| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. N Kalesis vs Blatny |
| 0-1 | 38 |
1991 |
? | D35 Queen's Gambit Declined |
| 2. Wojtkiewicz vs N Kalesis |
| 1-0 | 22 |
1993 |
Komotini GP | A15 English |
| 3. N Kalesis vs P Nikolic |
| 0-1 | 31 |
1993 |
Biel izt | D20 Queen's Gambit Accepted |
| 4. N Kalesis vs F Hellers |
| 0-1 | 66 |
1993 |
Biel izt | B90 Sicilian, Najdorf |
| 5. P Zarnicki vs N Kalesis |
| ½-½ | 35 |
1993 |
Biel izt | A07 King's Indian Attack |
| 6. A Kakageldyev vs N Kalesis |
| ½-½ | 18 |
1993 |
Biel izt | E32 Nimzo-Indian, Classical |
| 7. A Frolov vs N Kalesis |
| 1-0 | 40 |
1993 |
Biel izt | B48 Sicilian, Taimanov Variation |
| 8. N Kalesis vs Leko |
| ½-½ | 28 |
1993 |
Budapest FS10 | B32 Sicilian |
| 9. C Hansen vs N Kalesis |
| ½-½ | 52 |
1993 |
Biel izt | A46 Queen's Pawn Game |
| 10. Lesiege vs N Kalesis |
| ½-½ | 54 |
1993 |
Biel izt | E41 Nimzo-Indian |
| 11. N Kalesis vs G Bagaturov |
| ½-½ | 17 |
1993 |
Biel izt | B56 Sicilian |
| 12. N Kalesis vs K Moutousis |
| 0-1 | 27 |
1993 |
Biel izt | C18 French, Winawer |
| 13. Xu Jun vs N Kalesis |
| 1-0 | 28 |
1993 |
Biel izt | E32 Nimzo-Indian, Classical |
| 14. N Kalesis vs D Gluckman |
| ½-½ | 59 |
1993 |
Biel izt | B04 Alekhine's Defense, Modern |
| 15. Topalov vs N Kalesis |
| 1-0 | 50 |
1993 |
Biel izt | B48 Sicilian, Taimanov Variation |
| 16. Kotronias vs N Kalesis |
| 1-0 | 31 |
1994 |
Karditsa (Greece) | C42 Petrov Defense |
| 17. N Kalesis vs Silman |
| ½-½ | 55 |
1994 |
05 | B32 Sicilian |
| 18. N Kalesis vs Kotronias |
| 0-1 | 44 |
1995 |
Ch Greece | B63 Sicilian, Richter-Rauzer Attack |
| 19. Kotronias vs N Kalesis |
| 0-1 | 46 |
1995 |
It (open) | E11 Bogo-Indian Defense |
| 20. T Gelashvili vs N Kalesis |
| 1-0 | 47 |
1996 |
Ermoupoli | B21 Sicilian, 2.f4 and 2.d4 |
| 21. T Gelashvili vs N Kalesis |
| ½-½ | 49 |
1996 |
Mitilini op | B40 Sicilian |
| 22. N Kalesis vs Tringov |
| 1-0 | 41 |
1997 |
Ano Liosia op | E91 King's Indian |
| 23. T Gelashvili vs N Kalesis |
| 1-0 | 54 |
1997 |
Ikaros 1st | B54 Sicilian |
| 24. N Kalesis vs E Grivas |
| ½-½ | 48 |
2001 |
3rd Open | A81 Dutch |
| 25. Barsov vs N Kalesis |
| 1-0 | 52 |
2001 |
3rd Open | D38 Queen's Gambit Declined, Ragozin Variation |