| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. T Sorensen vs M Olesen |
| 0-1 | 30 | 1990 | Taastrup-B | A31 English, Symmetrical, Benoni Formation |
| 27. M Olesen vs M Bus |
| 0-1 | 30 | 1990 | Taastrup-B | C07 French, Tarrasch |
| 28. M Olesen vs I Bern |
| 0-1 | 52 | 1990 | Taastrup-B | A90 Dutch |
| 29. M Olesen vs J Dory |
| 0-1 | 38 | 1990 | Taastrup-B | A02 Bird's Opening |
| 30. Z Jasnikowski vs M Olesen |
| ½-½ | 21 | 1990 | Taastrup-B | E62 King's Indian, Fianchetto |
| 31. A Bang vs M Olesen |
| 1-0 | 22 | 1990 | Taastrup-B | E97 King's Indian |
| 32. O W Hartvig vs M Olesen |
| 1-0 | 46 | 1990 | Taastrup-B | A04 Reti Opening |
| 33. L Szabo vs M Olesen |
| 1-0 | 35 | 1991 | Budapest | C15 French, Winawer |
| 34. M Rychagov vs M Olesen |
| 0-1 | 27 | 1991 | Arnold Cup | B76 Sicilian, Dragon, Yugoslav Attack |
| 35. P Rewitz vs M Olesen |
| 0-1 | 66 | 1991 | Copenhagen Open | A81 Dutch |
| 36. M Olesen vs J Simonsen |
| 1-0 | 29 | 1991 | Copenhagen Open | A54 Old Indian, Ukrainian Variation, 4.Nf3 |
| 37. M Olesen vs T Lochte |
| 1-0 | 42 | 1991 | Copenhagen Open | D32 Queen's Gambit Declined, Tarrasch |
| 38. M Olesen vs Y Dokhoian |
| 0-1 | 40 | 1991 | Copenhagen Open | A46 Queen's Pawn Game |
| 39. R Tischbierek vs M Olesen |
| 1-0 | 36 | 1991 | Copenhagen Open | B23 Sicilian, Closed |
| 40. A Holst vs M Olesen |
| 0-1 | 49 | 1991 | Copenhagen Open | A85 Dutch, with c4 & Nc3 |
| 41. R Bator vs M Olesen |
| 1-0 | 20 | 1991 | Copenhagen Open | A80 Dutch |
| 42. E Mednis vs M Olesen |
| 1-0 | 39 | 1991 | Copenhagen Open | A10 English |
| 43. M Olesen vs H Holmsgaard |
| 1-0 | 29 | 1991 | Copenhagen Open | D05 Queen's Pawn Game |
| 44. M Olesen vs T Christensen |
| ½-½ | 39 | 1991 | Copenhagen Open | D21 Queen's Gambit Accepted |
| 45. M Olesen vs S Kishnev |
| ½-½ | 19 | 1991 | Copenhagen Unibank | D44 Queen's Gambit Declined Semi-Slav |
| 46. Suba vs M Olesen |
| 0-1 | 36 | 1991 | Copenhagen Unibank | A15 English |
| 47. M Olesen vs L Vogt |
| ½-½ | 17 | 1991 | Copenhagen Unibank | E96 King's Indian, Orthodox, 7...Nbd7, Main line |
| 48. M Olesen vs C Hoi |
| 0-1 | 37 | 1991 | Copenhagen Unibank | A75 Benoni, Classical with ...a6 and 10...Bg4 |
| 49. J Hector vs M Olesen |
| ½-½ | 28 | 1991 | Copenhagen Unibank | B23 Sicilian, Closed |
| 50. M Olesen vs H Danielsen |
 | ½-½ | 63 | 1991 | Copenhagen Unibank | D05 Queen's Pawn Game |
Kibitzing
