 | 35 | 1993 | European Junior Championship | A46 Queen's Pawn Game |
| 17. C Bauer vs I Papaioannou |
| ½-½ | 18 | 1993 | European Junior Championship | E54 Nimzo-Indian, 4.e3, Gligoric System |
| 18. I Papaioannou vs D Rogozenco |
| 1-0 | 61 | 1993 | European Junior Championship | A53 Old Indian |
| 19. I Papaioannou vs J Maiwald |
| ½-½ | 17 | 1993 | European Junior Championship | E86 King's Indian, Samisch, Orthodox, 7.Nge2 c6 |
| 20. P H Nielsen vs I Papaioannou |
| 0-1 | 42 | 1993 | European Junior Championship | B40 Sicilian |
| 21. I Papaioannou vs M Oratovsky |
| ½-½ | 64 | 1993 | European Junior Championship | B07 Pirc |
| 22. Onischuk vs I Papaioannou |
| 1-0 | 46 | 1993 | European Junior Championship | E39 Nimzo-Indian, Classical, Pirc Variation |
| 23. I Papaioannou vs G Izsak |
| 1-0 | 61 | 1993 | European Junior Championship | E07 Catalan, Closed |
| 24. V Georgiev vs I Papaioannou |
| 0-1 | 54 | 1993 | European Junior Championship | B80 Sicilian, Scheveningen |
| 25. I Papaioannou vs A Aleksandrov |
| 0-1 | 39 | 1993 | European Junior Championship | A13 English |
Kibitzing
