| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 51. M Duppel vs A Kveinys |
| ½-½ | 43 | 2000 | Bundesliga 2000/01 | B40 Sicilian |
| 52. M Duppel vs C Sakkal |
| 1-0 | 23 | 2000 | Boeblinger Open | D35 Queen's Gambit Declined |
| 53. M Duppel vs Jobava |
| 1-0 | 48 | 2000 | Boeblinger Open | E94 King's Indian, Orthodox |
| 54. H Messner vs M Duppel |
| 0-1 | 20 | 2000 | Boeblinger Open | D02 Queen's Pawn Game |
| 55. T Luther vs M Duppel |
| 1-0 | 40 | 2000 | Boeblinger Open | C03 French, Tarrasch |
| 56. M Duppel vs P Kranzl |
| 1-0 | 48 | 2000 | Boeblinger Open | B12 Caro-Kann Defense |
| 57. M Born vs M Duppel |
| 0-1 | 28 | 2000 | Boeblinger Open | A06 Reti Opening |
| 58. M Duppel vs D Poldauf |
| 1-0 | 37 | 2001 | Bundesliga 2000/01 | C19 French, Winawer, Advance |
| 59. J Pachow vs M Duppel |
| 0-1 | 33 | 2001 | Bundesliga 2000/01 | A06 Reti Opening |
| 60. M Duppel vs P Rouzaud |
 | 0-1 | 8 | 2001 | Cappelle Open | C40 King's Knight Opening |
| 61. M Duppel vs H Teske |
| 0-1 | 49 | 2001 | Bundesliga 2000/01 | C50 Giuoco Piano |
| 62. G Sandner vs M Duppel |
| ½-½ | 42 | 2001 | Bundesliga 2000/01 | A14 English |
| 63. M Duppel vs V Georgiev |
| 0-1 | 38 | 2001 | Bundesliga 2000/01 | A42 Modern Defense, Averbakh System |
| 64. Knaak vs M Duppel |
| 1-0 | 33 | 2001 | Bundesliga 2000/01 | E58 Nimzo-Indian, 4.e3, Main line with 8...Bxc3 |
| 65. Sadler vs M Duppel |
| 1-0 | 39 | 2001 | Bundesliga 2000/01 | D11 Queen's Gambit Declined Slav |
| 66. M Duppel vs R Meessen |
| 1-0 | 70 | 2001 | Bundesliga 2000/01 | C18 French, Winawer |
| 67. M Duppel vs B Panic |
| 1-0 | 34 | 2001 | 6th Stuttgart Open | B12 Caro-Kann Defense |
| 68. J Hofrichter vs M Duppel |
 | 0-1 | 23 | 2001 | 6th Stuttgart Open | C12 French, McCutcheon |
| 69. M Duppel vs S Gottschling |
| 1-0 | 45 | 2001 | 6th Stuttgart Open | D37 Queen's Gambit Declined |
| 70. A Reuss vs M Duppel |
| ½-½ | 16 | 2001 | 6th Stuttgart Open | D02 Queen's Pawn Game |
| 71. M Duppel vs Z Ksieski |
| ½-½ | 22 | 2001 | 6th Stuttgart Open | E39 Nimzo-Indian, Classical, Pirc Variation |
| 72. G Fahnenschmidt vs M Duppel |
| 0-1 | 56 | 2001 | 6th Stuttgart Open | D45 Queen's Gambit Declined Semi-Slav |
| 73. M Duppel vs F Zeller |
| ½-½ | 26 | 2001 | 6th Stuttgart Open | E21 Nimzo-Indian, Three Knights |
| 74. P Egeli vs M Duppel |
| ½-½ | 59 | 2001 | Czech Open | A13 English |
| 75. M Duppel vs A Tugui |
| 1-0 | 29 | 2001 | Czech Open | A61 Benoni |
Kibitzing
