| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. Gheorghiu vs J Sinowjew |
| 1-0 | 50 | 1987 | Graz Open | E92 King's Indian |
| 2. J Sinowjew vs W N Watson |
| 1-0 | 23 | 1987 | Graz Open | B13 Caro-Kann, Exchange |
| 3. T Lenz vs J Sinowjew |
| 1-0 | 29 | 1987 | Graz Open | A15 English |
| 4. W Pils vs J Sinowjew |
| ½-½ | 35 | 1987 | Graz Open | A48 King's Indian |
| 5. R Camejo Almeida vs J Sinowjew |
| 0-1 | 32 | 1990 | World Junior Championship | E62 King's Indian, Fianchetto |
| 6. K Moutousis vs J Sinowjew |
| 1-0 | 26 | 1990 | World Junior Championship | B46 Sicilian, Taimanov Variation |
| 7. J Sinowjew vs P Sjodahl |
| 1-0 | 61 | 1990 | World Junior Championship | B39 Sicilian, Accelerated Fianchetto, Breyer Variation |
| 8. J Sinowjew vs Z Varga |
| ½-½ | 15 | 1990 | World Junior Championship | B44 Sicilian |
| 9. C Lutz vs J Sinowjew |
| ½-½ | 25 | 1990 | World Junior Championship | E98 King's Indian, Orthodox, Taimanov, 9.Ne1 |
| 10. D Pedzich vs J Sinowjew |
| 1-0 | 34 | 1990 | World Junior Championship | B49 Sicilian, Taimanov Variation |
| 11. J Sinowjew vs N Mitkov |
| 0-1 | 65 | 1990 | World Junior Championship | C78 Ruy Lopez |
| 12. J Sinowjew vs J Sorensen |
| 1-0 | 50 | 1990 | World Junior Championship | C02 French, Advance |
| 13. J Sinowjew vs M Pardo |
| 1-0 | 34 | 1990 | World Junior Championship | B07 Pirc |
| 14. R Todor vs J Sinowjew |
| 0-1 | 52 | 1990 | Vienna Open | E62 King's Indian, Fianchetto |
| 15. J Sinowjew vs K Mahdy |
| 0-1 | 43 | 1990 | Vienna Open | C70 Ruy Lopez |
| 16. J Sinowjew vs G Miniboeck |
| ½-½ | 19 | 1990 | Vienna Open | B92 Sicilian, Najdorf, Opocensky Variation |
| 17. L Somlai vs J Sinowjew |
| 1-0 | 56 | 1990 | European Junior Championship 1990/91 | B44 Sicilian |
| 18. J Sinowjew vs J Buckley |
| 1-0 | 43 | 1990 | European Junior Championship 1990/91 | B01 Scandinavian |
| 19. J Sinowjew vs S B Hansen |
| 1-0 | 39 | 1990 | European Junior Championship 1990/91 | B72 Sicilian, Dragon |
| 20. J Hall vs J Sinowjew |
| 1-0 | 20 | 1990 | European Junior Championship 1990/91 | A45 Queen's Pawn Game |
| 21. J Sinowjew vs R Djurhuus |
| 1-0 | 36 | 1990 | European Junior Championship 1990/91 | A04 Reti Opening |
| 22. R Camejo Almeida vs J Sinowjew |
| ½-½ | 34 | 1990 | European Junior Championship 1990/91 | E62 King's Indian, Fianchetto |
| 23. J Sinowjew vs D Moldovan |
| 0-1 | 27 | 1990 | European Junior Championship 1990/91 | B39 Sicilian, Accelerated Fianchetto, Breyer Variation |
| 24. P Jaracz vs J Sinowjew |
| ½-½ | 79 | 1990 | European Junior Championship 1990/91 | B44 Sicilian |
| 25. J Sinowjew vs T Polak |
| 1-0 | 44 | 1990 | European Junior Championship 1990/91 | B32 Sicilian |
Kibitzing
