| Mar 29, 2026 | Riemay | ½–½ | Tonndorf | Round 5: Riemay, David - Tonndorf, Matthias | Sicilian Defense: Hyperaccelerated Dragon | |
| Mar 27, 2026 | Kirchner | 0–1 | Riemay | Round 2: Kirchner, Markus - Riemay, David | Bird Opening: Dutch Variation | |
| Mar 26, 2026 | Kasueschke | 1–0 | Riemay | Round 4: Kasueschke, Lars - Riemay, David | King's Indian Defense: Fianchetto Variation, Panno Variation | |
| Mar 26, 2026 | Riemay | 1–0 | Buchinger | Round 3: Riemay, David - Buchinger, Alexis | Sicilian Defense: Dragon Variation, Yugoslav Attack, Panov Variation | |
| Jan 5, 2026 | von Estorff | 0–1 | Riemay | Runde 7: von Estorff, Jacob - Riemay, David | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Jan 4, 2026 | Riemay | 1–0 | Scheffner | Runde 6: Riemay, David - Scheffner, Jarno | Sicilian Defense: Najdorf Variation | |
| Jan 4, 2026 | Riemay | 1–0 | Sieber | Runde 5: Riemay, David - Sieber, Bert | Sicilian Defense: Kan Variation, Polugaevsky Variation | |
| Jan 3, 2026 | Bargsten | 1–0 | Riemay | Runde 4: Bargsten, Justus - Riemay, David | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Jan 3, 2026 | Riemay | 0–1 | Peters | Runde 3: Riemay, David - Peters, Tom | Sicilian Defense: Closed, Traditional | |
| Jan 2, 2026 | Hampel | 1–0 | Riemay | Runde 2: Hampel, Felix - Riemay, David | King's Indian Defense: Fianchetto Variation, Uhlmann-Szabo System | |
| Jan 2, 2026 | Riemay | 1–0 | Hoellman | Runde 1: Riemay, David - Hoellman, Ludger | Caro-Kann Defense: Maróczy Variation | |
| Dec 21, 2025 | Hourigan | 1–0 | Riemay | Round 5: Hourigan, Gerrit - Riemay, David | King's Indian Defense: Fianchetto Variation, Immediate Fianchetto | |
| Dec 20, 2025 | Degenhard | ½–½ | Riemay | Round 4: Degenhard, Simon - Riemay, David | Sicilian Defense: Kan Variation, Wing Attack | |
| Dec 12, 2025 | Riemay | ½–½ | Klaska | Round 3: Riemay, David - Klaska, Philipp Leon | Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation, Early Deviations | |
| Apr 21, 2025 | Riemay | 0–1 | Yurovskykh | Grenke Chess Open A | French Defense: Advance Variation, Wade Variation | |
| Apr 21, 2025 | Toktomushev | 0–1 | Riemay | Round 8: Toktomushev, Teimur - Riemay, David | Rat Defense: English Rat | |
| Apr 20, 2025 | Fishbein | 1–0 | Riemay | Round 6: Fishbein, Alexander - Riemay, David | Caro-Kann Defense: Endgame Offer | |
| Apr 19, 2025 | Riemay | ½–½ | Milov | Round 4: Riemay, David - Milov, Leonid | Sicilian Defense: Smith-Morra Gambit Accepted, Kan Formation | |
| Apr 19, 2025 | Kolb | ½–½ | Riemay | Round 5: Kolb, Tobias - Riemay, David | Dutch Defense: Leningrad Variation, Warsaw Variation | |
| Jan 5, 2025 | Riemay | ½–½ | Knuedel | Round 7: Riemay, David - Knuedel, Torben | Italian Game: Two Knights Defense, Polerio Defense, Bishop Check Line | |
| Jan 4, 2025 | Riemay | 1–0 | Bruns | Round 6: Riemay, David - Bruns, Kai-Christian | Sicilian Defense: Smith-Morra Gambit Accepted, Paulsen Formation | |
| Jan 4, 2025 | von Mettenheim | 1–0 | Riemay | Round 5: von Mettenheim, Johannes - Riemay, David | Queen's Pawn Game | |
| Jan 3, 2025 | Riemay | ½–½ | Plischki | Round 3: Riemay, David - Plischki, Sebastian | Sicilian Defense: Smith-Morra Gambit Accepted, Classical Formation | |
| Jan 3, 2025 | Meiwes | 0–1 | Riemay | Round 4: Meiwes, Thore - Riemay, David | Pirc Defense | |
| Jan 2, 2025 | Riemay | 1–0 | Schiller | Round 1: Riemay, David - Schiller, Jan-Hendrik | French Defense: Advance Variation, Euwe Variation | |
| Jan 2, 2025 | Abel | 1–0 | Riemay | Round 2: Abel, Dennes - Riemay, David | Zukertort Opening: Pirc Invitation | |
| Nov 22, 2024 | Schmidt | 0–1 | Riemay | Round 2: Schmidt, Markus - Riemay, David | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Nov 22, 2024 | Riemay | 1–0 | Heck | Round 1: Riemay, David - Heck, Norbert | Sicilian Defense: Smith-Morra Gambit Accepted, Paulsen Formation | |
| Nov 24, 2024 | Riemay | ½–½ | Johnen | Round 5: Riemay, David - Johnen, Daniel | Sicilian Defense: Alapin Variation, Smith-Morra Declined | |
| Nov 23, 2024 | Riemay | 1–0 | Kocak | Round 3: Riemay, David - Kocak, Ediz | Pirc Defense | |
| Nov 23, 2024 | Humburg | ½–½ | Riemay | Round 4: Humburg, Philipp - Riemay, David | Dutch Defense: Leningrad Variation, Warsaw Variation | |
| Nov 17, 2024 | Riemay | 0–1 | Bogdanov | Round 4: Riemay, David - Bogdanov, Egor | Sicilian Defense: Alapin Variation, Smith-Morra Declined | |
| Nov 17, 2024 | Lippert | 0–1 | Riemay | Round 5: Lippert, Daniel - Riemay, David | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Nov 16, 2024 | Riemay | 1–0 | Nguyen | Round 2: Riemay, David - Nguyen, Phuc Nhat | Italian Game: Classical Variation, Center Attack | |
| Nov 16, 2024 | Gersemann | 0–1 | Riemay | Round 3: Gersemann, Karl - Riemay, David | Caro-Kann Defense: Two Knights Attack | |
| Nov 15, 2024 | Wusterack | 0–1 | Riemay | Round 1: Wusterack, Paul - Riemay, David | Zukertort Opening: Pirc Invitation | |
| Jan 7, 2023 | Riemay | 1–0 | Reimer | Lower Saxony Championship | Masters | Sicilian Defense: Smith-Morra Gambit Accepted | |
| Jan 7, 2023 | Stelmaszyk | 1–0 | Riemay | Lower Saxony Championship | Masters | Pirc Defense: 150 Attack, Sveshnikov-Jansa Attack | |
| Jan 5, 2023 | Laubsch | 0–1 | Riemay | Lower Saxony Championship | Masters | Pirc Defense | |