| Jun 27, 2026 | Breznik | ½–½ | Basevich | Round 11: Breznik, Marko - Basevich, Mark Sem | Vienna Game: Stanley Variation, Monster Declined | |
| Jun 26, 2026 | Bijibilla | 0–1 | Breznik | Round 10: Bijibilla, Anish - Breznik, Marko | Italian Game: Giuoco Pianissimo, Normal | |
| Jun 25, 2026 | Breznik | 1–0 | Mahmoud Sameir | Round 9: Breznik, Marko - Mahmoud Sameir, Zeineldin | Caro-Kann Defense: Forgacs Variation | |
| Jun 24, 2026 | Alexandrakis | ½–½ | Breznik | Round 8: Alexandrakis, Alexios - Breznik, Marko | Italian Game: Scotch Gambit, Anderssen Attack | |
| Jun 23, 2026 | Breznik | 1–0 | Saria | FIDE World Cadets Cup, O08 / B20-58 | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Jun 21, 2026 | Aleks Avetyan | 1–0 | Breznik | Round 6: Aleks Avetyan - Breznik, Marko | Bishop's Opening: Ponziani Gambit | |
| Jun 20, 2026 | Breznik | 0–1 | Bartagov | Round 5: Breznik, Marko - Bartagov, Aleksandr Pet | Sicilian Defense: Hyperaccelerated Dragon | |
| Jun 19, 2026 | Pujar | ½–½ | Breznik | Round 4: Pujar, Anish - Breznik, Marko | Queen's Pawn Game: Accelerated London System, Steinitz Countergambit | |
| Jun 18, 2026 | Breznik | 1–0 | Alexandre Jangulashvili | Round 3: Breznik, Marko - Alexandre Jangulashvili | Sicilian Defense: O'Kelly Variation, Venice System | |
| Jun 17, 2026 | Gavyrin | 1–0 | Breznik | Round 2: Gavyrin, Artem - Breznik, Marko | Scotch Game: Scotch Gambit, Göring Gambit Declined | |
| Jun 16, 2026 | Breznik | 1–0 | Vakhtang Kapanadze | Round 1: Breznik, Marko - Vakhtang Kapanadze | Caro-Kann Defense: Forgacs Variation | |
| May 3, 2026 | Breznik | * | Hudoklin | Ljubljana Chess Festival | ? | |
| May 2, 2026 | Spelec | * | Breznik | Ljubljana Chess Festival | ? | |
| May 1, 2026 | Breznik | * | Skarlovnik | Ljubljana Chess Festival | ? | |
| May 1, 2026 | Kegl | * | Breznik | Ljubljana Chess Festival | ? | |
| Apr 28, 2026 | Gambarotto | * | Breznik | LCF | ? | |
| Apr 28, 2026 | Breznik | 1–0 | Blatnik | Ljubljana Chess Festival | ? | |
| Apr 27, 2026 | Breznik | 0–1 | Markovcic | Ljubljana Chess Festival | ? | |
| Feb 1, 2026 | Breznik | 0–1 | Franjic | Round 4: Breznik, Marko - Franjic, Emil | Caro-Kann Defense: Tartakower Variation | |
| Jan 31, 2026 | Breznik | ½–½ | Puhalo | Round 3: Breznik, Marko - Puhalo, Robert | Sicilian Defense: Scheveningen Variation, English Attack, with f3 | |
