| Jun 21, 2026 | Kueppers | 0–1 | Stork | Round 9: Kueppers, Timo - Stork, Oliver | King's Indian Attack | |
| Jun 21, 2026 | Hesse | 0–1 | Kueppers | Round 8: Hesse, Henrik - Kueppers, Timo | Sicilian Defense: Accelerated Dragon, Maróczy Bind, Gurgenidze Variation | |
| Jun 21, 2026 | Kueppers | 1–0 | Beyer | Round 7: Kueppers, Timo - Beyer, Lorenz | King's Indian Attack, with e6 | |
| Jun 21, 2026 | Kueppers | 1–0 | Bredemeier | Round 6: Kueppers, Timo - Bredemeier, Dirk | Zukertort Opening: Sicilian Invitation | |
| Jun 20, 2026 | Schenderowitsch | 1–0 | Kueppers | Round 5: Schenderowitsch, Michael - Kueppers, Timo | English Opening: Symmetrical Variation | |
| Jun 20, 2026 | Kueppers | 0–1 | Peng | Round 4: Kueppers, Timo - Peng, Xiang-Tobias | King's Indian Attack: French Variation | |
| Jun 20, 2026 | Langrock | 0–1 | Kueppers | Round 3: Langrock, Hannes - Kueppers, Timo | English Opening: Symmetrical Variation | |
| Jun 20, 2026 | Kueppers | 1–0 | Hundack | Round 2: Kueppers, Timo - Hundack, Rolf | Zukertort Opening: Nimzo-Larsen Variation | |
| Jun 20, 2026 | Heider | 1–0 | Kueppers | Round 1: Heider, Martin - Kueppers, Timo | Zukertort Opening: Sicilian Invitation | |
| Apr 6, 2026 | Kueppers | ½–½ | Colbow | Grenke Chess Festival 2026 Open | English Opening: Agincourt Defense | |
| Apr 3, 2026 | Kueppers | 0–1 | Xiao | Grenke Chess Festival 2026 Open | English Opening: Anglo-Indian Defense | |
| Dec 30, 2025 | Willow | 1–0 | Kueppers | Round 4: Willow, Jonah B - Kueppers, Timo | Sicilian Defense: Delayed Alapin Variation, with e6 | |
| Dec 28, 2025 | Dotzer | 1–0 | Kueppers | Round 2: Dotzer, Lukas - Kueppers, Timo | Sicilian Defense: Closed, Anti-Sveshnikov Variation, with d6 | |
| Nov 16, 2025 | Kueppers | 0–1 | Petrovskiy | Round 10: Kueppers, Timo - Petrovskiy, Vadym | King's Indian Attack | |
| Nov 16, 2025 | Koellner | 0–1 | Kueppers | Round 9: Koellner, Ruben Gideon - Kueppers, Timo | East Indian Defense | |
| Nov 16, 2025 | Mons | 1–0 | Kueppers | Round 11: Mons, Leon - Kueppers, Timo | Bird Opening: Sturm Gambit | |
| Nov 16, 2025 | Kueppers | 0–1 | Dardha | Round 10: Kueppers, Timo - Dardha, Daniel | Sicilian Defense | |
| Nov 16, 2025 | Kueppers | ½–½ | Gschnitzer | Round 9: Kueppers, Timo - Gschnitzer, Adrian | Nimzo-Larsen Attack: Symmetrical Variation | |
| Nov 15, 2025 | Vardanyan | 1–0 | Kueppers | Round 7: Vardanyan, Aras - Kueppers, Timo | English Opening: Symmetrical Variation, Botvinnik System Reversed, with Nf3 | |
| Nov 15, 2025 | Pultinevicius | 1–0 | Kueppers | Round 5: Pultinevicius, Paulius - Kueppers, Timo | Benoni Defense: Czech Benoni Defense | |
| Nov 15, 2025 | Finek | ½–½ | Kueppers | Round 4: Finek, Vaclav - Kueppers, Timo | English Opening: Symmetrical Variation, Botvinnik System Reversed, with Nf3 | |
| Nov 15, 2025 | Kueppers | 1–0 | Wachinger | 3. Berlin U25-Open Rapid | Zukertort Opening | |
| Nov 15, 2025 | Gholami Orimi | 1–0 | Kueppers | Round 8: Gholami Orimi, Mahdi - Kueppers, Timo | Bird Opening: Myers Defense | |
| Nov 15, 2025 | Kueppers | 1–0 | Peyrer | Round 7: Kueppers, Timo - Peyrer, Konstantin | Nimzo-Larsen Attack | |
| Nov 15, 2025 | Fromm | 0–1 | Kueppers | Round 6: Fromm, Marius - Kueppers, Timo | Nimzo-Larsen Attack: Indian Variation | |
| Nov 15, 2025 | Kueppers | 1–0 | Boettcher | Round 5: Kueppers, Timo - Boettcher, Patrick | Kádas Opening | |
| Nov 15, 2025 | Kueppers | 1–0 | Wachinger | 3. Berlin U25-Open Rapid | Zukertort Opening | |
| Nov 14, 2025 | Kueppers | 1–0 | Lymar | Round 13 & Semifinals Armageddon: Kueppers, Timo - Lymar, Vladislav | Zukertort Opening: Reversed Grünfeld | |
| Nov 14, 2025 | Poltorak | 1–0 | Kueppers | Round 12 & Semifinals: Poltorak, Sebastian - Kueppers, Timo | Sicilian Defense: Closed | |
| Nov 14, 2025 | Kueppers | 1–0 | Stein | Round 11 & Quarterfinals Armageddon: Kueppers, Timo - Stein, Robert | King's Indian Attack | |
| Nov 14, 2025 | Henning | 0–1 | Kueppers | Round 10 & Quarterfinals: Henning, Marvin - Kueppers, Timo | Sicilian Defense: Delayed Alapin Variation, with d6 | |
| Nov 14, 2025 | Kueppers | 0–1 | Kotyk | Round 7: Kueppers, Timo - Kotyk, Michael | Zukertort Opening: Dutch Variation | |
| Nov 14, 2025 | Finek | 1–0 | Kueppers | Round 6: Finek, Vaclav - Kueppers, Timo | Benoni Defense: Czech Benoni Defense | |
| Nov 14, 2025 | Kueppers | ½–½ | Buckels | Round 5: Kueppers, Timo - Buckels, Valentin | King's Indian Attack | |
| Nov 14, 2025 | Moeller | 0–1 | Kueppers | Round 4: Moeller, Maurin - Kueppers, Timo | Sicilian Defense: Dragon Variation, Yugoslav Attack, Early Deviations | |
| Nov 9, 2025 | Chanda | 1–0 | Kueppers | Round 9: Chanda, Sandipan - Kueppers, Timo | Indian Defense | |
| Nov 8, 2025 | Kueppers | 1–0 | Kyparissopoulos | Round 8: Kueppers, Timo - Kyparissopoulos, Spyridon | Catalan Opening: Closed | |
| Nov 6, 2025 | Tscharotschkin | ½–½ | Kueppers | Round 6: Tscharotschkin, Michael - Kueppers, Timo | Indian Defense | |
| Nov 5, 2025 | Kueppers | ½–½ | Cordes | Round 5: Kueppers, Timo - Cordes, Hans-Joerg, Dr. | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Nov 3, 2025 | Kueppers | 0–1 | Hardaway | Round 3: Kueppers, Timo - Hardaway, Brewington | English Opening: Agincourt Defense | |
| Nov 2, 2025 | Salsa | 0–1 | Kueppers | Round 2: Salsa, Nicola - Kueppers, Timo | English Opening: Symmetrical Variation, Rubinstein Variation | |
| Jul 27, 2025 | Kueppers | 0–1 | Zanan | CZECH OPEN 2025 - A - PARDUBICE OPEN - open grandmaster tournament | English Opening: King's English Variation, Hungarian Attack | |
| Jul 24, 2025 | Kueppers | 1–0 | Georgescu | Biel Chess Festival 2025 MTO | Scotch Game: Malaniuk Variation | |
| Jul 23, 2025 | Kueppers | ½–½ | Shvedova | Biel Chess Festival 2025 MTO | English Opening: King's English Variation, Four Knights Variation, Fianchetto Line, with Nb6 | |
| Jul 22, 2025 | Baenziger | 1–0 | Kueppers | Biel Chess Festival 2025 MTO | King's Indian Attack | |
| Jul 21, 2025 | Kueppers | 0–1 | Karthik Venkataraman | Biel Chess Festival 2025 MTO | Sicilian Defense: Staunton-Cochrane Variation | |
| Jul 19, 2025 | Sushanth Kamabathula | 0–1 | Kueppers | Biel Chess Festival 2025 MTO | Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation | |
| Jul 18, 2025 | Kueppers | 1–0 | Aditya Varun Gampa | Biel Chess Festival 2025 MTO | King's Indian Attack | |
| Jul 17, 2025 | Yilmaz | 1–0 | Kueppers | Biel Chess Festival 2025 MTO | Bogo-Indian Defense: Grünfeld Variation | |
| Jul 16, 2025 | Kueppers | 1–0 | Doraszelski | Biel Chess Festival 2025 MTO | Queen's Gambit Declined | |
| Jul 15, 2025 | Kueppers | ½–½ | Schnell | Biel Chess Festival 2025 MTO | English Opening: King's English Variation, Four Knights Variation, Fianchetto Line | |
| Jul 14, 2025 | Stefan | 0–1 | Kueppers | Biel Chess Festival 2025 MTO | King's Indian Defense: Normal Variation, King's Knight Variation | |
| Jun 8, 2025 | Kienitz | 1–0 | Kueppers | Round 5: Kienitz, Andre - Kueppers, Timo | Sicilian Defense: Moscow Variation, Main Line | |
| Jun 8, 2025 | Kueppers | ½–½ | Barzen | Round 4: Kueppers, Timo - Barzen, Pascal | English Opening: Symmetrical Variation | |
| Jun 7, 2025 | De Jong | 0–1 | Kueppers | Round 3: De Jong, Lode - Kueppers, Timo | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation, Gufeld Gambit | |
| Apr 20, 2025 | Kueppers | 0–1 | Schoppen | Freestyle Chess Open A | ? | |
| Apr 20, 2025 | Sonis | 1–0 | Kueppers | Freestyle Chess Open A | ? | |
| Apr 19, 2025 | Kueppers | 0–1 | Svane | Freestyle Chess Open A | ? | |
| Apr 19, 2025 | Wagner | 0–1 | Kueppers | Freestyle Chess Open A | ? | |
| Apr 18, 2025 | Kueppers | ½–½ | Fridman | Round 2: Kueppers, Timo - Fridman, Daniel | ? | |
| Apr 18, 2025 | Bogner | 0–1 | Kueppers | Round 3: Bogner, Sebastian - Kueppers, Timo | ? | |
| Aug 14, 2024 | Kueppers | 0–1 | Romanov | Round 5: Kueppers, Timo - Romanov, Evgeny | English Opening | |
| Aug 12, 2024 | Kueppers | 0–1 | Sasikiran | Round 3: Kueppers, Timo - Sasikiran, Krishnan | English Opening: King's English Variation | |
| Jan 6, 2023 | Kueppers | 1–0 | Chan | Caplin Hastings Masters 2022 | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| Jan 5, 2023 | Walker | 0–1 | Kueppers | Caplin Hastings Masters 2022 | ? | |
| Jan 4, 2023 | Kueppers | 0–1 | Grieve | Caplin Hastings Masters 2022 | Queen's Pawn Game: Zukertort Variation | |
| Jan 3, 2023 | Hryshchenko | 0–1 | Kueppers | Caplin Hastings Masters | Sicilian Defense: Old Sicilian | |
| Jan 2, 2023 | Kueppers | 1–0 | Brown | Caplin Hastings Masters 2022 | Caro-Kann Defense: Tartakower Variation | |
| Jan 1, 2023 | Wilks | ½–½ | Kueppers | Caplin Hastings Masters 2022 | Sicilian Defense: Chekhover Variation | |
| Dec 31, 2022 | Kueppers | ½–½ | Golding | Caplin Hastings Masters 2022 | Catalan Opening: Closed Variation, Traditional Variation | |
| Dec 30, 2022 | Hng | 0–1 | Kueppers | Caplin Hastings Masters 2022 | Réti Opening: Advance Variation | |
| Dec 29, 2022 | Kueppers | 0–1 | Thompson | Caplin Hastings Masters 2022 | French Defense: Tarrasch Variation, Morozevich Variation | |
| Dec 28, 2022 | Barton | 0–1 | Kueppers | Caplin Hastings Masters 2022 | Indian Defense: Przepiorka Variation | |
| Aug 5, 2022 | Kueppers | 0–1 | Bystrickiy | Letni Praha 2022 | English Opening: Symmetrical Variation, Rubinstein Variation | |
| — | Kueppers | 1–0 | Cukrowski | CZECH OPEN 2025 - A - PARDUBICE OPEN - open grandmaster tournament | English Opening: King's English Variation | |
| — | Stalmach | 0–1 | Kueppers | CZECH OPEN 2025 - A - PARDUBICE OPEN - open grandmaster tournament | Bogo-Indian Defense: Grünfeld Variation | |