| Jun 10, 2026 | Frick | ½–½ | Stoychev | Round 9: Frick, Renato - Stoychev, Ognian | Ruy Lopez: Open, Italian Variation | |
| Jun 9, 2026 | Stoychev | 0–1 | Rooze | Round 8: Stoychev, Ognian - Rooze, Jan | Queen's Gambit Declined: Ragozin Defense, Alekhine Variation | |
| Jun 8, 2026 | Kierzek | ½–½ | Stoychev | Round 7: Kierzek, Matthias, Dr. - Stoychev, Ognian | Slav Defense: Steiner Variation | |
| Jun 7, 2026 | Stoychev | 0–1 | Huss | Round 6: Stoychev, Ognian - Huss, Andreas | Queen's Indian Defense: Fianchetto Variation | |
| Jun 6, 2026 | Salvetti | 0–1 | Stoychev | Round 5: Salvetti, Manlio Alec - Stoychev, Ognian | Italian Game: Giuoco Pianissimo, Italian Four Knights Variation | |
| Jun 5, 2026 | Vifian | 0–1 | Stoychev | Round 4: Vifian, Heinz - Stoychev, Ognian | London System | |
| Jun 4, 2026 | Stoychev | ½–½ | Blasco | Round 3: Stoychev, Ognian - Blasco, Domenico | Benko Gambit Accepted: Pawn Return Variation | |
| Jun 3, 2026 | Welling | 1–0 | Stoychev | Round 2: Welling, Gerard - Stoychev, Ognian | Yusupov-Rubinstein System | |
| Jun 2, 2026 | Stoychev | 1–0 | Morrish | Round 1: Stoychev, Ognian - Morrish, John | Slav Indian | |
| Mar 15, 2026 | Metiner | * | Stoychev | Round 7: Metiner, Yekta Efe - Stoychev, Ognian | Vienna Game: Mieses Variation | |
| Mar 15, 2026 | Stoychev | 1–0 | Borisov | Round 6: Stoychev, Ognian - Borisov, Petar | Queen's Gambit Declined | |
| Mar 14, 2026 | Boev | 1–0 | Stoychev | Round 4: Boev, Viktor - Stoychev, Ognian | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Mar 14, 2026 | Stoychev | 0–1 | Velkov | Round 5: Stoychev, Ognian - Velkov, Ilija | Slav Defense: Modern Line | |
| Mar 14, 2026 | Stoychev | 1–0 | Vranyashki | Round 3: Stoychev, Ognian - Vranyashki, Viktor | Slav Defense: Modern Line | |
| Mar 13, 2026 | Velikova | 0–1 | Stoychev | Momchilgrad Classics 2026 | London System | |
| Mar 13, 2026 | Stoychev | 1–0 | Karatas | Momchilgrad Classics 2026 | Modern Defense: Standard Defense | |
| Nov 30, 2025 | Plenca | 1–0 | Stoychev | Round 1: Plenca, Jadranko - Stoychev, Ognian | Four Knights Game | |
| Nov 23, 2025 | Naymanova | 0–1 | Stoychev | Asenovgrad 2025 | Hungarian Opening | |
| Nov 23, 2025 | Stoychev | ½–½ | Georgiev | Asenovgrad 2025 | Queen's Pawn Game: Modern Defense | |
| Nov 23, 2025 | Tilicheev | 1–0 | Stoychev | Asenovgrad 2025 | Catalan Opening | |
| Nov 22, 2025 | Stoychev | 1–0 | Marzakov | Asenovgrad 2025 | Queen's Gambit Declined | |
| Nov 22, 2025 | Todev | ½–½ | Stoychev | Asenovgrad 2025 | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Nov 22, 2025 | Stoychev | 1–0 | Georgiev | Asenovgrad 2025 | Queen's Indian Defense: Fianchetto Variation, Check Variation, Intermezzo Line | |
| Nov 22, 2025 | Delchev | 1–0 | Stoychev | Asenovgrad 2025 | Indian Defense: London System | |
| Nov 21, 2025 | Hadzhaismail | 0–1 | Stoychev | Asenovgrad 2025 | Four Knights Game | |
| Nov 21, 2025 | Brankov | 1–0 | Stoychev | Asenovgrad 2025 | Bogo-Indian Defense: Grünfeld Variation | |
| Nov 21, 2025 | Brankov | * | Stoychev | Asenovgrad Rapid 2025 | ? | |
| Nov 1, 2025 | Stoychev | 1–0 | Taylor | Round 11: Stoychev, Ognian - Taylor, Timothy | Queen's Gambit Declined: Albin Countergambit, Normal Line | |
| Oct 31, 2025 | Stoychev | ½–½ | Miltner | Round 10: Stoychev, Ognian - Miltner, Arndt | Queen's Gambit Declined | |
| Oct 30, 2025 | Large | 1–0 | Stoychev | Round 9: Large, Peter G - Stoychev, Ognian | Ruy Lopez: Exchange Variation, Gligoric Variation | |
| Oct 29, 2025 | Stoychev | 1–0 | Hartung-Nielsen | Round 8: Stoychev, Ognian - Hartung-Nielsen, Jens | Tarrasch Defense: Dubov Tarrasch | |
| Oct 28, 2025 | Taksrud | 0–1 | Stoychev | Round 7: Taksrud, Vidar - Stoychev, Ognian | Grünfeld Defense: Exchange Variation | |
| Oct 26, 2025 | Stoychev | 0–1 | Bergstrom | Round 6: Stoychev, Ognian - Bergstrom, Rolf | Indian Defense: Wade-Tartakower Defense | |
| Oct 25, 2025 | Patrucco | 0–1 | Stoychev | Round 5: Patrucco, Carlo - Stoychev, Ognian | Italian Game: Classical Variation, Giuoco Pianissimo, with a6 | |
| Oct 24, 2025 | Stoychev | ½–½ | Pigott | Round 4: Stoychev, Ognian - Pigott, John C | Bogo-Indian Defense: Retreat Variation | |
| Oct 23, 2025 | Pomes Marcet | 1–0 | Stoychev | Round 3: Pomes Marcet, Joan - Stoychev, Ognian | Nimzo-Indian Defense: Sämisch Variation | |
| Oct 22, 2025 | Stoychev | ½–½ | Boulard | Round 2: Stoychev, Ognian - Boulard, Eric | Old Indian Defense: Normal Variation | |
| Sep 27, 2025 | Pigott | ½–½ | Stoychev | European individual senior chess championship 2025 - Open 65+, Rabac, Croatia | Bird Opening: Dutch Variation | |
| Jun 26, 2025 | Karaca | 1–0 | Stoychev | Round 5: Karaca, Yigit - Stoychev, Ognian | Ruy Lopez: Morphy Defense, Tarrasch Variation | |
| Jun 24, 2025 | Stoychev | 0–1 | Pereverzev | Round 2: Stoychev, Ognian - Pereverzev, Timofei | King's Indian Defense: Petrosian Variation, Stein Defense | |
| Mar 1, 2025 | Stoychev | 0–1 | Makris | Round 4: Stoychev, Ognian - Makris, Spyridon-Dionysios | Queen's Gambit Declined: Ragozin Defense, Alekhine Variation | |
| Mar 1, 2025 | Pehlivanova | 0–1 | Stoychev | Round 3: Pehlivanova, Aleksandra - Stoychev, Ognian | Queen's Pawn Game: Accelerated London System, Steinitz Countergambit | |
| Feb 28, 2025 | Stoychev | ½–½ | Eftovska | Round 2: Stoychev, Ognian - Eftovska, Lea | King's Indian Defense: Petrosian Variation, Stein Defense | |
| Oct 31, 2024 | Chevelevitch | 1–0 | Stoychev | Round 7: Chevelevitch, Evgueni, Dr. - Stoychev, Ognian | Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation | |
| Oct 26, 2024 | Stoychev | 0–1 | Roos | Round 2: Stoychev, Ognian - Roos, Louis | King's Indian Defense: Orthodox Variation | |
| Mar 31, 2024 | Ivanovic | 1–0 | Stoychev | Battle for Caribrod 2024 | Bogo-Indian Defense: Nimzowitsch Variation | |
| Jul 30, 2024 | Stoychev | 0–1 | Makridis | Round 3: Stoychev, Ognian - Makridis, Dimitrios | Queen's Gambit Declined: Three Knights Variation | |
| Dec 14, 2023 | Stoychev | 0–1 | Petrov | European Rapid Championship | Slav Indian | |
| Oct 29, 2022 | Naguleswaran | 0–1 | Stoychev | World Amateur CC U2000 | Ruy Lopez: Closed, Bogoljubow Variation | |
| Oct 28, 2022 | Stoychev | 0–1 | Sodbilegt | World Amateur CC U2000 | Indian Defense: Anti-Nimzo-Indian | |
| Oct 27, 2022 | Oelmann | 0–1 | Stoychev | World Amateur CC U2000 | Grünfeld Defense: Exchange Variation, Modern Exchange Variation | |
| Oct 26, 2022 | Stoychev | ½–½ | Cuesta | World Amateur CC U2000 | Catalan Opening: Closed | |
| Oct 25, 2022 | Rudecki | 0–1 | Stoychev | World Amateur CC U2000 | Scotch Game: Mieses Variation | |
| Oct 22, 2022 | Stoychev | * | Zielinski | World Amateur CC U2000 | ? | |