| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. Minasian vs O Brendel |
| 1-0 | 29 | 1990 | Groningen Open | B30 Sicilian |
| 27. O Brendel vs M Bosboom |
| 0-1 | 39 | 1990 | Groningen Open | B43 Sicilian, Kan, 5.Nc3 |
| 28. T Luther vs O Brendel |
| ½-½ | 29 | 1990 | Groningen Open | B36 Sicilian, Accelerated Fianchetto |
| 29. O Brendel vs A Kolev |
| 0-1 | 29 | 1990 | Groningen Open | C46 Three Knights |
| 30. O Brendel vs M Ashley |
 | 1-0 | 18 | 1990 | Groningen Open | B56 Sicilian |
| 31. O Brendel vs R Wild |
| 1-0 | 41 | 1991 | Krumbach Open | B33 Sicilian |
| 32. O Brendel vs M Tseitlin |
| 1-0 | 38 | 1991 | Krumbach Open | B16 Caro-Kann, Bronstein-Larsen Variation |
| 33. V Lukov vs O Brendel |
| ½-½ | 50 | 1991 | Krumbach Open | B36 Sicilian, Accelerated Fianchetto |
| 34. Dautov vs O Brendel |
| 1-0 | 77 | 1991 | Krumbach Open | E67 King's Indian, Fianchetto |
| 35. O Brendel vs M Moehrmann |
| 1-0 | 9 | 1991 | Krumbach Open | C46 Three Knights |
| 36. Glek vs O Brendel |
| 1-0 | 22 | 1991 | Krumbach Open | B30 Sicilian |
| 37. O Brendel vs E Dragomarezkij |
| ½-½ | 55 | 1991 | Krumbach Open | B43 Sicilian, Kan, 5.Nc3 |
| 38. A Blees vs O Brendel |
| 0-1 | 33 | 1991 | Krumbach Open | E94 King's Indian, Orthodox |
| 39. O Brendel vs G Lorscheid |
| 0-1 | 38 | 1991 | Krumbach Open | B00 Uncommon King's Pawn Opening |
| 40. O Brendel vs A Zlochevskij |
| 0-1 | 43 | 1991 | Krumbach Open | C13 French |
| 41. G Barbero vs O Brendel |
| 1-0 | 19 | 1991 | Politiken Cup | E84 King's Indian, Samisch, Panno Main line |
| 42. O Brendel vs T B Nielsen |
| 0-1 | 30 | 1991 | Politiken Cup | C65 Ruy Lopez, Berlin Defense |
| 43. O Brendel vs P Motwani |
| ½-½ | 39 | 1991 | Politiken Cup | C77 Ruy Lopez |
| 44. O Brendel vs H Theissen |
| ½-½ | 10 | 1991 | Politiken Cup | C46 Three Knights |
| 45. O Brendel vs H Tanggaard |
| 1-0 | 26 | 1991 | Politiken Cup | B80 Sicilian, Scheveningen |
| 46. O Brendel vs B G Christensen |
| 1-0 | 37 | 1991 | Politiken Cup | C77 Ruy Lopez |
| 47. E Pedersen vs O Brendel |
| ½-½ | 51 | 1991 | Politiken Cup | E60 King's Indian Defense |
| 48. P N Andreasen vs O Brendel |
| ½-½ | 49 | 1991 | Politiken Cup | A10 English |
| 49. A Kalka vs O Brendel |
| 0-1 | 25 | 1991 | Politiken Cup | B36 Sicilian, Accelerated Fianchetto |
| 50. O Brendel vs A Budnikov |
| 0-1 | 44 | 1991 | Vienna Open | C01 French, Exchange |
Kibitzing
