| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. K Spraggett vs O Brendel |
| 0-1 | 30 |
1986 |
Vienne | E64 King's Indian, Fianchetto, Yugoslav System |
| 2. Sherzer vs O Brendel |
| ½-½ | 24 |
1988 |
Eger | B32 Sicilian |
| 3. O Brendel vs Ashley |
 | 1-0 | 18 |
1990 |
Groningen (Netherlands) | B56 Sicilian |
| 4. O Brendel vs S Briem |
| 0-1 | 42 |
1990 |
It (open) | C55 Two Knights Defense |
| 5. Petursson vs O Brendel |
| 1-0 | 34 |
1990 |
It Reykjavik (Iceland) | E83 King's Indian, Samisch |
| 6. O Brendel vs A Gunnarsson |
| 1-0 | 51 |
1990 |
Reykjavik | C33 King's Gambit Accepted |
| 7. Glek vs O Brendel |
| 1-0 | 22 |
1991 |
Krumbach op | B30 Sicilian |
| 8. Barbero vs O Brendel |
| 1-0 | 19 |
1991 |
Politiken Cup | E83 King's Indian, Samisch |
| 9. Murey vs O Brendel |
| 1-0 | 42 |
1991 |
It (open), Wien | B32 Sicilian |
| 10. O Brendel vs M Moehrmann |
| 1-0 | 9 |
1991 |
Krumbach | C47 Four Knights |
| 11. I Stohl vs O Brendel |
| 1-0 | 35 |
1992 |
Munich op9192 | E67 King's Indian, Fianchetto |
| 12. S Smagin vs O Brendel |
| 1-0 | 43 |
1993 |
Dortmund op-A | B22 Sicilian, Alapin |
| 13. O Brendel vs Balashov |
| ½-½ | 33 |
1993 |
Dortmund op-A | C77 Ruy Lopez |
| 14. Shirov vs O Brendel |
| ½-½ | 28 |
1995 |
Bundesliga /96 | B36 Sicilian, Accelerated Fianchetto |
| 15. O Brendel vs Ftacnik |
| 1-0 | 26 |
1995 |
Bundesliga /96, Germany | B90 Sicilian, Najdorf |
| 16. Uhlmann vs O Brendel |
| ½-½ | 44 |
1995 |
BL 1994/95 GER | E73 King's Indian |
| 17. O Brendel vs V Beim |
| 0-1 | 49 |
1996 |
Vienna op | B06 Robatsch |
| 18. Pavasovic vs O Brendel |
| 0-1 | 42 |
1996 |
Vienna op | B22 Sicilian, Alapin |
| 19. O Brendel vs Kharlov |
| 0-1 | 46 |
1996 |
Vienna op | B33 Sicilian |
| 20. O Brendel vs Kasimdzhanov |
| ½-½ | 30 |
1998 |
Bundesliga 9899 | B06 Robatsch |
| 21. O Brendel vs V Tukmakov |
| 0-1 | 28 |
1999 |
Lenk op | B18 Caro-Kann, Classical |
| 22. O Brendel vs W Kaiser |
| 1-0 | 43 |
1999 |
Bundesliga 1998/99, Germany | B80 Sicilian, Scheveningen |
| 23. V Tukmakov vs O Brendel |
| ½-½ | 43 |
1999 |
Lenk op | B36 Sicilian, Accelerated Fianchetto |
| 24. C August vs O Brendel |
| 0-1 | 38 |
1999 |
Bundesliga 1998/99, Germany | B36 Sicilian, Accelerated Fianchetto |
| 25. T Heinatz vs O Brendel |
| 1-0 | 41 |
1999 |
Bundesliga 1998/99, Germany | B39 Sicilian, Accelerated Fianchetto, Breyer Variation |