| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. K Lehmann vs P Wacker |
| 1-0 | 54 | 1985 | Bundesliga 1984/85 | C25 Vienna |
| 2. V Ruehrig vs P Wacker |
| 1-0 | 53 | 1985 | Bundesliga 8485 | B52 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 3. P Wacker vs G Doersam |
| 0-1 | 18 | 1987 | Baden-Baden Open | B32 Sicilian |
| 4. Kupreichik vs P Wacker |
| 0-1 | 74 | 1992 | NWL-I 9192 | B29 Sicilian, Nimzovich-Rubinstein |
| 5. J Adamski vs P Wacker |
| ½-½ | 31 | 1993 | Aachen op | A35 English, Symmetrical |
| 6. P Wacker vs S Ivanov |
| ½-½ | 52 | 1993 | Porz op 9394 | D35 Queen's Gambit Declined |
| 7. A Bejaoui vs P Wacker |
| 0-1 | 55 | 2003 | NRW-Liga I | B60 Sicilian, Richter-Rauzer |
| 8. B Kohlweyer vs P Wacker |
| ½-½ | 29 | 2004 | Oberliga NRW 0304 | D34 Queen's Gambit Declined, Tarrasch |
| 9. P Wacker vs T Banusz |
| ½-½ | 97 | 2012 | Cappelle Open | C47 Four Knights |
| 10. V Koziak vs P Wacker |
| 1-0 | 41 | 2012 | 21st Donau Open | A88 Dutch, Leningrad, Main Variation with c6 |
| 11. J Horvath vs P Wacker |
| 1-0 | 35 | 2012 | 21st Donau Open | A04 Reti Opening |
| 12. V Kunin vs P Wacker |
| 1-0 | 39 | 2013 | Cappelle Open | A80 Dutch |
| 13. P Wacker vs P Gros |
| 1-0 | 27 | 2013 | Cappelle Open | B06 Robatsch |
| 14. P Verhaeghe vs P Wacker |
| 0-1 | 48 | 2013 | Cappelle Open | A07 King's Indian Attack |
| 15. P Wacker vs E Vorobiov |
 | 0-1 | 37 | 2013 | Cappelle Open | B22 Sicilian, Alapin |
| 16. P Wacker vs O Jovanic |
| 0-1 | 46 | 2013 | Cappelle Open | B22 Sicilian, Alapin |
| 17. A Kobayashi vs P Wacker |
| 1-0 | 39 | 2013 | Cappelle Open | B32 Sicilian |
| 18. P Wacker vs P Hummel |
| 1-0 | 36 | 2013 | Groningen Chess Festival | B22 Sicilian, Alapin |
| 19. S Azaladze vs P Wacker |
| 1-0 | 25 | 2013 | Groningen Chess Festival | A81 Dutch |
| 20. P Wacker vs D Mager |
| 1-0 | 44 | 2013 | Groningen Chess Festival | A02 Bird's Opening |
| 21. B Kohlweyer vs P Wacker |
| ½-½ | 25 | 2013 | Groningen Chess Festival | E40 Nimzo-Indian, 4.e3 |
| 22. P Wacker vs F Bellia |
| 1-0 | 35 | 2013 | Groningen Chess Festival | C45 Scotch Game |
| 23. S Novikov vs P Wacker |
| 1-0 | 32 | 2013 | Groningen Chess Festival | A46 Queen's Pawn Game |
| 24. P Wacker vs S Arslanov |
| 0-1 | 29 | 2013 | Groningen Chess Festival | B40 Sicilian |
| 25. P Wacker vs N Miezis |
| ½-½ | 67 | 2014 | Cappelle Open | B22 Sicilian, Alapin |
Kibitzing
