| Feb 5, 2026 | Krien | 0–1 | Fayard | Round 3: Krien, Hartmut - Fayard, Alain | Caro-Kann Defense: Two Knights Attack | |
| Oct 13, 2025 | Krien | 0–1 | Wichmann | 33. offene S?chsische Senioren-Einzelmeisterschaft | Sicilian Defense: Snyder Variation, Queen Fianchetto Variation | |
| Jul 13, 2025 | Fleischer | 0–1 | Krien | Round 7: Fleischer, Martin - Krien, Hartmut | Alekhine Defense: Scandinavian Variation | |
| Jul 12, 2025 | Krien | ½–½ | Broemel | Round 6: Krien, Hartmut - Broemel, Richard | Caro-Kann Defense | |
| Jul 11, 2025 | Kliewe | 1–0 | Krien | Round 5: Kliewe, Hans-Juergen - Krien, Hartmut | Indian Defense: London System | |
| Jul 10, 2025 | Wulff | 0–1 | Krien | Round 4: Wulff, Ruediger - Krien, Hartmut | Indian Defense: Normal Variation | |
| Jul 8, 2025 | Szenetra | 1–0 | Krien | Round 2: Szenetra, Werner - Krien, Hartmut | King's Indian Attack | |
| Aug 27, 2024 | Matthey | 1–0 | Krien | Round 5: Matthey, Harald - Krien, Hartmut | Caro-Kann Defense: Classical Variation, Flohr Variation | |
| Jul 7, 2024 | Krien | ½–½ | Hauke | Round 7: Krien, Hartmut - Hauke, Hans | Scandinavian Defense: Modern Variation | |
| Jul 6, 2024 | Lapp | 1–0 | Krien | Round 6: Lapp, Karl - Krien, Hartmut | Queen's Pawn Game: London System, with e6 | |
| Jul 5, 2024 | Krien | ½–½ | Andersen | Round 5: Krien, Hartmut - Andersen, Knut | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Jul 4, 2024 | Jacob | 0–1 | Krien | Round 4: Jacob, Barbara - Krien, Hartmut | Nimzo-Larsen Attack: Indian Variation | |
| Jul 3, 2024 | Krien | 0–1 | Wolfgang Krueger | Round 3: Krien, Hartmut - Wolfgang Krueger | Caro-Kann Defense | |
| Jul 2, 2024 | Waagener | ½–½ | Krien | Round 2: Waagener, Ulrich - Krien, Hartmut | Dutch Defense: Stonewall Variation | |
| Oct 26, 2023 | El Gheiadi | * | Krien | 65+ World Senior Championship | ? | |
| Oct 25, 2023 | Krien | * | Doncevic | 65+ World Senior Championship | ? | |
| Oct 12, 2023 | Proschmann | ½–½ | Krien | new tournament description | Caro-Kann Defense: Exchange Variation | |
