| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 51. J Arnason vs M Trepp |
| 1-0 | 41 | 1983 | WchT U26 | B62 Sicilian, Richter-Rauzer |
| 52. M Trepp vs Timman |
| ½-½ | 41 | 1983 | Lugano Open | B90 Sicilian, Najdorf |
| 53. M Trepp vs J Fedorowicz |
| 0-1 | 52 | 1983 | WchT U26 | B56 Sicilian |
| 54. A Huss vs M Trepp |
| 1-0 | 47 | 1984 | Arosa open | A46 Queen's Pawn Game |
| 55. M Trepp vs R Szmetan |
| 1-0 | 53 | 1984 | Suisse tt | B05 Alekhine's Defense, Modern |
| 56. M Trepp vs Spassky |
| 0-1 | 34 | 1984 | Lugano Open | C65 Ruy Lopez, Berlin Defense |
| 57. M Trepp vs D H Campora |
| 0-1 | 52 | 1984 | Amsterdam OHRA | B18 Caro-Kann, Classical |
| 58. G Ligterink vs M Trepp |
 | 1-0 | 28 | 1984 | Amsterdam OHRA | E12 Queen's Indian |
| 59. F Borm vs M Trepp |
| ½-½ | 41 | 1984 | Amsterdam OHRA | B58 Sicilian |
| 60. M Trepp vs A Sznapik |
| ½-½ | 41 | 1984 | Amsterdam OHRA | A07 King's Indian Attack |
| 61. G Hjorth vs M Trepp |
| 1-0 | 47 | 1984 | Amsterdam OHRA | B22 Sicilian, Alapin |
| 62. M Trepp vs K Langeweg |
| 1-0 | 37 | 1984 | Amsterdam OHRA | B44 Sicilian |
| 63. Van der Sterren vs M Trepp |
| 1-0 | 56 | 1984 | Amsterdam OHRA | E16 Queen's Indian |
| 64. M Trepp vs P W van Voorthuijsen |
| 1-0 | 46 | 1984 | Amsterdam OHRA | B07 Pirc |
| 65. J Yrjola vs M Trepp |
| ½-½ | 44 | 1985 | World Youth U26 Team Championship qual-2 | E31 Nimzo-Indian, Leningrad, Main line |
| 66. M Trepp vs Dlugy |
| ½-½ | 51 | 1985 | World Youth U26 Team Championship qual-2 | B17 Caro-Kann, Steinitz Variation |
| 67. M Trepp vs Lobron |
| ½-½ | 29 | 1985 | World Youth U26 Team Championship qual-2 | C04 French, Tarrasch, Guimard Main line |
| 68. M Trepp vs S Slipak |
| 1-0 | 30 | 1985 | World Youth U26 Team Championship qual-2 | B18 Caro-Kann, Classical |
| 69. R Zubieta vs M Trepp |
| 0-1 | 38 | 1985 | World Youth U26 Team Championship qual-2 | B88 Sicilian, Fischer-Sozin Attack |
| 70. F Sarlat vs M Trepp |
| ½-½ | 31 | 1985 | World Youth U26 Team Championship qual-2 | B59 Sicilian, Boleslavsky Variation, 7.Nb3 |
| 71. F Santacruz vs M Trepp |
| ½-½ | 27 | 1985 | World Youth U26 Team Championship Final-B | E17 Queen's Indian |
| 72. B Roselli Mailhe vs M Trepp |
| ½-½ | 29 | 1985 | World Youth U26 Team Championship qual-2 | B59 Sicilian, Boleslavsky Variation, 7.Nb3 |
| 73. M Trepp vs A A Correa |
| ½-½ | 50 | 1985 | World Youth U26 Team Championship Final-B | B01 Scandinavian |
| 74. M Trepp vs C S Matamoros Franco |
| 0-1 | 48 | 1985 | World Youth U26 Team Championship qual-2 | C05 French, Tarrasch |
| 75. M Trepp vs Blatny |
| 0-1 | 32 | 1985 | Tatran Cup | C84 Ruy Lopez, Closed |
Kibitzing
