| Nov 10, 2025 | Bofill Mas | 1–0 | Stern | III OPEN INTERNACIONAL DE AJEDREZ CAP NEGRET +65 | King's Indian Attack | |
| Jul 13, 2025 | Stern | ½–½ | Just | Round 7: Stern, Geoffrey - Just, Joachim | Rapport-Jobava System, with e6 | |
| Jul 12, 2025 | Ellerbrock | ½–½ | Stern | Round 6: Ellerbrock, Manfred - Stern, Geoffrey | Queen's Gambit Declined: Cambridge Springs Defense, Capablanca Variation | |
| Jul 11, 2025 | Stern | ½–½ | Stummeyer | Round 5: Stern, Geoffrey - Stummeyer, Dieter | Rapport-Jobava System | |
| Jul 10, 2025 | Reimann | ½–½ | Stern | Round 4: Reimann, Reinhold - Stern, Geoffrey | Queen's Pawn Game: Colle System, Traditional Colle | |
| Jul 9, 2025 | Stern | 0–1 | Koehler | Round 3: Stern, Geoffrey - Koehler, Gerhard, Dr. | French Defense: Exchange Variation | |
| Jul 8, 2025 | Winkler | 0–1 | Stern | Round 2: Winkler, Karl - Stern, Geoffrey | French Defense: Exchange Variation | |
| Jul 7, 2025 | Stern | 1–0 | Rudolph | Round 1: Stern, Geoffrey - Rudolph, Karl-Heinz, Dr. | Rapport-Jobava System | |
| Oct 25, 2024 | Stern | 1–0 | Jelesijevic | 39th European Chess Club Cup | Rapport-Jobava System | |
| Oct 24, 2024 | Davies | 0–1 | Stern | 39th European Chess Club Cup | French Defense: Horwitz Attack | |
| Oct 22, 2024 | Stern | 0–1 | Evenshaug | 39th European Chess Club Cup | Rapport-Jobava System | |
| Oct 21, 2024 | Stern | 0–1 | Pacher | 39th European Chess Club Cup | Rapport-Jobava System | |
| Oct 20, 2024 | Geltz | ½–½ | Stern | 39th European Chess Club Cup | Queen's Pawn Game: London System | |
| Aug 31, 2024 | Jendel | ½–½ | Stern | Round 9: Jendel, Christian - Stern, Geoffrey | English Opening: Agincourt Defense | |
| Aug 23, 2024 | Koscielski | 1–0 | Stern | Round 1: Koscielski, Janusz - Stern, Geoffrey | French Defense: Tarrasch Variation, Guimard Defense, Main Line | |
| Aug 19, 2023 | Stern | ½–½ | Kucera | MCR 50+ | Czech Defense | |
| Aug 18, 2023 | Llopis de Aysa | ½–½ | Stern | MCR 50+ | Queen's Gambit Declined: Cambridge Springs Defense, Yugoslav Variation | |
| Aug 17, 2023 | Stern | ½–½ | Malinovsky | MCR 50+ | Queen's Pawn Game: Chigorin Variation, Alburt Defense | |
| Aug 16, 2023 | Nikolaev | ½–½ | Stern | MCR 50+ | Queen's Gambit Declined: Barmen Variation | |
| Aug 13, 2023 | Stern | ½–½ | Navratil | MCR 50+ | Rapport-Jobava System | |
| Aug 13, 2023 | Matousek | 1–0 | Stern | MCR 50+ | French Defense: Paulsen Variation | |
| Sep 23, 2021 | Stern | 0–1 | Hagen | 36th European Club Cup | Rapport-Jobava System | |
| Sep 20, 2021 | Carroll | * | Stern | 36th European Club Cup | ? | |
