| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. P Hulshof vs M de Jong |
| 1-0 | 39 | 1994 | Groningen Open | A07 King's Indian Attack |
| 27. M de Jong vs E Sazonova |
| ½-½ | 49 | 1994 | Groningen Open | B33 Sicilian |
| 28. O Tarasova vs M de Jong |
| ½-½ | 45 | 1994 | Groningen Open | A16 English |
| 29. M de Jong vs L Agergaard |
| 1-0 | 53 | 1994 | Groningen Open | B32 Sicilian |
| 30. C Mathonia vs M de Jong |
| ½-½ | 45 | 1994 | Groningen Open | C15 French, Winawer |
| 31. M de Jong vs M Riemens |
| 0-1 | 44 | 1994 | Groningen Open | B28 Sicilian, O'Kelly Variation |
| 32. M de Jong vs M Bosboom |
| 1-0 | 43 | 1995 | NED-chT 1995/96 | B90 Sicilian, Najdorf |
| 33. R Kuijf vs M de Jong |
| 0-1 | 37 | 1995 | Leeuwarden Open | C07 French, Tarrasch |
| 34. M de Jong vs D Reinderman |
| ½-½ | 48 | 1995 | Leeuwarden Open | C41 Philidor Defense |
| 35. Nijboer vs M de Jong |
| 0-1 | 40 | 1995 | Leeuwarden Open | C16 French, Winawer |
| 36. M de Jong vs J Horvath |
| ½-½ | 40 | 1995 | Leeuwarden Open | A05 Reti Opening |
| 37. Kharlov vs M de Jong |
| 1-0 | 43 | 1995 | Leeuwarden Open | A10 English |
| 38. M de Jong vs H Stefansson |
| 1-0 | 44 | 1995 | Leeuwarden Open | B58 Sicilian |
| 39. C Horvath vs M de Jong |
| ½-½ | 27 | 1995 | Leeuwarden Open | E73 King's Indian |
| 40. M de Jong vs Van der Wiel |
| ½-½ | 29 | 1995 | Leeuwarden Open | B90 Sicilian, Najdorf |
| 41. Nunn vs M de Jong |
 | 1-0 | 24 | 1995 | Leeuwarden Open | C16 French, Winawer |
| 42. Yagupov vs M de Jong |
| 1-0 | 38 | 1995 | Groningen Open | C00 French Defense |
| 43. Y Afek vs M de Jong |
| ½-½ | 60 | 1995 | Groningen Open | C02 French, Advance |
| 44. J Pomes Marcet vs M de Jong |
| 1-0 | 45 | 1995 | Groningen Open | E77 King's Indian |
| 45. M de Jong vs A Berelowitsch |
| 1-0 | 58 | 1995 | Groningen Open | B08 Pirc, Classical |
| 46. S Ernst vs M de Jong |
| 1-0 | 63 | 1996 | Groningen SC op | C01 French, Exchange |
| 47. S Ernst vs M de Jong |
| 1-0 | 79 | 1997 | Leeuwarden op | D79 Neo-Grunfeld, 6.O-O, Main line |
| 48. G Welling vs M de Jong |
| 1-0 | 34 | 1997 | Leeuwarden | C15 French, Winawer |
| 49. M Ulybin vs M de Jong |
| 1-0 | 73 | 1997 | Leeuwarden op | E00 Queen's Pawn Game |
| 50. Oll vs M de Jong |
| 1-0 | 21 | 1997 | VAM Hoogeveen Open | A45 Queen's Pawn Game |
Kibitzing
