| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. A Kamenets vs Efimenko |
| 0-1 | 36 |
2000 |
Ukrainian Team ch | E75 King's Indian, Averbakh, Main line |
| 2. G Nesterov vs Efimenko |
| 0-1 | 43 |
2000 |
Ukrainian Team ch | E61 King's Indian |
| 3. F Berkes vs Efimenko |
| 0-1 | 36 |
2000 |
t-EuCh U18 | A15 English |
| 4. Efimenko vs T Kononenko |
| 0-1 | 35 |
2000 |
Ukrainian Team ch | C03 French, Tarrasch |
| 5. Sedlak vs Efimenko |
| 0-1 | 49 |
2000 |
t-EuCh U18 | B32 Sicilian |
| 6. Efimenko vs G Arzumanian |
| 0-1 | 40 |
2000 |
Ukrainian Team ch | B32 Sicilian |
| 7. Efimenko vs Bu Xiangzhi |
| 0-1 | 36 |
2000 |
KasparovChess Cadet GP net | B62 Sicilian, Richter-Rauzer |
| 8. I Dubinka vs Efimenko |
| 0-1 | 40 |
2000 |
Ukrainian Team ch | E83 King's Indian, Samisch |
| 9. B Chatalbashev vs Efimenko |
| 0-1 | 72 |
2001 |
2nd IECC | D02 Queen's Pawn Game |
| 10. V Malakhatko vs Efimenko |
| 0-1 | 38 |
2001 |
ch-UKR | E92 King's Indian |
| 11. Spiridonov vs Efimenko |
| 0-1 | 31 |
2001 |
UKR-ch U16 | B22 Sicilian, Alapin |
| 12. H Sadeghi vs Efimenko |
| 0-1 | 39 |
2001 |
MTO | A02 Bird's Opening |
| 13. J C Ibarra Jerez vs Efimenko |
| 0-1 | 29 |
2001 |
WYB16 | B31 Sicilian, Rossolimo Variation |
| 14. Efimenko vs Acs |
| 0-1 | 45 |
2001 |
2nd IECC | B92 Sicilian, Najdorf, Opocensky Variation |
| 15. M Ginzburg vs Efimenko |
| 0-1 | 35 |
2001 |
Stork YM | C05 French, Tarrasch |
| 16. L Cernousek vs Efimenko |
| 0-1 | 42 |
2001 |
TCh-Europe Boys U18 | B92 Sicilian, Najdorf, Opocensky Variation |
| 17. M D Tseitlin vs Efimenko |
| 0-1 | 34 |
2001 |
ECC | B90 Sicilian, Najdorf |
| 18. P Varga vs Efimenko |
| 0-1 | 30 |
2001 |
Master Open | E71 King's Indian, Makagonov System (5.h3) |
| 19. A Zhigalko vs Efimenko |
| 0-1 | 40 |
2001 |
Stork YM | B93 Sicilian, Najdorf, 6.f4 |
| 20. J Borisek vs Efimenko |
| 0-1 | 27 |
2001 |
TCh-Europe Boys U18 | B90 Sicilian, Najdorf |
| 21. J Santos vs Efimenko |
| 0-1 | 40 |
2001 |
ECC | E61 King's Indian |
| 22. J Berkvens vs Efimenko |
| 0-1 | 33 |
2001 |
Stork YM | E97 King's Indian |
| 23. Karjakin vs Efimenko |
 | 0-1 | 43 |
2001 |
2nd Governor's Cup | C18 French, Winawer |
| 24. D Rybansky vs Efimenko |
| 0-1 | 52 |
2001 |
TCh-Europe Boys U18 | C00 French Defense |
| 25. Efimenko vs Eljanov |
| 0-1 | 56 |
2001 |
ch-UKR | B33 Sicilian |
