| May 10, 2026 | Sucikova | 1–0 | Sickmann | mitropa-women | Catalan Opening | |
| May 8, 2026 | Rybackova | 1–0 | Sickmann | mitropa-women | Sicilian Defense: Four Knights Variation | |
| May 7, 2026 | Sickmann | ½–½ | Hakimifard | mitropa-women | Sicilian Defense: French Variation, Westerinen Attack | |
| May 6, 2026 | Sickmann | 0–1 | Skarbarchuk | mitropa-women | Ruy Lopez: Morphy Defense, Classical Defense Deferred | |
| May 5, 2026 | Polterauer | ½–½ | Sickmann | mitropa-women | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | |
| May 4, 2026 | Sickmann | ½–½ | Bernard | mitropa-women | Sicilian Defense: Najdorf Variation | |
| May 3, 2026 | Mihelic | 1–0 | Sickmann | mitropa-women | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| May 2, 2026 | Sickmann | ½–½ | Zagorac | mitropa-women | Vienna Game: Falkbeer Variation | |
| Mar 15, 2026 | Kunze | ½–½ | Sickmann | Round 9: Kunze, Kerstin - Sickmann, Lisa | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | |
| Mar 14, 2026 | Sickmann | 1–0 | Fock | Round 8: Sickmann, Lisa - Fock, Madiha | Sicilian Defense: Najdorf Variation, Amsterdam Variation | |
| Dec 21, 2025 | Sickmann | 1–0 | Steinbrenner | Round 5: Sickmann, Lisa - Steinbrenner, Peter | Sicilian Defense: Najdorf Variation, Amsterdam Variation | |
| Nov 30, 2025 | Khrapko | 0–1 | Sickmann | Round 4: Khrapko, Marharyta - Sickmann, Lisa | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Nov 29, 2025 | Sickmann | 0–1 | Kulovana | Round 3: Sickmann, Lisa - Kulovana, Eva | Caro-Kann Defense: Endgame Offer | |
| Oct 15, 2025 | Toroptseva | 1–0 | Sickmann | Round 11: Toroptseva, Yevheniia - Sickmann, Lisa | Sicilian Defense: Taimanov Variation | |
| Oct 13, 2025 | Lyutsinger | 1–0 | Sickmann | Round 9: Lyutsinger, Iren - Sickmann, Lisa | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Oct 11, 2025 | Newansa | ½–½ | Sickmann | Round 7: Newansa, M Esandi - Sickmann, Lisa | Bogo-Indian Defense: Nimzowitsch Variation | |
| Jul 11, 2025 | Trunz | ½–½ | Sickmann | Round 7: Trunz, Michelle - Sickmann, Lisa | Bogo-Indian Defense: Nimzowitsch Variation | |
| Jul 10, 2025 | Sickmann | 1–0 | Djukic | Round 6: Sickmann, Lisa - Djukic, Katarina | Sicilian Defense: Richter-Rauzer Variation | |
| Jul 9, 2025 | Babic | 1–0 | Sickmann | Round 5: Babic, Milana - Sickmann, Lisa | Queen's Pawn Game: Chigorin Variation | |
| Jul 8, 2025 | Sickmann | ½–½ | Zagorac | Round 4: Sickmann, Lisa - Zagorac, Lara | Ruy Lopez: Classical Variation | |
| Jul 7, 2025 | Sickmann | ½–½ | Brinovec | Round 3: Sickmann, Lisa - Brinovec, Lucy | Vienna Game: Falkbeer Variation | |
| Jul 6, 2025 | Beber | 0–1 | Sickmann | Round 2: Beber, Anja - Sickmann, Lisa | Modern Defense | |
| Jul 5, 2025 | Sickmann | ½–½ | Kochavi | Round 1: Sickmann, Lisa - Kochavi, Dana | King's Indian Defense: Sämisch Variation, Sämisch Gambit | |
| Jun 14, 2025 | Weber | 1–0 | Sickmann | DEM U16 2025 | Modern Defense | |
| Jun 13, 2025 | Bangert | ½–½ | Sickmann | DEM U16 2025 | Bogo-Indian Defense: Nimzowitsch Variation | |
| Jun 12, 2025 | Sickmann | ½–½ | Fruth | DEM U16 2025 | English Opening: Symmetrical Variation, Ultra-Symmetrical Variation | |
| Jun 11, 2025 | Blodig | ½–½ | Sickmann | DEM U16 2025 | Modern Defense | |
| Jun 11, 2025 | Sickmann | 1–0 | Jung | DEM U16 2025 | Sicilian Defense: Najdorf Variation | |
| Jun 10, 2025 | Riechenberg | 1–0 | Sickmann | DEM U16 2025 | Anderssen's Opening | |
| Jun 9, 2025 | Sickmann | 1–0 | Khachaturyan | DEM U16 2025 | Caro-Kann Defense: Advance Variation, Tal Variation | |
| Jun 8, 2025 | Skembris | 1–0 | Sickmann | DEM U16 2025 | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | |
| Jun 8, 2025 | Sickmann | 0–1 | Steger | DEM U16 2025 | English Opening: Agincourt Defense, Catalan Defense Accepted | |
| May 25, 2025 | Sickmann | 1–0 | Malinowsky | Round 2: Sickmann, Lisa - Malinowsky, Celina | Sicilian Defense: French Variation | |
| May 25, 2025 | Villip | 1–0 | Sickmann | Round 1: Villip, Sofiia - Sickmann, Lisa | Sicilian Defense: Alapin Variation | |
| May 24, 2025 | Sickmann | 0–1 | Wagner | Round 27: Sickmann, Lisa - Wagner, Dinara | Sicilian Defense: Najdorf Variation, Amsterdam Variation | |
| May 24, 2025 | Pfau | 0–1 | Sickmann | Round 26: Pfau, Beate - Sickmann, Lisa | English Opening: King's English Variation | |
| May 24, 2025 | Sickmann | 1–0 | Anissimova | Round 25: Sickmann, Lisa - Anissimova, Mariya | Sicilian Defense: Kalashnikov Variation | |
| May 24, 2025 | Novikova | 0–1 | Sickmann | Round 24: Novikova, Marharyta - Sickmann, Lisa | Sicilian Defense: Closed, Traditional | |
| May 24, 2025 | Sickmann | 1–0 | Noll | Round 23: Sickmann, Lisa - Noll, Sonja | Rat Defense: Small Center Defense | |
| May 24, 2025 | Khrapko | 1–0 | Sickmann | Round 22: Khrapko, Marharyta - Sickmann, Lisa | English Opening: King's English Variation, Four Knights Variation, Fianchetto Line, with Nb6 | |
| May 24, 2025 | Sickmann | 0–1 | Voicu-Jagodzinsky | Round 21: Sickmann, Lisa - Voicu-Jagodzinsky, Carmen | Sicilian Defense: Kalashnikov Variation | |
| May 24, 2025 | Bursan | 0–1 | Sickmann | Round 20: Bursan, Ana-Maria - Sickmann, Lisa | Sicilian Defense: Closed, Chameleon Variation | |
| May 24, 2025 | Sickmann | 0–1 | Brandt | Round 16: Sickmann, Lisa - Brandt, Carina | ? | |
| May 24, 2025 | Braeuer | 0–1 | Sickmann | Round 15: Braeuer, Vanessa - Sickmann, Lisa | Sicilian Defense: Kramnik Variation | |
| May 24, 2025 | Sickmann | 1–0 | Kosovska | Round 14: Sickmann, Lisa - Kosovska, Olena | Sicilian Defense: Dragon Variation, Yugoslav Attack, Modern Line | |
| May 24, 2025 | Sieber | 0–1 | Sickmann | Round 13: Sieber, Fiona - Sickmann, Lisa | Sicilian Defense: Four Knights Variation | |
| May 24, 2025 | Sickmann | 1–0 | Wilke | Round 12: Sickmann, Lisa - Wilke, Ronja | Caro-Kann Defense: Classical Variation, Spassky Variation | |
| May 24, 2025 | Roessler | 0–1 | Sickmann | Round 11: Roessler, Ulrike - Sickmann, Lisa | Sicilian Defense: Four Knights Variation, Cobra Variation | |
| May 24, 2025 | Sickmann | 1–0 | Neumann | Round 10: Sickmann, Lisa - Neumann, Helena | Caro-Kann Defense: Advance Variation, Tal Variation | |
| May 24, 2025 | Morio | 0–1 | Sickmann | Round 9: Morio, Estelle - Sickmann, Lisa | Bird Opening: Lasker Variation | |
| May 24, 2025 | Sickmann | 1–0 | Braeutigam | Round 8: Sickmann, Lisa - Braeutigam, Katerina | Caro-Kann Defense: Tartakower Variation | |
| May 24, 2025 | Schulze | 1–0 | Sickmann | Round 7: Schulze, Lara - Sickmann, Lisa | Sicilian Defense: French Variation, Westerinen Attack | |
| May 24, 2025 | Sickmann | 1–0 | Wilmink | Round 6: Sickmann, Lisa - Wilmink, Anna | Sicilian Defense: Nimzowitsch Variation, Advance Variation | |
| May 24, 2025 | Stangl | 1–0 | Sickmann | Round 5: Stangl, Anita, Dr. - Sickmann, Lisa | Sicilian Defense: Four Knights Variation | |
| May 24, 2025 | Sickmann | 0–1 | Koepke | Round 4: Sickmann, Lisa - Koepke, Elena | Petrov's Defense: Classical Attack, Marshall Variation | |
| May 24, 2025 | Malinowsky | ½–½ | Sickmann | Round 3: Malinowsky, Celina - Sickmann, Lisa | Sicilian Defense: Four Knights Variation | |
| May 23, 2025 | Sickmann | 1–0 | Heutling | Round 19: Sickmann, Lisa - Heutling, Elina | Sicilian Defense: Najdorf Variation, Amsterdam Variation | |
| May 23, 2025 | Koldunov | 0–1 | Sickmann | Round 17: Koldunov, Elena - Sickmann, Lisa | Sicilian Defense: French Variation, Normal | |
| May 23, 2025 | Peglau | 1–0 | Sickmann | Round 9: Peglau, Charis - Sickmann, Lisa | Robatsch Defense | |
| May 22, 2025 | Sickmann | 0–1 | Wagner | Round 8: Sickmann, Lisa - Wagner, Dinara | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| May 21, 2025 | Schneider | 1–0 | Sickmann | Round 7: Schneider, Jana - Sickmann, Lisa | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | |
| May 20, 2025 | Sickmann | 0–1 | Schulze | Round 6: Sickmann, Lisa - Schulze, Lara | Ruy Lopez: Morphy Defense, Classical Defense Deferred | |
| May 19, 2025 | Heinemann | 1–0 | Sickmann | Round 5: Heinemann, Josefine - Sickmann, Lisa | Sicilian Defense: Four Knights Variation | |
| May 18, 2025 | Sickmann | 1–0 | Kostak | Round 4: Sickmann, Lisa - Kostak, Tetyana | Philidor Defense: Lion Variation, Shirov Gambit | |
| May 17, 2025 | Klek | 1–0 | Sickmann | Round 3: Klek, Hanna Marie - Sickmann, Lisa | Zukertort Opening | |
| May 16, 2025 | Sickmann | 0–1 | Dolzhykova | Round 2: Sickmann, Lisa - Dolzhykova, Kateryna | Caro-Kann Defense: Advance Variation, Tal Variation | |
| May 14, 2025 | Sickmann | ½–½ | Sieber | Round 1: Sickmann, Lisa - Sieber, Fiona | Ruy Lopez: Morphy Defense, Cozio Defense | |
| Apr 16, 2025 | Sickmann | 1–0 | Schaper | Runde 5: Sickmann, Lisa - Schaper, Jan Erik | Pirc Defense | |
| Apr 16, 2025 | Sickmann | 1–0 | Pfeiffer | Runde 3: Sickmann, Lisa - Pfeiffer, Juri | Caro-Kann Defense: Tartakower Variation | |
| Apr 16, 2025 | Wendt | 0–1 | Sickmann | Runde 2: Wendt, Felix - Sickmann, Lisa | Sicilian Defense: Delayed Alapin Variation, with e6 | |
| Apr 16, 2025 | Sickmann | 1–0 | Farouk | Runde 1: Sickmann, Lisa - Farouk, Isa Mohideen | Caro-Kann Defense: Exchange Variation | |
| Apr 14, 2025 | Sickmann | 0–1 | Manz | Runde 9: Sickmann, Lisa - Manz, Lukas | Sicilian Defense: Four Knights Variation | |
| Apr 14, 2025 | Janiak | 0–1 | Sickmann | Runde 8: Janiak, Eryk - Sickmann, Lisa | Sicilian Defense: French Variation | |
| Apr 14, 2025 | Stegert | 0–1 | Sickmann | Runde 7: Stegert, Jonas - Sickmann, Lisa | Catalan Opening: Open Defense | |
| Apr 14, 2025 | Sickmann | 1–0 | Sasse | Runde 6: Sickmann, Lisa - Sasse, Conan | Sicilian Defense: Richter-Rauzer Variation | |
| Apr 14, 2025 | Leib | ½–½ | Sickmann | Runde 4: Leib, Britta - Sickmann, Lisa | Sicilian Defense: Closed | |
| Mar 9, 2025 | Sickmann | 1–0 | Just | Round 9: Sickmann, Lisa - Just, Anita, Dr. | French Defense: Advance Variation, Milner-Barry Gambit, Hector Variation | |
| Mar 9, 2025 | Kuehn | 1–0 | Sickmann | Round 8: Kuehn, Viktoria - Sickmann, Lisa | Sicilian Defense: Snyder Variation | |
| Mar 8, 2025 | Sickmann | 0–1 | Ismayil | Round 7: Sickmann, Lisa - Ismayil, Malak | Ruy Lopez: Closed, Pilnik Variation | |
| Mar 8, 2025 | Trunz | 1–0 | Sickmann | Round 6: Trunz, Tamila - Sickmann, Lisa | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation | |
| Mar 6, 2025 | Sickmann | 0–1 | Neumann | Round 3: Sickmann, Lisa - Neumann, Helena | Caro-Kann Defense: Tartakower Variation | |
| Mar 6, 2025 | Kurapova | * | Sickmann | Round 2: Kurapova, Olga - Sickmann, Lisa | ? | |
| Mar 7, 2025 | Pellicoro | 0–1 | Sickmann | Round 5: Pellicoro, Nathalie - Sickmann, Lisa | Sicilian Defense: Four Knights Variation, Exchange Variation | |
| Mar 6, 2025 | Kurapova | 1–0 | Sickmann | Round 2: Kurapova, Olga - Sickmann, Lisa | Sicilian Defense: French Variation | |
| Mar 5, 2025 | Sickmann | * | Dolzhykova | Round 1: Sickmann, Lisa - Dolzhykova, Kateryna | Caro-Kann Defense: Tartakower Variation | |
| Nov 17, 2024 | Stangl | 0–1 | Sickmann | FB1 2425 FC Bayern München - Hamburger | Sicilian Defense: French Variation, Normal | |
| Nov 16, 2024 | Sickmann | ½–½ | Heinemann | FB1 2425 Hamburger SK - OSG Baden-Baden | Sicilian Defense: Najdorf Variation, Amsterdam Variation | |
| Oct 19, 2024 | Sickmann | ½–½ | Schuricht | Round 9: Sickmann, Lisa - Schuricht, Emil Frederick | Caro-Kann Defense: Karpov Variation | |
| Oct 18, 2024 | Menzel | 1–0 | Sickmann | Round 8: Menzel, Maximilian - Sickmann, Lisa | Indian Defense: Przepiorka Variation | |
| Oct 17, 2024 | Sickmann | 1–0 | Weidemann | Round 7: Sickmann, Lisa - Weidemann, Jakob | Sicilian Defense: Lasker-Pelikan Variation | |
| Oct 16, 2024 | Kummerow | 0–1 | Sickmann | Round 6: Kummerow, Heiko - Sickmann, Lisa | Ruy Lopez: Morphy Defense, Anderssen Variation | |
| Oct 15, 2024 | Sickmann | 1–0 | Rott | Round 5: Sickmann, Lisa - Rott, Georg | French Defense: Advance Variation, Euwe Variation | |
| Oct 14, 2024 | Winkler | ½–½ | Sickmann | Round 4: Winkler, Yonathan - Sickmann, Lisa | Sicilian Defense: Four Knights Variation, Cobra Variation | |
| Oct 12, 2024 | Sickmann | 0–1 | Junk | Round 1: Sickmann, Lisa - Junk, Phillip | Caro-Kann Defense: Tartakower Variation | |
| Oct 6, 2024 | Fischermann | 0–1 | Sickmann | Deutsche Ländermeisterschaft 2024 | Sicilian Defense: Closed | |
| Oct 5, 2024 | Sickmann | 1–0 | Hoffmann | Deutsche Ländermeisterschaft 2024 | Ruy Lopez: Closed, Bogoljubow Variation | |
| Oct 5, 2024 | Bursan | 0–1 | Sickmann | Deutsche Ländermeisterschaft 2024 | Vienna Gambit, with Max Lange Defense: Knight Variation | |
| Oct 4, 2024 | Sickmann | 1–0 | Stehning | Deutsche Ländermeisterschaft 2024 | Ruy Lopez: Open, Main Line | |
| Oct 4, 2024 | Vranckx | 0–1 | Sickmann | Deutsche Ländermeisterschaft 2024 | Sicilian Defense: French Variation | |
| Oct 3, 2024 | Sickmann | 1–0 | Wartenberg | Deutsche Ländermeisterschaft 2024 | Ruy Lopez: Morphy Defense, Anderssen Variation | |