| Nov 2, 2025 | Naumann | 1–0 | Wacker | Round 2: Naumann, Alexander - Wacker, Peter | Caro-Kann Defense: Advance Variation, Short Variation | |
| Nov 2, 2024 | Wacker | ½–½ | Llopis de Aysa | Round 9: Wacker, Peter - Llopis de Aysa, Manuel | French Defense: Tarrasch Variation, Morozevich Variation | |
| Nov 1, 2024 | Kirszenberg | ½–½ | Wacker | Round 8: Kirszenberg, Marc - Wacker, Peter | Nimzo-Indian Defense: Kmoch Variation | |
| Oct 31, 2024 | Wacker | ½–½ | Tsyn | Round 7: Wacker, Peter - Tsyn, Igor | French Defense: Winawer Variation, Alekhine Gambit, Kan Variation | |
| Oct 30, 2024 | Van Haastert | 1–0 | Wacker | Round 6: Van Haastert, Edwin - Wacker, Peter | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Oct 29, 2024 | Wacker | 1–0 | Crocker | Round 5: Wacker, Peter - Crocker, Philip J | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Oct 28, 2024 | Mannion | ½–½ | Wacker | Round 4: Mannion, Stephen R - Wacker, Peter | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Oct 27, 2024 | Wacker | ½–½ | Naslund | Round 3: Wacker, Peter - Naslund, Mikael | Scandinavian Defense: Portuguese Gambit, Elbow Variation | |
| Oct 26, 2024 | Wacker | 1–0 | Melero Sanchez | Round 1: Wacker, Peter - Melero Sanchez, Pere | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line | |
| Oct 26, 2024 | Cardili | ½–½ | Wacker | Round 2: Cardili, Mariano - Wacker, Peter | Nimzo-Indian Defense: Normal Variation, Bernstein Defense | |
| Sep 13, 2023 | Wacker | 1–0 | Gollasch | 20. RLP-Senioren-Open | Sicilian Defense: Chekhover Variation | |
| Sep 12, 2023 | Stuemer | 1–0 | Wacker | 20. RLP-Senioren-Open | Queen's Indian Defense: Spassky System | |
| Sep 11, 2023 | Wacker | 1–0 | Bohnstorff | 20. RLP-Senioren-Open | Caro-Kann Defense: Tartakower Variation | |
| Sep 10, 2023 | Kolthoff | ½–½ | Wacker | 20. RLP-Senioren-Open | Caro-Kann Defense: Exchange Variation, Rubinstein Variation | |
| Sep 9, 2023 | Wacker | 1–0 | Zunker | 20. RLP-Senioren-Open | Queen's Gambit Declined: Baltic Defense, Pseudo-Slav | |
| Sep 8, 2023 | Migl | 1–0 | Wacker | 20. RLP-Senioren-Open | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line | |
| Sep 7, 2023 | Wacker | ½–½ | Mertens | 20. RLP-Senioren-Open | Czech Defense | |
| Sep 6, 2023 | Walther | 0–1 | Wacker | 20. RLP-Senioren-Open | Trompowsky Attack | |
| Sep 5, 2023 | Wacker | 1–0 | Meyer | 20. RLP-Senioren-Open | Caro-Kann Defense: Main Line | |
| Aug 12, 2022 | Doeserich | 0–1 | Wacker | 50+ German Senior Championship | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| — | Duboue | 1–0 | Wacker | 41e Open International de Cappelle | Sicilian Defense: Alapin Variation, Smith-Morra Declined | |
