| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. L K Nilsson vs M Matthiesen |
| 1-0 | 30 | 2000 | Politiken Cup | B57 Sicilian |
| 27. M Matthiesen vs H H Schmidt |
| 1-0 | 38 | 2000 | Politiken Cup | D35 Queen's Gambit Declined |
| 28. N Laursen vs M Matthiesen |
| 1-0 | 27 | 2000 | Politiken Cup | B47 Sicilian, Taimanov (Bastrikov) Variation |
| 29. M Matthiesen vs N Petersen |
| ½-½ | 61 | 2000 | Politiken Cup | D31 Queen's Gambit Declined |
| 30. M Matthiesen vs O Berg |
| 1-0 | 35 | 2000 | Politiken Cup | B52 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 31. T Hoff vs M Matthiesen |
| ½-½ | 41 | 2000 | Politiken Cup | E73 King's Indian |
| 32. M Matthiesen vs H Mortensen |
| 1-0 | 43 | 2000 | Politiken Cup | E91 King's Indian |
| 33. D Palo vs M Matthiesen |
| 1-0 | 36 | 2000 | Politiken Cup | E34 Nimzo-Indian, Classical, Noa Variation |
| 34. M Matthiesen vs N K Kragh |
| ½-½ | 37 | 2000 | Politiken Cup | A40 Queen's Pawn Game |
| 35. F Preuss vs M Matthiesen |
| 0-1 | 22 | 2000 | Politiken Cup | B06 Robatsch |
| 36. M Matthiesen vs J B Pedersen |
| 1-0 | 33 | 2001 | Aarhus-ch | D66 Queen's Gambit Declined, Orthodox Defense, Bd3 line |
| 37. M Matthiesen vs B H Andersen |
| 1-0 | 61 | 2003 | Politiken Cup | D85 Grunfeld |
| 38. S Bjerke vs M Matthiesen |
| 0-1 | 52 | 2003 | Politiken Cup | E81 King's Indian, Samisch |
| 39. M Matthiesen vs Koneru |
| ½-½ | 40 | 2003 | Politiken Cup | E15 Queen's Indian |
| 40. Nyback vs M Matthiesen |
 | 0-1 | 34 | 2003 | Politiken Cup | E97 King's Indian |
| 41. M Matthiesen vs R Skytte |
| ½-½ | 40 | 2003 | Politiken Cup | B45 Sicilian, Taimanov |
| 42. M Matthiesen vs G Michelakis |
| ½-½ | 29 | 2003 | Politiken Cup | B33 Sicilian |
| 43. C Ward vs M Matthiesen |
| 1-0 | 22 | 2003 | Politiken Cup | D17 Queen's Gambit Declined Slav |
| 44. M Lonborg vs M Matthiesen |
| 1-0 | 30 | 2003 | Politiken Cup | C44 King's Pawn Game |
| 45. M Matthiesen vs A Bering |
| ½-½ | 37 | 2003 | Politiken Cup | E04 Catalan, Open, 5.Nf3 |
| 46. R E Andersen vs M Matthiesen |
| 0-1 | 41 | 2003 | Politiken Cup | B22 Sicilian, Alapin |
| 47. M Matthiesen vs K Stokke |
| 0-1 | 38 | 2003 | Politiken Cup | E94 King's Indian, Orthodox |
| 48. M Matthiesen vs O Renet |
| 1-0 | 32 | 2004 | European Club Cup | D16 Queen's Gambit Declined Slav |
| 49. H Koch vs M Matthiesen |
| 1-0 | 53 | 2004 | European Club Cup | A00 Uncommon Opening |
| 50. E Llobell Cortell vs M Matthiesen |
| 1-0 | 45 | 2004 | European Club Cup | C43 Petrov, Modern Attack |
Kibitzing
