| Nov 20, 2025 | Plenca | 1–0 | Pecnik | Round 6: Plenca, Jadranko - Pecnik, Leo | French Defense: Winawer Variation, Delayed Exchange Variation | |
| Nov 18, 2025 | Tica | ½–½ | Pecnik | Round 4: Tica, Sven - Pecnik, Leo | Zukertort Opening: Kingside Fianchetto | |
| Nov 17, 2025 | Pecnik | * | Srbis | Round 3: Pecnik, Leo - Srbis, Jurica | ? | |
| Nov 16, 2025 | Muha | 1–0 | Pecnik | Round 2: Muha, Miljenko - Pecnik, Leo | Scandinavian Defense: Lasker Variation | |
| Nov 15, 2025 | Pecnik | * | Rezan | Round 1: Pecnik, Leo - Rezan, Sasa | ? | |
| Oct 13, 2024 | Makovec | 0–1 | Pecnik | I.B Hrvatska šahovska liga | King's Indian Defense: Kramer Variation | |
| Oct 12, 2024 | Pecnik | ½–½ | Zovko | I.B Hrvatska šahovska liga | French Defense: King's Indian Attack | |
| Oct 10, 2024 | Pecnik | 1–0 | Troselj | I.B Hrvatska šahovska liga | King's Indian Attack | |
| May 9, 2024 | Tica | 0–1 | Pecnik | Round 2: Tica, Sven - Pecnik, Leo | East Indian Defense | |
| Aug 31, 2024 | Pecnik | ½–½ | Deglmann | Round 9: Pecnik, Leo - Deglmann, Ludwig | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Aug 30, 2024 | Pecnik | 0–1 | Kruckenhauser | Round 8: Pecnik, Leo - Kruckenhauser, Arthur | Sicilian Defense: Najdorf Variation, Lipnitsky Attack | |
| Aug 29, 2024 | Van Dam | 0–1 | Pecnik | Round 7: Van Dam, Niels - Pecnik, Leo | Pirc Defense | |
| Aug 28, 2024 | Pecnik | 1–0 | Sindermann | Round 6: Pecnik, Leo - Sindermann, Peter | Sicilian Defense: O'Kelly Variation, Réti System | |
| Aug 27, 2024 | Hengl | 1–0 | Pecnik | Round 5: Hengl, Philip - Pecnik, Leo | Pirc Defense | |
| Aug 26, 2024 | Pecnik | ½–½ | Pilz | Round 4: Pecnik, Leo - Pilz, Dieter | Sicilian Defense: Kalashnikov Variation | |
| Aug 25, 2024 | Monninger | 0–1 | Pecnik | Round 2: Monninger, Moritz - Pecnik, Leo | Rapport-Jobava System, with e6 | |
| Aug 25, 2024 | Zelcic | 1–0 | Pecnik | Round 3: Zelcic, Robert - Pecnik, Leo | Sicilian Defense: Kalashnikov Variation | |
| Aug 24, 2024 | Pecnik | 1–0 | Platzgummer | Round 1: Pecnik, Leo - Platzgummer, Peter | Queen's Pawn Game: Accelerated London System | |
| — | Pecnik | ½–½ | Veselic | LCF 2025 | French Defense: Classical Variation, Steinitz Variation | |
| — | Pecnik | 1–0 | Skarlovnik | LCF 2025 | Sicilian Defense: Alapin Variation | |
| — | Pecnik | ½–½ | Tratar | LCF 2025 | French Defense: Chigorin Variation | |
| — | Pecnik | 1–0 | De Witte | Split Chess Open 2025 | King's Indian Attack | |
| — | Pecnik | ½–½ | Michalicka | Split Chess Open 2025 | Trompowsky Attack | |
| — | Pecnik | 0–1 | Rama | Split Chess Open 2025 | Lion Defense: Bayonet Attack | |
| — | Pecnik | 1–0 | Bajlo | Split Chess Open 2025 | Scandinavian Defense: Mieses-Kotroc Variation | |
| — | Pecnik | ½–½ | Chernyak | Split Chess Open 2025 | French Defense: Advance Variation, Paulsen Attack | |
| — | Belyaletdinov | 0–1 | Pecnik | LCF 2025 | Sicilian Defense: O'Kelly Variation, Maróczy Bind, Robatsch Line | |
| — | Thorfinnsson | * | Pecnik | LCF 2025 | King's Indian Defense: Orthodox Variation | |
| — | Ivancic | ½–½ | Pecnik | Split Chess Open 2025 | Alekhine Defense: Exchange Variation | |
| — | Kantorik | ½–½ | Pecnik | Split Chess Open 2025 | King's Indian Defense: Four Pawns Attack | |
| — | Golubovic | ½–½ | Pecnik | Split Chess Open 2025 | Benoni Defense: Classical Variation, New York Variation | |
