Game |
| Result | Moves |
Year | Event/Locale | Opening |
1. S Kovalenko vs N Kovalenko |
| ½-½ | 26 | 2000 | Kharkiv Caissa Open | D43 Queen's Gambit Declined Semi-Slav |
2. N Kovalenko vs Y Semerij |
| 0-1 | 57 | 2000 | Kharkiv Caissa Open | C44 King's Pawn Game |
3. G Dubivka vs N Kovalenko |
| 1-0 | 29 | 2000 | Kharkiv Caissa Open | A46 Queen's Pawn Game |
4. V Katuzian vs N Kovalenko |
| 1-0 | 56 | 2000 | Kharkiv Caissa Open | A15 English |
5. N Kovalenko vs S Stepanenko |
| 1-0 | 42 | 2000 | Kharkiv Caissa Open | E65 King's Indian, Fianchetto, Yugoslav, 7.O-O |
6. S Rybakov vs N Kovalenko |
 | 0-1 | 76 | 2000 | Kharkiv Caissa Open | E77 King's Indian |
7. N Kovalenko vs R Gevorkyan |
| 1-0 | 35 | 2000 | Kharkiv Caissa Open | E63 King's Indian, Fianchetto, Panno Variation |
8. N Kovalenko vs N Ustianovich |
| 0-1 | 80 | 2000 | Kharkiv Caissa Open | D02 Queen's Pawn Game |
9. S Sukharev vs N Kovalenko |
| 1-0 | 65 | 2000 | Kharkiv Caissa Open | D47 Queen's Gambit Declined Semi-Slav |
10. A Volokitin vs N Kovalenko |
| 1-0 | 26 | 2001 | UKR-ch U20 | B76 Sicilian, Dragon, Yugoslav Attack |
11. N Kovalenko vs N Firman |
| 0-1 | 27 | 2001 | UKR-ch U20 | E01 Catalan, Closed |
12. N Kovalenko vs A Romashko |
 | 0-1 | 46 | 2001 | Ch-Kaissa Club | B12 Caro-Kann Defense |
13. D Grin vs N Kovalenko |
| 1-0 | 34 | 2001 | Ch-Kaissa Club | B76 Sicilian, Dragon, Yugoslav Attack |
14. N Kovalenko vs A A Ivanov |
| 0-1 | 51 | 2001 | Ch-Kaissa Club | C41 Philidor Defense |
15. S Iljin vs N Kovalenko |
| ½-½ | 16 | 2001 | Ch-Kaissa Club | D04 Queen's Pawn Game |
16. N Kovalenko vs N Jadvizhena |
| ½-½ | 31 | 2001 | Ch-Kaissa Club | B56 Sicilian |
17. N Kovalenko vs I Kalinski |
| 0-1 | 29 | 2001 | Ch-Kaissa Club | B46 Sicilian, Taimanov Variation |
18. T Dornbusch vs N Kovalenko |
 | 0-1 | 34 | 2001 | Ch-Kaissa Club | D18 Queen's Gambit Declined Slav, Dutch |
19. N Kovalenko vs R Kreslavsky |
| ½-½ | 32 | 2001 | Ch-Kaissa Club | B76 Sicilian, Dragon, Yugoslav Attack |
20. D Kucherenko vs N Kovalenko |
| ½-½ | 15 | 2001 | Ch-Kaissa Club | B25 Sicilian, Closed |
21. N Kovalenko vs A Ermolaev |
| ½-½ | 24 | 2001 | Ch-Kaissa Club | D12 Queen's Gambit Declined Slav |
22. A Tsepotan vs N Kovalenko |
| ½-½ | 18 | 2001 | Ch-Kaissa Club | B22 Sicilian, Alapin |
23. N Kovalenko vs A Nosenko |
| 0-1 | 45 | 2002 | Kaissa Open | C16 French, Winawer |
24. M Leonov vs N Kovalenko |
| 0-1 | 44 | 2002 | Kaissa Open | C02 French, Advance |
25. N Kovalenko vs E Harchenko |
| 1-0 | 23 | 2002 | Kaissa Open | D10 Queen's Gambit Declined Slav |