| — | Goldbeck | 1–0 | Schimnatkowski | Grenke Open | Benoni Defense: Benoni-Indian Defense, Kingside Move Order | |
| Apr 6, 2026 | Schimnatkowski | 0–1 | Kamalidenova | Round 8: Schimnatkowski, Lukas - Kamalidenova, Meruert | ? | |
| Apr 5, 2026 | Muzychuk | 1–0 | Schimnatkowski | Round 7: Muzychuk, Mariya - Schimnatkowski, Lukas | ? | |
| Apr 5, 2026 | Schimnatkowski | 1–0 | Khotenashvili | Round 6: Schimnatkowski, Lukas - Khotenashvili, Bella | ? | |
| Apr 3, 2026 | Shukhman | 1–0 | Schimnatkowski | Round 3: Shukhman, Anna - Schimnatkowski, Lukas | ? | |
| Apr 3, 2026 | Dominguez Perez | 1–0 | Schimnatkowski | Round 1: Dominguez Perez, Leinier - Schimnatkowski, Lukas | ? | |
| Jul 25, 2025 | Donchenko | 1–0 | Schimnatkowski | CZECH OPEN 2025 - A - PARDUBICE OPEN - open grandmaster tournament, part of the ACP world series | English Opening: Symmetrical Variation, Three Knights Variation | |
| Jul 24, 2025 | Chen | 1–0 | Schimnatkowski | Biel Chess Festival 2025 MTO | Queen's Gambit Declined: Vienna Variation, Quiet Variation | |
| Jul 23, 2025 | Schimnatkowski | 1–0 | Gut | Biel Chess Festival 2025 MTO | Sicilian Defense: Dragon Variation, Fianchetto Variation | |
| Jul 22, 2025 | Hu | 0–1 | Schimnatkowski | Biel Chess Festival 2025 MTO | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Jul 21, 2025 | Schimnatkowski | 0–1 | Chen | Biel Chess Festival 2025 MTO | Sicilian Defense: French Variation | |
| Jul 19, 2025 | Panchanathan | 1–0 | Schimnatkowski | Biel Chess Festival 2025 MTO | English Opening: Symmetrical Variation, Mecking Variation | |
| Jul 18, 2025 | Schimnatkowski | 1–0 | Tahay | Biel Chess Festival 2025 MTO | Sicilian Defense: Najdorf Variation, Zagreb Variation | |
| Jul 17, 2025 | Latorre | ½–½ | Schimnatkowski | Biel Chess Festival 2025 MTO | Sicilian Defense: Dragon Variation | |
| Jul 16, 2025 | Schimnatkowski | 1–0 | Talwalkar | Biel Chess Festival 2025 MTO | Sicilian Defense: Closed, Traditional | |
| Jul 15, 2025 | Adewumi | 1–0 | Schimnatkowski | Biel Chess Festival 2025 MTO | King's Indian Defense: Semi-Averbakh System | |
| Jul 14, 2025 | Schimnatkowski | 1–0 | Jordan | Biel Chess Festival 2025 MTO | Caro-Kann Defense: Tartakower Variation | |
| Apr 21, 2025 | Bournel | 1–0 | Schimnatkowski | Freestyle Chess Open A | ? | |
| Apr 20, 2025 | Ruiz Buendia | ½–½ | Schimnatkowski | Freestyle Chess Open A | ? | |
| Apr 19, 2025 | Reuker | 1–0 | Schimnatkowski | Freestyle Chess Open A | ? | |
| Apr 18, 2025 | Postlmayer | 1–0 | Schimnatkowski | Round 3: Postlmayer, Jakob - Schimnatkowski, Lukas | Bogo-Indian Defense: Nimzowitsch Variation | |
| Jan 3, 2025 | Patel | * | Schimnatkowski | 98th Caplin Hastings Masters 2024 | ? | |
| Jan 2, 2025 | Schimnatkowski | 0–1 | Rida | 98th Caplin Hastings Masters 2024 | Four Knights Game: Spanish Variation, Double Spanish | |
| Jan 1, 2025 | Zhang | 0–1 | Schimnatkowski | 98th Caplin Hastings Masters 2024 | Sicilian Defense: Dragon Variation, Yugoslav Attack, Early Deviations | |
| Dec 31, 2024 | Schimnatkowski | 0–1 | Adams | 98th Caplin Hastings Masters 2024 | English Opening: Agincourt Defense, Tarrasch Defense | |
| Dec 31, 2024 | Kim | ½–½ | Schimnatkowski | 98th Caplin Hastings Masters 2024 | Sicilian Defense: Moscow Variation | |
| Dec 30, 2024 | Zhou | 1–0 | Schimnatkowski | 98th Caplin Hastings Masters 2024 | Italian Game: Giuoco Pianissimo, Normal | |
| Dec 29, 2024 | Schimnatkowski | 1–0 | Gorainow | 98th Caplin Hastings Masters 2024 | Sicilian Defense: Closed | |
| Dec 29, 2024 | Malinovskii | 0–1 | Schimnatkowski | 98th Caplin Hastings Masters 2024 | Bishop's Opening: Vienna Hybrid | |
| Dec 28, 2024 | Schimnatkowski | 0–1 | Laurent-Paoli | 98th Caplin Hastings Masters 2024 | Sicilian Defense: Grand Prix Attack | |
| Mar 31, 2024 | Schimnatkowski | * | Sidletskyi | new tournament description | ? | |
| Mar 31, 2024 | Ciolek | 0–1 | Schimnatkowski | Grenke Open | Nimzo-Indian Defense: Classical Variation | |
| Mar 30, 2024 | Bassini | 1–0 | Schimnatkowski | Grenke Open | Sicilian Defense: French Variation | |
| Feb 13, 2024 | Lukas Schimnatkowski | 1–0 | Pal Suranyi | Baden-Baden Faschingsopen 2024 | Sicilian Defense: Closed | |
| Feb 12, 2024 | Lukas Schimnatkowski | 0–1 | Keller | Baden-Baden Faschingsopen 2024 | Italian Game: Classical Variation, Greco Gambit | |
| Feb 12, 2024 | Gluma | ½–½ | Lukas Schimnatkowski | Baden-Baden Faschingsopen 2024 | French Defense: Tarrasch Variation, Chistyakov Defense | |
| Feb 12, 2024 | Michael Kuraszkiewicz | ½–½ | Lukas Schimnatkowski | Baden-Baden Faschingsopen 2024 | Catalan Opening: Open Defense, Classical Line | |
| Oct 7, 2023 | Lukas Schimnatkowski | 0–1 | Saba Kvantaliani | Runde 9: Lukas Schimnatkowski - Saba Kvantaliani | Sicilian Defense: Closed, Traditional | |
| Oct 6, 2023 | Martin Molinaroli | 0–1 | Lukas Schimnatkowski | Runde 8: Martin Molinaroli - Lukas Schimnatkowski | Nimzo-Larsen Attack: English Variation | |
| Oct 4, 2023 | Lukas Schimnatkowski | ½–½ | Christian Gluma | Runde 6: Lukas Schimnatkowski - Christian Gluma | Modern Defense | |
| Oct 3, 2023 | Dennis Martin | ½–½ | Lukas Schimnatkowski | Runde 5: Dennis Martin - Lukas Schimnatkowski | Catalan Opening: Open Defense, Classical Line | |
| Oct 2, 2023 | Lukas Schimnatkowski | 1–0 | Luka Xue | Runde 4: Lukas Schimnatkowski - Luka Xue | French Defense: Tarrasch Variation, Chistyakov Defense | |
| Sep 30, 2023 | Kesaria Mgeladze | 1–0 | Lukas Schimnatkowski | Runde 1: Kesaria Mgeladze - Lukas Schimnatkowski | Sicilian Defense: Dragon Variation, Yugoslav Attack, Early Deviations | |
| Jun 24, 2023 | Ori Kobo | 1–0 | Lukas Schimnatkowski | Round 1: Ori Kobo - Lukas Schimnatkowski | Sicilian Defense: Chekhover Variation | |