| Mar 15, 2026 | Andreev | 0–1 | Delchev | Round 7: Andreev, Simeon - Delchev, Petar | ? | |
| Mar 15, 2026 | Delchev | 1–0 | Lozanov | Round 6: Delchev, Petar - Lozanov, Svetoslav | Indian Defense: London System | |
| Mar 14, 2026 | Delchev | 1–0 | Hadzhaismail | Round 4: Delchev, Petar - Hadzhaismail, Demir | London System | |
| Mar 14, 2026 | Zaiarski | 1–0 | Delchev | Round 5: Zaiarski, Stepan - Delchev, Petar | Scandinavian Defense: Modern Variation | |
| Mar 14, 2026 | Vangelov | 0–1 | Delchev | Round 3: Vangelov, Atanas - Delchev, Petar | Mikenas Defense | |
| Mar 13, 2026 | Delchev | ½–½ | Kamenov | Momchilgrad Classics 2026 | Pirc Defense: Byrne Variation | |
| Mar 13, 2026 | Gyulestan | 0–1 | Delchev | Momchilgrad Classics 2026 | King's Pawn Game: Dresden Opening | |
| Nov 23, 2025 | Delchev | 0–1 | Nikolov | Asenovgrad 2025 | Queen's Pawn Game: Symmetrical Variation | |
| Nov 23, 2025 | Hristov | 0–1 | Delchev | Asenovgrad 2025 | Queen's Pawn Game: London System | |
| Nov 23, 2025 | Delchev | ½–½ | Trendafilov | Asenovgrad 2025 | London System | |
| Nov 22, 2025 | Vangelov | ½–½ | Delchev | Asenovgrad 2025 | Queen's Gambit Declined: Charousek Variation | |
| Nov 22, 2025 | Delchev | ½–½ | Esmer | Asenovgrad 2025 | Queen's Pawn Game: Accelerated London System, Steinitz Countergambit | |
| Nov 22, 2025 | Stoyanov | 1–0 | Delchev | Asenovgrad 2025 | Queen's Gambit Declined: Three Knights Variation | |
| Nov 22, 2025 | Delchev | 1–0 | Stoychev | Asenovgrad 2025 | Indian Defense: London System | |
| Nov 21, 2025 | Ivanov | 0–1 | Delchev | Asenovgrad 2025 | King's Indian Attack: Keres Variation | |
| Nov 21, 2025 | Delchev | 1–0 | Krastev | Asenovgrad 2025 | Queen's Pawn Game: Accelerated London System | |
| Nov 21, 2025 | Angelov | 1–0 | Delchev | Asenovgrad 2025 | English Opening: Agincourt Defense | |
| Nov 21, 2025 | Angelov | * | Delchev | Asenovgrad Rapid 2025 | ? | |
| Nov 21, 2025 | Delchev | 1–0 | Georgiev | Asenovgrad 2025 | Horwitz Defense | |
| Oct 26, 2025 | Tsolov | 0–1 | Delchev | Round 11: Tsolov, Aleksandar - Delchev, Petar | Scandinavian Defense: Modern Variation | |
| Oct 26, 2025 | Delchev | ½–½ | Marzakov | Round 10: Delchev, Petar - Marzakov, Mihail | Indian Defense: London System | |
| Oct 26, 2025 | Iliev | 1–0 | Delchev | Round 9: Iliev, Hristiyan - Delchev, Petar | Scandinavian Defense: Modern Variation | |
| Oct 26, 2025 | Delchev | 1–0 | Elci | Round 8: Delchev, Petar - Elci, Eren | London System | |
| Oct 26, 2025 | Dimitrova | ½–½ | Delchev | Round 7: Dimitrova, Elena - Delchev, Petar | Sicilian Defense: Moscow Variation | |
| Oct 25, 2025 | Delchev | 0–1 | Petrov | Round 6: Delchev, Petar - Petrov, Martin | Indian Defense: London System | |
| Oct 25, 2025 | Petkov | 0–1 | Delchev | Round 5: Petkov, Rostislav - Delchev, Petar | Scandinavian Defense | |
| Oct 25, 2025 | Delchev | ½–½ | Trendafilov | Round 4: Delchev, Petar - Trendafilov, Simeon | Indian Defense: London System | |
| Oct 25, 2025 | Spasov | ½–½ | Delchev | Round 3: Spasov, Vasil - Delchev, Petar | Sicilian Defense: Dragon Variation, Classical Variation | |
| Oct 25, 2025 | Kamber | 0–1 | Delchev | Round 1: Kamber, Aydan - Delchev, Petar | Queen's Gambit Declined: Three Knights Variation | |
| Oct 25, 2025 | Delchev | 1–0 | Mihailidou | Round 2: Delchev, Petar - Mihailidou, Magdalini | Queen's Pawn Game: Accelerated London System | |
