| 11 ago 2026 | Pirrot, Dieter 2312 | Babrikowski, Peter, Dr. 2179 | 1-0 | B22 Defensa Siciliana: Alapin Variation, Barmen Defense | 23. Rheinland-Pfalz Senioren Open | 55 | Ver |
| 11 ago 2026 | Heck, Norbert 2231 | Pirrot, Dieter 2312 | ½-½ | A96 Defensa Holandesa: Classical Variation | 23. Rheinland-Pfalz Senioren Open | 77 | Ver |
| 11 ago 2026 | Pirrot, Dieter 2312 | Behrens, Harald 2184 | 1-0 | C02 Defensa Francesa: Advance Variation, Wade Variation | 23. Rheinland-Pfalz Senioren Open | 41 | Ver |
| 11 ago 2026 | Boidman, Yuri 2228 | Pirrot, Dieter 2312 | ½-½ | B10 Defensa Caro-Kann: Endgame Variation | 23. Rheinland-Pfalz Senioren Open | 42 | Ver |
| 11 ago 2026 | Pirrot, Dieter 2312 | Schulz, Klaus-Juergen 2307 | ½-½ | B12 Defensa Caro-Kann: Advance Variation, Tal Variation | 23. Rheinland-Pfalz Senioren Open | 26 | Ver |
| 11 ago 2026 | Pirrot, Dieter 2312 | Siebenhaar, Erich 2070 | 1-0 | B06 Defensa Moderna: Modern Pterodactyl | 23. Rheinland-Pfalz Senioren Open | 13 | Ver |
| 11 ago 2026 | Wild, Helmut 2005 | Pirrot, Dieter 2312 | 0-1 | A84 Defensa Holandesa: Rubinstein Variation | 23. Rheinland-Pfalz Senioren Open | 40 | Ver |