| Apr 25, 2026 | Nevanlinna | ½–½ | Buchal | Round 6: Nevanlinna, Risto - Buchal, Stephan | Pirc Defense | |
| Apr 23, 2026 | Haik | ½–½ | Buchal | Round 5: Haik, Aldo - Buchal, Stephan | King's Indian Defense: Exchange Variation | |
| Apr 22, 2026 | Buchal | ½–½ | Kosten | Round 4: Buchal, Stephan - Kosten, Anthony C. | English Opening: Anglo-Indian Defense | |
| Oct 19, 2025 | Kieselbach | 1–0 | Buchal | Runde 2: SK Lehrte - Bremen | Pirc Defense: Classical Variation | |
| Aug 31, 2024 | Buchal | ½–½ | Kaeding | Round 9: Buchal, Stephan - Kaeding, Rainer | English Opening: King's English Variation | |
| Aug 27, 2024 | Buchal | 1–0 | Zuehlke | Round 5: Buchal, Stephan - Zuehlke, Burkhard, Dr. | English Opening: Great Snake Variation | |
| Aug 26, 2024 | Dekan | ½–½ | Buchal | Round 4: Dekan, Hans - Buchal, Stephan | Pirc Defense | |
| Aug 25, 2024 | Buchal | 1–0 | Kierzek | Round 3: Buchal, Stephan - Kierzek, Mira | English Opening: King's English Variation | |
| Aug 24, 2024 | Vasiljev | 0–1 | Buchal | Round 2: Vasiljev, Jurij - Buchal, Stephan | King's Indian Defense: Fianchetto Variation, Uhlmann-Szabo System | |
| Aug 23, 2024 | Buchal | 1–0 | Gerl | Round 1: Buchal, Stephan - Gerl, Hans, Dr. | English Opening: King's English Variation | |
| Aug 22, 2024 | Podat | ½–½ | Buchal | Round 8: Podat, Vladimir - Buchal, Stephan | Pirc Defense: Classical Variation | |
| Aug 22, 2024 | Buchal | ½–½ | Juhnke | Round 7: Buchal, Stephan - Juhnke, Juergen | English Opening: Anglo-Indian Defense, King's Indian Formation | |
| Aug 22, 2024 | Zimmermann | 0–1 | Buchal | Round 6: Zimmermann, Rolf - Buchal, Stephan | Modern Defense: Three Pawns Attack | |
| Jul 28, 2024 | Joel Paul Ganta | 0–1 | Buchal | 9 rounds modified Swiss | Nimzo-Larsen Attack: Modern Variation | |
| Jul 27, 2024 | Buchal | 0–1 | Thorsen | 9 rounds modified Swiss | English Opening: King's English Variation | |
| Jul 26, 2024 | Yukun Liu | 1–0 | Buchal | 9 rounds modified Swiss | Modern Defense: Standard Defense | |
| Jul 25, 2024 | Buchal | ½–½ | Sachi Jain | 9 rounds modified Swiss | English Opening: Agincourt Defense | |
| Jul 25, 2024 | Buchal | 1–0 | Hald Falkesgaard | 9 rounds modified Swiss | English Opening: Symmetrical Variation, Three Knights, Fianchetto Variation | |
| Jul 24, 2024 | Rakhmangulova | 1–0 | Buchal | 9 rounds modified Swiss | Modern Defense: Two Knights Variation, Suttles Variation | |
| Jul 23, 2024 | Buchal | 1–0 | Brorsen | 9 rounds modified Swiss | English Opening: Caro-Kann Defensive System | |
| Jul 22, 2024 | Buchal | 0–1 | Sengupta | 9 rounds modified Swiss | English Opening: Anglo-Indian Defense | |
| Jun 9, 2024 | Tegetmeier | 0–1 | Buchal | Round 5: Tegetmeier, Birger - Buchal, Stephan | Modern Defense: Standard Defense | |
| Jun 9, 2024 | Buchal | 0–1 | Aden | Round 4: Buchal, Stephan - Aden, Tammo | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Jun 8, 2024 | Tonndorf | ½–½ | Buchal | Round 3: Tonndorf, Matthias - Buchal, Stephan | Modern Defense: Standard Line | |
| May 15, 2024 | Buchal | ½–½ | Bukvic | European Senior Team Chess Championship 2024 - Section 65 + | English Opening: Anglo-Dutch Defense | |
| May 14, 2024 | Lanc | ½–½ | Buchal | European Senior Team Chess Championship 2024 - Section 65 + | Modern Defense: Pseudo-Austrian Attack | |
| May 13, 2024 | Glatt | ½–½ | Buchal | European Senior Team Chess Championship 2024 - Section 65 + | Pirc Defense: Classical Variation, Quiet System, Czech Defense | |
| May 12, 2024 | Buchal | ½–½ | Bergstrom | European Senior Team Chess Championship 2024 - Section 65 + | English Opening | |
| May 11, 2024 | Lee | ½–½ | Buchal | European Senior Team Chess Championship 2024 - Section 65 + | Pirc Defense: Classical Variation, Schlechter Variation | |
| May 10, 2024 | Roos | ½–½ | Buchal | European Senior Team Chess Championship 2024 - Section 65 + | Pirc Defense: Classical Variation, Quiet System, Czech Defense | |
| May 9, 2024 | Buchal | 1–0 | Large | European Senior Team Chess Championship 2024 - Section 65 + | English Opening | |
| May 8, 2024 | Buchal | 1–0 | Vucenovic | European Senior Team Chess Championship 2024 - Section 65 + | English Opening: King's English Variation, Four Knights Variation, Fianchetto Line | |
| May 7, 2024 | Weinwurm | 0–1 | Buchal | European Senior Team Chess Championship 2024 - Section 65 + | Modern Defense: Standard Line | |
| Aug 12, 2022 | Klein | 0–1 | Buchal | 65+ German Senior Championship | Modern Defense | |
