| Oct 15, 2025 | Babrikowski | 1–0 | Brettschneider | 33. offene S?chsische Senioren-Einzelmeisterschaft | Sicilian Defense: Alapin Variation, Barmen Defense | |
| Apr 1, 2025 | Brettschneider | 0–1 | Schoetzig | Round 4: Brettschneider, Karl - Schoetzig, Detlef | English Opening: King's English Variation, Four Knights Variation, Fianchetto Line, with Nb6 | |
| Jul 7, 2024 | Brettschneider | ½–½ | Arlt | 9. offene Baden-W?rttembergische Senioren-Einzelmeisterschaft | English Opening: King's English Variation, Kramnik-Shirov Counterattack | |
| Jul 6, 2024 | Weisenburger | ½–½ | Brettschneider | 9. offene Baden-W?rttembergische Senioren-Einzelmeisterschaft | Sicilian Defense: McDonnell Attack | |
| Apr 13, 2024 | Brettschneider | 0–1 | Tschlatscher | W?rttembergische Schnellschach Mannschaftsmeisterschaft 2024 | English Opening: Anglo-Indian Defense, Hedgehog System | |
| Apr 13, 2024 | Brettschneider | ½–½ | Schuh | W?rttembergische Schnellschach Mannschaftsmeisterschaft 2024 | English Opening: Symmetrical Variation, Rubinstein Variation | |
| Apr 13, 2024 | Brettschneider | ½–½ | Retzlaff | W?rttembergische Schnellschach Mannschaftsmeisterschaft 2024 | English Opening: King's English Variation, Two Knights Variation, Reversed Dragon | |
| Apr 13, 2024 | Brettschneider | 1–0 | Siegle | W?rttembergische Schnellschach Mannschaftsmeisterschaft 2024 | English Opening: Anglo-Grünfeld Defense | |
| Apr 13, 2024 | Velithkov | 0–1 | Brettschneider | W?rttembergische Schnellschach Mannschaftsmeisterschaft 2024 | Sicilian Defense: Mengarini Variation | |
| Apr 13, 2024 | Walliser | 1–0 | Brettschneider | W?rttembergische Schnellschach Mannschaftsmeisterschaft 2024 | Sicilian Defense: Old Sicilian | |
| Apr 13, 2024 | Kaiser | 0–1 | Brettschneider | W?rttembergische Schnellschach Mannschaftsmeisterschaft 2024 | ? | |
| Apr 13, 2024 | Eisele | 0–1 | Brettschneider | W?rttembergische Schnellschach Mannschaftsmeisterschaft 2024 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Oct 13, 2023 | Moeller | 1–0 | Brettschneider | new tournament description | Dutch Defense | |
| — | Brettschneider | 0–1 | Vautrin | Round 2: Brettschneider, Karl - Vautrin, Stefan | English Opening: Symmetrical Variation, Botvinnik System Reversed, with e3 | |
| — | Brettschneider | ½–½ | Broemel | Round 4: Brettschneider, Karl - Broemel, Richard | English Opening: Caro-Kann Defensive System | |
| — | Brettschneider | ½–½ | Heikaus | Round 6: Brettschneider, Karl - Heikaus, Frank | English Opening: Great Snake Variation | |
| — | Brettschneider | 1–0 | Heller | Round 8: Brettschneider, Karl - Heller, Achim | English Opening: Agincourt Defense | |
| — | Ranker | 0–1 | Brettschneider | Round 3: Ranker, Klemens - Brettschneider, Karl | Sicilian Defense: Bowdler Attack | |
| — | Heck | ½–½ | Brettschneider | Round 5: Heck, Norbert - Brettschneider, Karl | Dutch Defense | |
| — | Huettemann | ½–½ | Brettschneider | Round 7: Huettemann, Karl-Heinz - Brettschneider, Karl | English Opening: Anglo-Dutch Defense | |
| — | Schmidt | ½–½ | Brettschneider | Round 9: Schmidt, Matthias - Brettschneider, Karl | Dutch Defense | |
