| 24 jul 2026 | Schulz, Michael 2095 | Pruefer, Friedbert, Prof. Dr. 2196 | 0-1 | B08 Defensa Pirc: Classical Variation, Schlechter Variation | German Chess Championship 2026 | Seniors 65+ | 34 | Ver |
| 23 jul 2026 | Pruefer, Friedbert, Prof. Dr. 2196 | Mueller, Erich 2065 | 1-0 | C41 Defensa Philidor: Lion Variation, Lion's Claw, with Bc4 and h6 | German Chess Championship 2026 | Seniors 65+ | 41 | Ver |
| 22 jul 2026 | Paulsen, Dirk 2302 | Pruefer, Friedbert, Prof. Dr. 2196 | ½-½ | E60 Defensa India de Rey: Fianchetto Variation, Immediate Fianchetto | German Chess Championship 2026 | Seniors 65+ | 25 | Ver |
| 21 jul 2026 | Raitza, Olaf 2045 | Pruefer, Friedbert, Prof. Dr. 2196 | 0-1 | B06 Defensa Moderna: Lizard Defense, Mittenberger Gambit | German Chess Championship 2026 | Seniors 65+ | 23 | Ver |
| 26 sep 2025 | Vogel, Robert 2160 | Pruefer, Friedbert, Prof. Dr. 2212 | 1-0 | A52 Defensa India: Budapest Gambit Accepted, Main Line, Rubinstein Variation | German Senior Team Championship of the State Associations | S65 | 30 | Ver |
| 24 sep 2025 | Gruzmann, Boris 2088 | Pruefer, Friedbert, Prof. Dr. 2212 | ½-½ | B07 Defensa Pirc: 150 Attack | German Senior Team Championship of the State Associations | S65 | 38 | Ver |
| 21 sep 2025 | Pruefer, Friedbert, Prof. Dr. 2212 | Volkmer, Andreas 2182 | 0-1 | B06 Defensa Moderna: Standard Defense | German Senior Team Championship of the State Associations | S65 | 47 | Ver |