| Apr 29, 2026 | Zwirs | 1–0 | Delchev | Semifinals: Zwirs, Nico - Delchev, Aleksander | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Apr 27, 2026 | Delchev | ½–½ | Ivanisevic | Round 6: Delchev, Aleksander - Ivanisevic, Ivan | Queen's Gambit Declined: Exchange Variation | |
| Apr 26, 2026 | Delchev | ½–½ | Peyrer | Round 15: Delchev, Aleksander - Peyrer, Konstantin | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Apr 25, 2026 | Sawatzki | ½–½ | Delchev | Round 14: Sawatzki, Frank - Delchev, Aleksander | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Apr 24, 2026 | Johansson | ½–½ | Delchev | BL 2526 FC Bayern München - SV Deggendorf | Queen's Gambit Accepted: Janowski-Larsen Variation | |
| Apr 9, 2026 | Lacanrus | ½–½ | Delchev | Round 9: Lacanrus, David - Delchev, Aleksander | Four Knights Game: Spanish Variation | |
| Apr 7, 2026 | Macon | ½–½ | Delchev | Round 7: Macon, Arthur - Delchev, Aleksander | Catalan Opening: Open Defense | |
| Apr 7, 2026 | Delchev | 1–0 | Ernst | Round 6: Delchev, Aleksander - Ernst, Luca | Sicilian Defense: Delayed Alapin Variation, with e6 | |
| Apr 6, 2026 | Delchev | ½–½ | Flear | Round 5: Delchev, Aleksander - Flear, Glenn C | Zukertort Opening | |
| Apr 5, 2026 | Andrey Terekhov | ½–½ | Delchev | Round 4: Andrey Terekhov - Delchev, Aleksander | Queen's Gambit Accepted: Classical Defense, Main Line | |
| Apr 5, 2026 | Delchev | ½–½ | Pigeat | Round 3: Delchev, Aleksander - Pigeat, Alexandre | Queen's Pawn Game: Zukertort Variation | |
| Apr 4, 2026 | Georgescu | ½–½ | Delchev | Round 2: Georgescu, Lena - Delchev, Aleksander | Ruy Lopez: Morphy Defense, Fianchetto Defense Deferred | |
| Apr 3, 2026 | Delchev | 1–0 | El Zein | Round 1: Delchev, Aleksander - El Zein, Zayne-Eddine | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Apr 2, 2026 | Delchev | ½–½ | Bergez | Round 8: Delchev, Aleksander - Bergez, Luc | Caro-Kann Defense: Exchange Variation, Rubinstein Variation | |
| Mar 22, 2026 | Amin | 1–0 | Delchev | Schachbundesliga Saison 2025/2026 | King's Indian Attack: Symmetrical Defense | |
| Mar 21, 2026 | Delchev | ½–½ | Baklan | Schachbundesliga Saison 2025/2026 | French Defense: Classical Variation, Shirov-Anand Variation | |
| Mar 1, 2026 | Delchev | 1–0 | Boensch | SBL München | Sicilian Defense: Taimanov Variation | |
| Feb 28, 2026 | Schmidek | 1–0 | Delchev | SBL München | Nimzo-Indian Defense: St. Petersburg Variation | |
| Feb 8, 2026 | Delchev | ½–½ | Van den Doel | Bundesliga - Kirchweyhe | Semi-Slav Defense: Normal Variation | |
| Feb 7, 2026 | Van Foreest | 1–0 | Delchev | Bundesliga - Kirchweyhe | Queen's Pawn Game: London System | |
| Jan 11, 2026 | Baidetskyi | ½–½ | Delchev | SBL Deggendorf | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Jan 10, 2026 | Delchev | ½–½ | Graf | SBL Deggendorf | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Dec 7, 2025 | Winterberg | ½–½ | Delchev | Bundesliga 25/26 | Semi-Slav Defense: Chigorin Defense | |
| Dec 6, 2025 | Delchev | ½–½ | Hagner | Bundesliga 25/26 | Indian Defense: Anti-Nimzo-Indian | |
| Oct 26, 2025 | Delchev | ½–½ | Tilicheev | Round 11: Delchev, Aleksander - Tilicheev, Viacheslav | French Defense: Advance Variation, Nimzowitsch System | |
| Oct 26, 2025 | Dimitrov | 1–0 | Delchev | Round 10: Dimitrov, Radoslav - Delchev, Aleksander | Slav Defense: Soultanbeieff Variation | |
| Oct 26, 2025 | Delchev | 1–0 | Kilic | Round 9: Delchev, Aleksander - Kilic, Eray | Sicilian Defense: Moscow Variation | |
| Oct 26, 2025 | Ozen | ½–½ | Delchev | Round 8: Ozen, Deniz - Delchev, Aleksander | Four Knights Game | |
| Oct 26, 2025 | Delchev | 1–0 | Stoyanov | Round 7: Delchev, Aleksander - Stoyanov, Stoyan Or | Sicilian Defense: Moscow Variation | |
| Oct 25, 2025 | Nikolov | ½–½ | Delchev | Round 6: Nikolov, Sasho - Delchev, Aleksander | Kangaroo Defense | |
| Oct 25, 2025 | Delchev | 1–0 | Ivanov | Round 5: Delchev, Aleksander - Ivanov, Svetlen | Sicilian Defense: Delayed Alapin Variation, with e6 | |
| Oct 25, 2025 | Kamperidis | 0–1 | Delchev | Round 4: Kamperidis, Charalampos - Delchev, Aleksander | Sicilian Defense: O'Kelly Variation, Normal System | |
| Oct 25, 2025 | Delchev | 0–1 | Markidis | Round 3: Delchev, Aleksander - Markidis, Konstantinos | Zukertort Opening | |
| Oct 25, 2025 | Delchev | 1–0 | Velchev | Round 1: Delchev, Aleksander - Velchev, Yoan | Sicilian Defense: Moscow Variation, Main Line | |
| Oct 25, 2025 | Shvenk | 0–1 | Delchev | Round 2: Shvenk, Denis - Delchev, Aleksander | Sicilian Defense: Kan Variation, Wing Attack, Fianchetto Variation | |
| Oct 12, 2025 | Burovic | ½–½ | Delchev | Round 11: Burovic, Rijad - Delchev, Aleksander | Four Knights Game: Scotch Variation Accepted | |
| Oct 10, 2025 | Nikolov | ½–½ | Delchev | Round 9: Nikolov, Momchil - Delchev, Aleksander | Queen's Gambit Accepted: Furman Variation | |
| Oct 9, 2025 | Delchev | ½–½ | Citak | Round 8: Delchev, Aleksander - Citak, Selim | Petrov's Defense: Modern Attack | |
| Oct 8, 2025 | Yurtseven | ½–½ | Delchev | Round 7: Yurtseven, Melih - Delchev, Aleksander | Four Knights Game | |
| Oct 8, 2025 | Delchev | ½–½ | Danilovic | Round 6: Delchev, Aleksander - Danilovic, Aleksandar | Dutch Defense: Hopton Attack | |
| Oct 7, 2025 | Moiseenko | ½–½ | Delchev | Round 5: Moiseenko, Alexander - Delchev, Aleksander | English Opening: Symmetrical Variation, Anti-Benoni Variation, Geller Variation | |
| Oct 6, 2025 | Delchev | ½–½ | Kuzubov | Round 4: Delchev, Aleksander - Kuzubov, Yuriy | Zukertort Opening | |
| Oct 5, 2025 | Erten | 0–1 | Delchev | Round 2: Erten, Kerem - Delchev, Aleksander | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Oct 4, 2025 | Delchev | 1–0 | Nikolov | Round 1: Delchev, Aleksander - Nikolov, Sasho | Queen's Pawn Game: London System, with e6 | |
| Oct 1, 2025 | Delchev | ½–½ | Kilic | Round 10: Delchev, Aleksander - Kilic, Eray | Queen's Pawn Game: Symmetrical Variation | |
| Oct 1, 2025 | Delchev | ½–½ | Dizdarevic | Round 3: Delchev, Aleksander - Dizdarevic, Emir | English Opening: Caro-Kann Defensive System | |
| Sep 28, 2025 | Delchev | 1–0 | Smeets | SBL | Sicilian Defense: Moscow Variation | |
| Sep 27, 2025 | Orlov | ½–½ | Delchev | SBL | Scotch Game: Classical Variation, Intermezzo Variation | |
| Jul 25, 2025 | Delchev | ½–½ | Barak | Round 8: Delchev, Aleksander - Barak, Gil | Scotch Game | |
| Jul 24, 2025 | Danielyan | 1–0 | Delchev | Round 7: Danielyan, Vahe - Delchev, Aleksander | Queen's Gambit Declined: Barmen Variation | |
| Jul 23, 2025 | Delchev | 1–0 | Antonioudakis | Round 6: Delchev, Aleksander - Antonioudakis, Georgios | Sicilian Defense: Moscow Variation | |
| Jul 22, 2025 | Argiroudis | ½–½ | Delchev | Round 5: Argiroudis, Stamatis - Delchev, Aleksander | Queen's Pawn Game: Symmetrical Variation | |
| Jul 21, 2025 | Delchev | ½–½ | Stanford | Round 4: Delchev, Aleksander - Stanford, Maxim Barth | Blumenfeld Countergambit Accepted | |
| Jul 20, 2025 | Vassis | 0–1 | Delchev | Round 3: Vassis, Anastasios - Delchev, Aleksander | English Opening: King's English Variation, Four Knights Variation, Fianchetto Line | |
| Jul 20, 2025 | Delchev | ½–½ | Georgakopoulos | Round 2: Delchev, Aleksander - Georgakopoulos, Nikolaos K. | Queen's Pawn Game: Symmetrical Variation | |
| Jul 19, 2025 | Kollias | 0–1 | Delchev | Round 1: Kollias, Ioannis K. - Delchev, Aleksander | Sicilian Defense: Kan Variation, Wing Attack | |
| May 7, 2025 | Delchev | ½–½ | Simonyi | Round 4: Delchev, Aleksander - Simonyi, Zoltan | French Defense: Tarrasch Variation, Open System | |
| May 7, 2025 | Pajcin | 1–0 | Delchev | Round 3: Pajcin, Lav - Delchev, Aleksander | Nimzo-Indian Defense: Normal Variation | |
| May 6, 2025 | Delchev | ½–½ | Mijatovic | Round 2: Delchev, Aleksander - Mijatovic, Dusan | English Opening: Anglo-Indian Defense, King's Knight Variation | |
| May 5, 2025 | Dumbelovic | ½–½ | Delchev | Round 1: Dumbelovic, Novak - Delchev, Aleksander | Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation | |
| Apr 27, 2025 | Delchev | 1–0 | Sawatzki | Schachbundesliga | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | |
| Apr 26, 2025 | Grigorian | ½–½ | Delchev | Schachbundesliga | Nimzo-Indian Defense: Classical Variation, Noa Variation | |
| Apr 25, 2025 | Bischoff | ½–½ | Delchev | Schachbundesliga | English Opening: King's English Variation | |
| Mar 23, 2025 | Lampert | ½–½ | Delchev | 1. BL HSK | Slav Defense: Exchange Variation | |
| Feb 23, 2025 | Delchev | ½–½ | Andersen | new tournament description | Italian Game: Classical Variation, Giuoco Pianissimo, with a6 | |
| Feb 22, 2025 | Sindarov | 1–0 | Delchev | new tournament description | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Jan 12, 2025 | Delchev | ½–½ | Ikonnikov | Schachbundesliga 2024/2025 | Sicilian Defense: Old Sicilian | |
| Jan 11, 2025 | Neef | ½–½ | Delchev | Schachbundesliga 2024/2025 | King's Indian Attack: Double Fianchetto | |
| Mar 9, 2025 | Tryggestad | ½–½ | Delchev | Eliteserien 24 25 | Four Knights Game: Spanish Variation, Rubinstein Variation Accepted | |
| Mar 8, 2025 | Delchev | 0–1 | Miezis | Eliteserien 24 25 | Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation | |
| Mar 7, 2025 | Delchev | ½–½ | Sklyarov | Eliteserien 24 25 | Kangaroo Defense | |
| Dec 1, 2024 | Fridman | 1–0 | Delchev | SBL | King's Indian Attack | |
| Nov 30, 2024 | Delchev | ½–½ | Brkic | SBL | Sicilian Defense: Moscow Variation | |
| Oct 6, 2024 | Donchenko | 1–0 | Delchev | Schachbundesliga 2024/25 | Ruy Lopez: Closed, Breyer Defense, Zaitsev Hybrid | |
| Oct 5, 2024 | Delchev | ½–½ | Heimann | Schachbundesliga 2024/25 | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Dec 8, 2024 | Pantzar | ½–½ | Delchev | Eliteserien 24 25 | Kangaroo Defense: Keres Defense, Transpositional Variation | |
| Dec 7, 2024 | Delchev | ½–½ | Kvaloy | Eliteserien 24 25 | Sicilian Defense: Moscow Variation | |
| Dec 6, 2024 | Delchev | 1–0 | Oksendal | Eliteserien 24 25 | Sicilian Defense: Najdorf Variation, Opocensky Variation | |
| Mar 10, 2024 | Romanov | 1–0 | Delchev | Eliteserien 2023 24 | East Indian Defense | |
| Mar 9, 2024 | Delchev | 1–0 | Gjestemoen-VonHirsch | Eliteserien 2023 24 | Sicilian Defense: French Variation | |
| Mar 8, 2024 | Jankovic | ½–½ | Delchev | Eliteserien 2023 24 | Queen's Gambit Declined: Ragozin Defense | |
| Feb 4, 2024 | Delchev | ½–½ | Mikalsen | Eliteserien 2023 24 | Queen's Gambit Declined: Harrwitz Attack, Fianchetto Defense | |
| Feb 3, 2024 | Storme | ½–½ | Delchev | Eliteserien 2023 24 | Four Knights Game: Scotch Variation Accepted | |
| Feb 2, 2024 | Delchev | ½–½ | Vestby-Ellingsen | Eliteserien 2023 24 | Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation | |
| Oct 6, 2023 | Huzman | 1–0 | Delchev | European Chess Club Cup 2023 | Catalan Opening: Open Defense | |
| Oct 2, 2023 | Delchev | 1–0 | Sanz Wawer | European Chess Club Cup 2023 | Queen's Gambit Declined: Harrwitz Attack | |
| Apr 30, 2023 | Kamsky | ½–½ | Delchev | Schachbundesliga | Sicilian Defense: Accelerated Dragon, Modern Bc4 Variation | |
| Apr 29, 2023 | Delchev | ½–½ | Tabatabaei | Schachbundesliga | Indian Defense: Anti-Nimzo-Indian | |
| Apr 2, 2023 | Delchev | ½–½ | Markus | Schachbundesliga | Bogo-Indian Defense: Nimzowitsch Variation | |
| Apr 1, 2023 | Areshchenko | ½–½ | Delchev | Schachbundesliga | Sicilian Defense: Four Knights Variation | |
| Mar 19, 2023 | Delchev | ½–½ | Pechac | Schachbundesliga | Queen's Gambit Declined: Ragozin Defense, Alekhine Variation | |
| Mar 18, 2023 | Agopov | 0–1 | Delchev | Schachbundesliga | Ruy Lopez: Closed, Martinez Variation | |
| Feb 26, 2023 | Ivanisevic | 0–1 | Delchev | Schachbundesliga | King's Indian Defense: Fianchetto Variation, Immediate Fianchetto | |
| Feb 25, 2023 | Delchev | 0–1 | Vitiugov | Schachbundesliga | Sicilian Defense: Moscow Variation | |
| Feb 5, 2023 | Delchev | ½–½ | Svane | Schachbundesliga | Zukertort Opening | |
| Feb 4, 2023 | Cheparinov | 1–0 | Delchev | Schachbundesliga | Ruy Lopez: Morphy Defense, Neo-Arkhangelsk Variation | |
| Oct 29, 2023 | Gullaksen | 0–1 | Delchev | Eliteserien 2023 24 | Ruy Lopez: Morphy Defense, Cozio Defense | |
| Oct 28, 2023 | Delchev | 0–1 | Mitusov | Eliteserien 2023 24 | Catalan Opening: Open Defense | |
| Oct 27, 2023 | Delchev | 0–1 | Pranav | Eliteserien 2023 24 | Caro-Kann Defense: Endgame Offer | |
| Nov 27, 2022 | Moiseenko | 1–0 | Delchev | Schachbundesliga | Queen's Gambit Accepted: Janowski-Larsen Variation | |