| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. N Kalesis vs Blatny |
| 0-1 | 38 |
1991 |
? | D35 Queen's Gambit Declined |
| 2. N Kalesis vs Leko |
| ½-½ | 28 |
1993 |
Budapest FS10 | B36 Sicilian, Accelerated Fianchetto |
| 3. Xu Jun vs N Kalesis |
| 1-0 | 28 |
1993 |
Biel izt | E32 Nimzo-Indian, Classical |
| 4. Wojtkiewicz vs N Kalesis |
| 1-0 | 22 |
1993 |
Komotini GP | A15 English |
| 5. Kotronias vs N Kalesis |
| 1-0 | 31 |
1994 |
Karditsa (Greece) | C42 Petrov Defense |
| 6. N Kalesis vs Silman |
| ½-½ | 55 |
1994 |
05 | B32 Sicilian |
| 7. N Kalesis vs Kotronias |
| 0-1 | 44 |
1995 |
Ch Greece | B63 Sicilian, Richter-Rauzer Attack |
| 8. Kotronias vs N Kalesis |
| 0-1 | 46 |
1995 |
It (open) | E11 Bogo-Indian Defense |
| 9. T Gelashvili vs N Kalesis |
| ½-½ | 49 |
1996 |
Mitilini op | B40 Sicilian |
| 10. T Gelashvili vs N Kalesis |
| 1-0 | 47 |
1996 |
Ermoupoli | B21 Sicilian, 2.f4 and 2.d4 |
| 11. N Kalesis vs Tringov |
| 1-0 | 41 |
1997 |
Ano Liosia op | E91 King's Indian |
| 12. T Gelashvili vs N Kalesis |
| 1-0 | 54 |
1997 |
Ikaros 1st | B54 Sicilian |
| 13. I Fambas vs N Kalesis |
| 1-0 | 52 |
2001 |
9th Open | A46 Queen's Pawn Game |
| 14. Kotronias vs N Kalesis |
| 1-0 | 45 |
2001 |
3rd Open | B42 Sicilian, Kan |
| 15. H Polizou vs N Kalesis |
| 0-1 | 43 |
2001 |
3rd Open | A46 Queen's Pawn Game |
| 16. N Kalesis vs Marjanovic |
| 0-1 | 56 |
2001 |
3rd Open | D32 Queen's Gambit Declined, Tarrasch |
| 17. N Kalesis vs D Svetushkin |
| 0-1 | 24 |
2001 |
9th Open | D13 Queen's Gambit Declined Slav, Exchange Variation |
| 18. N Kalesis vs E Grivas |
| ½-½ | 48 |
2001 |
3rd Open | A81 Dutch |
| 19. N Kalesis vs A Mastrovasilis |
| 1-0 | 53 |
2001 |
3rd Open | D31 Queen's Gambit Declined |
| 20. Barsov vs N Kalesis |
| 1-0 | 52 |
2001 |
3rd Open | D38 Queen's Gambit Declined, Ragozin Variation |
| 21. N Kalesis vs E Xaxiris |
| ½-½ | 34 |
2001 |
3rd Open | E32 Nimzo-Indian, Classical |
| 22. Velimirovic vs N Kalesis |
| ½-½ | 21 |
2001 |
3rd Open | B41 Sicilian, Kan |
| 23. N Kalesis vs G Nikolaou |
| 1-0 | 48 |
2001 |
3rd Open | E92 King's Indian |
| 24. T Sideris vs N Kalesis |
| 0-1 | 43 |
2001 |
9th Open | B84 Sicilian, Scheveningen |
| 25. J Asik vs N Kalesis |
| ½-½ | 48 |
2001 |
3rd Open | B53 Sicilian |