| Jul 24, 2026 | Tueckmantel | 0–1 | Huhndorf | Round 8: Tueckmantel, Rene - Huhndorf, Arnold | English Opening: Symmetrical Variation, Botvinnik System | |
| Jul 23, 2026 | Huhndorf | ½–½ | Roth | Round 7: Huhndorf, Arnold - Roth, Thorsten | English Opening: Symmetrical Variation, Three Knights, Fianchetto Variation | |
| Jul 22, 2026 | Tymoshenko | 1–0 | Huhndorf | Round 6: Tymoshenko, Ihor - Huhndorf, Arnold | Benoni Defense | |
| Jul 21, 2026 | Huhndorf | 1–0 | Dubiel | Round 5: Huhndorf, Arnold - Dubiel, Jacek | English Opening: Agincourt Defense | |
| Jul 20, 2026 | Huhndorf | ½–½ | Zeller | Round 4: Huhndorf, Arnold - Zeller, Frank | English Opening: Romanishin Gambit | |
| Jul 19, 2026 | Hochgraefe | ½–½ | Huhndorf | Round 3: Hochgraefe, Markus, Dr. - Huhndorf, Arnold | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| Jul 18, 2026 | Huhndorf | 1–0 | Daemering | Round 2: Huhndorf, Arnold - Daemering, Katrin | King's Indian Defense: Karpov System | |
| Jul 17, 2026 | Kaiser | 0–1 | Huhndorf | Round 1: Kaiser, Michael - Huhndorf, Arnold | Rapport-Jobava System | |
| Oct 4, 2025 | Huhndorf | 0–1 | Motuz | European individual senior chess championship 2025 - Open 50+, Rabac, Croatia | ? | |
| Oct 3, 2025 | Mrva | 1–0 | Huhndorf | European individual senior chess championship 2025 - Open 50+, Rabac, Croatia | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| Oct 1, 2025 | Menac Comas | ½–½ | Huhndorf | European individual senior chess championship 2025 - Open 50+, Rabac, Croatia | Sicilian Defense: Accelerated Dragon, Modern Variation | |
| Sep 30, 2025 | Huhndorf | ½–½ | Veleski | European individual senior chess championship 2025 - Open 50+, Rabac, Croatia | King's Indian Defense: Makogonov Variation | |
| Sep 24, 2025 | Huhndorf | 0–1 | Degraeve | European individual senior chess championship 2025 - Open 50+, Rabac, Croatia | Zukertort Opening: Kingside Fianchetto | |
| Apr 6, 2025 | Huhndorf | ½–½ | Hess | Round 9: Huhndorf, Arnold - Hess, Christian | English Opening: Symmetrical Variation | |
| Mar 31, 2025 | Scheckenbach | ½–½ | Huhndorf | Round 3: Scheckenbach, Franz - Huhndorf, Arnold | Sicilian Defense: Closed, Traditional | |
| Jul 17, 2024 | Huhndorf | 1–0 | Siraj | Slovakia chess open PN 24 | English Opening: Agincourt Defense, Catalan Defense Accepted | |
| Jul 16, 2024 | Pechacek | 0–1 | Huhndorf | Slovakia chess open PN 24 | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| Jul 15, 2024 | Huhndorf | ½–½ | Loffay | Slovakia chess open PN 24 | Dutch Defense: Fianchetto Attack | |
| Jul 14, 2024 | Kruzliak | 0–1 | Huhndorf | Slovakia chess open PN 24 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Jul 13, 2024 | Huhndorf | ½–½ | Dokaniev | Slovakia chess open PN 24 | English Opening: Agincourt Defense, Catalan Defense, Semi-Slav Defense | |
| Jul 12, 2024 | Szmolke | 0–1 | Huhndorf | Slovakia chess open PN 24 | Sicilian Defense: Alapin Variation, Smith-Morra Declined | |
| Jul 11, 2024 | Huhndorf | 1–0 | Adamik | Slovakia chess open PN 24 | King's Indian Defense: Normal Variation, Rare Defenses | |
| Jul 9, 2024 | Huhndorf | 0–1 | Filo | Slovakia chess open PN 24 | Catalan Opening: Closed | |