| May 17, 2026 | Vatter | * | Preundler | Round 2: Vatter, Hans-Joachim - Preundler, Stefan | ? | |
| Apr 12, 2026 | Oeztuerk | 1–0 | Vatter | Round 8: Oeztuerk, Yasin-Safa - Vatter, Hans-Joachim | Saragossa Opening | |
| Mar 8, 2026 | Hryshko | 1–0 | Vatter | Rapide Festival Nancy 2026 | Queen's Pawn Game: Chigorin Variation, Alburt Defense | |
| Mar 8, 2026 | Vatter | 0–1 | GULIYEV | Rapide Festival Nancy 2026 | Sicilian Defense: Delayed Alapin Variation, with e6 | |
| Mar 8, 2026 | Baltzer | 0–1 | Vatter | Rapide Festival Nancy 2026 | Benoni Defense: Old Benoni | |
| Mar 8, 2026 | Vatter | 0–1 | BAUER | Rapide Festival Nancy 2026 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Mar 8, 2026 | Vatter | 1–0 | Zienkiewicz | Rapide Festival Nancy 2026 | Modern Defense: Standard Line | |
| Mar 7, 2026 | Vatter | 1–0 | Vuillemard | Blitz Festival Nancy 2026 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Mar 7, 2026 | Adrian | 0–1 | Vatter | Blitz Festival Nancy 2026 | Queen's Pawn Game: Zukertort Variation | |
| Mar 7, 2026 | Vatter | 0–1 | Decuigniere | Blitz Festival Nancy 2026 | Sicilian Defense: Chekhover Variation | |
| Mar 7, 2026 | Jacquot | 1–0 | Vatter | Blitz Festival Nancy 2026 | Scandinavian Defense: Gubinsky-Melts Defense | |
| Mar 7, 2026 | Vatter | 0–1 | Felten | Blitz Festival Nancy 2026 | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Mar 7, 2026 | Dautel | 0–1 | Vatter | Blitz Festival Nancy 2026 | Benoni Defense: Old Benoni | |
| Mar 7, 2026 | Vatter | 1–0 | Vitu | Blitz Festival Nancy 2026 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Mar 7, 2026 | Logie | 0–1 | Vatter | Blitz Festival Nancy 2026 | English Opening: King's English Variation, Kramnik-Shirov Counterattack | |
| Nov 30, 2025 | Vatter | 0–1 | Mehmeti | Round 11: Vatter, Hans-Joachim - Mehmeti, Shqipdon | Trompowsky Attack | |
| Nov 30, 2025 | Vatter | 0–1 | D`Costa | Round 6: Vatter, Hans-Joachim - D`Costa, Lorin | Sicilian Defense: Kan Variation, Polugaevsky Variation | |
| Nov 30, 2025 | Vatter | 0–1 | Idrizaj | Round 4: Vatter, Hans-Joachim - Idrizaj, Abedin | Sicilian Defense: Chekhover Variation | |
| Nov 30, 2025 | Vatter | 0–1 | Kalezic | Round 2: Vatter, Hans-Joachim - Kalezic, Blazo | French Defense: Advance Variation, Paulsen Attack | |
| Nov 29, 2025 | Vatter | 0–1 | Plenca | Round 11: Vatter, Hans-Joachim - Plenca, Jadranko | Sicilian Defense: O'Kelly Variation, Venice System | |
| Nov 28, 2025 | Pultinevicius | 1–0 | Vatter | Round 2: Pultinevicius, Paulius - Vatter, Hans-Joachim | English Opening: King's English Variation | |
| Sep 27, 2025 | Vatter | 1–0 | Neumann | Round 7: Vatter, Hans-Joachim - Neumann, Joachim | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Novosibirsk Variation | |
| Sep 26, 2025 | Vatter | ½–½ | Zimmermann | Round 6: Vatter, Hans-Joachim - Zimmermann, Rolf | Scandinavian Defense: Main Line | |
| Sep 25, 2025 | Schulz | 1–0 | Vatter | Round 5: Schulz, Michael - Vatter, Hans-Joachim | Trompowsky Attack | |
| Sep 24, 2025 | Vatter | ½–½ | Seyb | Round 4: Vatter, Hans-Joachim - Seyb, Dieter | Nimzowitsch Defense: Scandinavian Variation, Advance Variation | |
| Sep 23, 2025 | Waldschlaeger | 0–1 | Vatter | Round 3: Waldschlaeger, Juergen - Vatter, Hans-Joachim | Zukertort Opening: Queenside Fianchetto Variation | |
| Sep 22, 2025 | Vatter | ½–½ | Frick | Round 2: Vatter, Hans-Joachim - Frick, Christoph | King's Indian Attack | |
| Sep 21, 2025 | Mueller | 0–1 | Vatter | Round 1: Mueller, Lutz - Vatter, Hans-Joachim | Benoni Defense: Old Benoni | |
| Jul 12, 2025 | Vatter | 0–1 | Heck | 10. Offene Baden-W?rttembergische Senioren-Einzelmeisterschaft | Modern Defense: Standard Defense | |
| Jul 11, 2025 | Dieterle-Bard | 0–1 | Vatter | 10. Offene Baden-W?rttembergische Senioren-Einzelmeisterschaft | French Defense: Tarrasch Variation, Closed Variation | |
| Jul 10, 2025 | Vatter | ½–½ | Wenner | 10. Offene Baden-W?rttembergische Senioren-Einzelmeisterschaft | Rubinstein Opening | |
| Jul 9, 2025 | Mueller | ½–½ | Vatter | 10. Offene Baden-W?rttembergische Senioren-Einzelmeisterschaft | Queen's Pawn Game: London System | |
| Jul 7, 2025 | Carstens | ½–½ | Vatter | 10. Offene Baden-W?rttembergische Senioren-Einzelmeisterschaft | Pirc Defense: Austrian Attack, Dragon Formation | |
| Jul 6, 2025 | Vatter | 1–0 | Braeuner | 10. Offene Baden-W?rttembergische Senioren-Einzelmeisterschaft | Ruy Lopez: Exchange Variation | |
| Jul 5, 2025 | Dushatskiy | 0–1 | Vatter | 10. Offene Baden-W?rttembergische Senioren-Einzelmeisterschaft | King's Indian Defense | |
| Jul 4, 2025 | Vatter | 1–0 | Zerweck | 10. Offene Baden-W?rttembergische Senioren-Einzelmeisterschaft | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Jun 30, 2025 | Vatter | ½–½ | Meyer | 10. Offene Baden-W?rttembergische Senioren-Einzelmeisterschaft | Modern Defense: Pseudo-Austrian Attack | |
| Apr 12, 2025 | Vatter | 0–1 | Large | ESTCC65 | Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation, Early Deviations | |
| Apr 11, 2025 | Mueller | ½–½ | Vatter | ESTCC65 | Richter-Veresov Attack | |
| Apr 10, 2025 | Vatter | 1–0 | Czajkowski | ESTCC65 | French Defense: Advance Variation | |
| Apr 8, 2025 | Patola | ½–½ | Vatter | ESTCC65 | Queen's Gambit Declined: Three Knights, Vienna Variation | |
| Apr 6, 2025 | Topchii | 1–0 | Vatter | ESTCC65 | English Opening: King's English Variation, Kramnik-Shirov Counterattack | |
| Apr 5, 2025 | Vatter | ½–½ | Hewson | ESTCC65 | Caro-Kann Defense: Exchange Variation | |
| Nov 28, 2024 | Ibar | ½–½ | Vatter | World Senior Chess Championship 2024 | English Opening: Agincourt Defense, Catalan Defense Accepted | |
| Nov 27, 2024 | Vatter | 0–1 | Taylor | World Senior Chess Championship 2024 | Scandinavian Defense: Portuguese Gambit, Wuss Variation | |
| Nov 26, 2024 | Biro | ½–½ | Vatter | World Senior Chess Championship 2024 | Sicilian Defense: Alapin Variation, Barmen Defense, Milner-Barry Attack | |
| Nov 25, 2024 | Vatter | ½–½ | Piasetski | World Senior Chess Championship 2024 | Modern Defense | |
| Nov 24, 2024 | Vatter | ½–½ | Klimaszewski | World Senior Chess Championship 2024 | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation | |
| Nov 22, 2024 | Privara | 0–1 | Vatter | World Senior Chess Championship 2024 | French Defense: Advance Variation, Euwe Variation | |
| Nov 18, 2024 | Markzon | 1–0 | Vatter | World Senior Chess Championship 2024 | Nimzo-Indian Defense: Three Knights Variation | |
| Oct 29, 2024 | Vatter | 0–1 | Stopa | Round 4: Vatter, Hans-Joachim - Stopa, Jacek | French Defense: Advance Variation, Euwe Variation | |
| Oct 28, 2024 | Heinz | ½–½ | Vatter | Round 3: Heinz, Axel - Vatter, Hans-Joachim | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line | |
| Aug 30, 2024 | Vatter | 1–0 | Schrems | Round 8: Vatter, Hans-Joachim - Schrems, Hermann | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Aug 29, 2024 | Vatter | 1–0 | Zuehlke | Round 7: Vatter, Hans-Joachim - Zuehlke, Burkhard, Dr. | Pirc Defense: Austrian Attack, Unzicker Attack | |
| Aug 28, 2024 | Ellenberg | ½–½ | Vatter | Round 6: Ellenberg, Ekkehard - Vatter, Hans-Joachim | Zukertort Opening: Sicilian Invitation | |
| Aug 27, 2024 | Vatter | 1–0 | Zunker | Round 5: Vatter, Hans-Joachim - Zunker, Reinhard, Dr. | Sicilian Defense: Delayed Alapin Variation, with e6 | |
| Aug 26, 2024 | Byhan | 0–1 | Vatter | Round 4: Byhan, Gert - Vatter, Hans-Joachim | Sicilian Defense: Snyder Variation | |
| Aug 25, 2024 | Vatter | ½–½ | Szymaniak | Round 3: Vatter, Hans-Joachim - Szymaniak, Horst | Sicilian Defense: Chekhover Variation | |
| Aug 24, 2024 | Richter | ½–½ | Vatter | Round 2: Richter, Rainer - Vatter, Hans-Joachim | Queen's Pawn Game: London System | |
| Aug 23, 2024 | Vatter | 1–0 | Schaefer | Round 1: Vatter, Hans-Joachim - Schaefer, Ruediger | Caro-Kann Defense: Exchange Variation | |
| Aug 22, 2024 | Juhnke | 1–0 | Vatter | Round 9: Juhnke, Juergen - Vatter, Hans-Joachim | French Defense: Tarrasch Variation, Chistyakov Defense | |
| Jul 11, 2024 | Vatter | ½–½ | Bykhovsky | 65-1 | Caro-Kann Defense: Exchange Variation | |
| Jul 9, 2024 | Swierczewski | 0–1 | Vatter | wstcc2024o65 | Sicilian Defense: Moscow Variation, Main Line | |
| Jul 7, 2024 | Vatter | 0–1 | Cocozza | 65-1 | Caro-Kann Defense: Advance Variation, Short Variation | |
| Jul 6, 2024 | Vatter | ½–½ | Hewson | 65-1 | Caro-Kann Defense: Advance Variation, Short Variation | |
| Jul 4, 2024 | Littlewood | ½–½ | Vatter | 65-1 | French Defense: Advance Variation, Wade Variation | |
| Jul 3, 2024 | Smith | ½–½ | Vatter | wstcc2024o65 | French Defense: Winawer Variation, Advance Variation | |
| Jul 2, 2024 | Vatter | 1–0 | Bhopal | wstcc2024o65 | Scandinavian Defense: Bronstein Variation | |
| Apr 14, 2024 | Krauseneck | 0–1 | Vatter | Round 9: Krauseneck, Peter, Dr. - Vatter, Hans-Joachim | Sicilian Defense: Kramnik Variation | |
| Apr 13, 2024 | Vatter | ½–½ | Schober | Round 8: Vatter, Hans-Joachim - Schober, Ralf | French Defense: Steinitz Variation, Boleslavsky Variation | |
| Apr 12, 2024 | Belke | ½–½ | Vatter | Round 7: Belke, Frank, Dr. - Vatter, Hans-Joachim | Queen's Gambit Declined: Modern Variation | |
| Apr 11, 2024 | Vatter | ½–½ | Babar | Round 6: Vatter, Hans-Joachim - Babar, Michael | Richter-Veresov Attack: Richter Variation | |
| Apr 10, 2024 | Schott | 0–1 | Vatter | Round 5: Schott, Guido - Vatter, Hans-Joachim | Sicilian Defense: Closed | |
| Apr 9, 2024 | Vatter | ½–½ | Scheckenbach | Round 4: Vatter, Hans-Joachim - Scheckenbach, Franz | Tarrasch Defense: Dubov Tarrasch | |
| Apr 8, 2024 | Mueller | ½–½ | Vatter | Round 3: Mueller, Michael - Vatter, Hans-Joachim | Indian Defense: London System | |
| Apr 7, 2024 | Vatter | 1–0 | Diotallevi | Round 2: Vatter, Hans-Joachim - Diotallevi, Maurizio | Nimzo-Larsen Attack: Classical Variation | |
| Apr 6, 2024 | Schicker | 0–1 | Vatter | Round 1: Schicker, Rudolf - Vatter, Hans-Joachim | Zukertort Opening: Pirc Invitation | |
| Dec 14, 2023 | Yuffa | 1–0 | Vatter | European Rapid Championship | Catalan Opening: Open Defense | |
| Oct 26, 2023 | Kaldis | * | Vatter | 65+ World Senior Championship | ? | |
| Jul 20, 2023 | Vatter | 1–0 | Gal | European Senior Team Chess Championship 2023 65+ | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Jul 19, 2023 | Gasik | ½–½ | Vatter | European Senior Team Chess Championship 2023 65+ | English Opening: King's English Variation, Four Knights Variation, Fianchetto Line, with Nb6 | |
| Jul 18, 2023 | Vatter | ½–½ | Roos | European Senior Team Chess Championship 2023 65+ | French Defense: Winawer Variation, Advance Variation | |
| Jul 17, 2023 | Large | ½–½ | Vatter | European Senior Team Chess Championship 2023 65+ | Scandinavian Defense: Gubinsky-Melts Defense | |
| Jul 16, 2023 | Vatter | 0–1 | Lanc | European Senior Team Chess Championship 2023 65+ | Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation, Nyezhmetdinov Attack | |
| Jul 15, 2023 | Vatter | 1–0 | Czajkowski | European Senior Team Chess Championship 2023 65+ | French Defense: Advance Variation, Wade Variation | |
| Jul 14, 2023 | Wahlbom | 1–0 | Vatter | European Senior Team Chess Championship 2023 65+ | Philidor Defense: Lion Variation | |
| Jul 13, 2023 | Bachmann | ½–½ | Vatter | European Senior Team Chess Championship 2023 65+ | Catalan Opening | |
| Jul 12, 2023 | Vatter | 1–0 | Wood | European Senior Team Chess Championship 2023 65+ | French Defense: Advance Variation, Euwe Variation | |
| Aug 12, 2022 | Vatter | 1–0 | Andrijenko | 65+ German Senior Championship | Grünfeld Defense: Brinckmann Attack | |
| Jun 25, 2022 | Hadzovic | 1–0 | Vatter | Pula Open | Sicilian Defense: Closed, Traditional | |
| Jun 22, 2022 | Vatter | 0–1 | Lindgren | Pula Open | Caro-Kann Defense: Exchange Variation | |