| Jan 30, 2026 | Kucelj | 0–1 | Biti | Round 1: Kucelj, Kevin - Biti, Ozren | Philidor Defense: Lion Variation | |
| Jun 20, 2025 | Kucelj | ½–½ | Nimac-Kalcina | prvenstvo hrvatske do 15 godima m | Sicilian Defense: Accelerated Dragon, Modern Bc4 Variation | |
| Jun 19, 2025 | Domic | ½–½ | Kucelj | prvenstvo hrvatske do 15 godima m | Catalan Opening: Open Defense | |
| Jun 19, 2025 | Kucelj | 1–0 | Tadic | prvenstvo hrvatske do 15 godima m | Sicilian Defense: Paulsen-Basman Defense | |
| Jun 17, 2025 | Kucelj | * | Juric | prvenstvo hrvatske do 15 godima m | Caro-Kann Defense: Two Knights Attack | |
| Jun 17, 2025 | Kucelj | 1–0 | Sosic | prvenstvo hrvatske do 15 godima m | Sicilian Defense: Najdorf Variation, Main Line | |
| Jun 17, 2025 | Mandaric | ½–½ | Kucelj | prvenstvo hrvatske do 15 godima m | French Defense: Advance Variation | |
| Jun 17, 2025 | Kucelj | 1–0 | Ferdebar | prvenstvo hrvatske do 15 godima m | Petrov's Defense: Three Knights Game | |
| Jun 17, 2025 | Milanovic Bolfek | 0–1 | Kucelj | prvenstvo hrvatske do 15 godima m | French Defense: Two Knights Variation | |
| Jun 17, 2025 | Malaric | ½–½ | Kucelj | prvenstvo hrvatske do 15 godima m | French Defense: Classical Variation | |
| Jun 27, 2024 | Kucelj | 0–1 | Radalj | Round 8: Kucelj, Kevin - Radalj, Niko | Sicilian Defense: Najdorf Variation, Main Line | |
| Jun 26, 2024 | Kucelj | ½–½ | Petric | Round 6: Kucelj, Kevin - Petric, Roko | Sicilian Defense: Dragon Variation, Yugoslav Attack | |
| Jun 25, 2024 | Kucelj | 0–1 | Simunkovic | Round 5: Kucelj, Kevin - Simunkovic, Bartol | Sicilian Defense: Najdorf Variation | |
| Jun 24, 2024 | Perak | 0–1 | Kucelj | Round 3: Perak, Matej - Kucelj, Kevin | Sicilian Defense: Alapin Variation, Smith-Morra Declined | |
| Jun 23, 2024 | Gal | ½–½ | Kucelj | Round 4: Gal, Andrej - Kucelj, Kevin | Bogo-Indian Defense: Grünfeld Variation | |
| Sep 30, 2023 | Kucelj | 0–1 | Gal | 22nd European Youth Blitz Championship 2023 - O-14 | Sicilian Defense: Najdorf Variation | |
| Sep 30, 2023 | Kucelj | 0–1 | Ernst | 22nd European Youth Blitz Championship 2023 - O-14 | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Aug 6, 2021 | Kucelj | 0–1 | Shuping | World Youth Cup 2021 O12-G16 - Open 12 | English Opening: Agincourt Defense | |
| Aug 6, 2021 | Kucelj | 1–0 | Enoe | World Youth Cup 2021 O12-G16 - Open 12 | English Opening: Anglo-Indian Defense, King's Knight Variation | |
| Aug 6, 2021 | Kucelj | 0–1 | Chuluunbaatar | World Youth Cup 2021 O12-G16 - Open 12 | English Opening: Anglo-Indian Defense, Old Indian Formation | |
| Aug 6, 2021 | Kucelj | 1–0 | Kyriakides | World Youth Cup 2021 O12-G16 - Open 12 | English Opening: Anglo-Indian Defense, Old Indian Formation | |
| Aug 6, 2021 | Kucelj | 0–1 | Mungal | World Youth Cup 2021 O12-G16 - Open 12 | English Opening: Symmetrical Variation, Hedgehog Defense | |
| Aug 6, 2021 | Arhimow | 1–0 | Kucelj | World Youth Cup 2021 O12-G16 - Open 12 | Sicilian Defense: Smith-Morra Gambit Accepted | |
| Aug 6, 2021 | Keber | 1–0 | Kucelj | World Youth Cup 2021 O12-G16 - Open 12 | Sicilian Defense: Najdorf Variation, English Attack | |
| Aug 6, 2021 | Abdullah | 0–1 | Kucelj | World Youth Cup 2021 O12-G16 - Open 12 | Sicilian Defense: Staunton-Cochrane Variation | |
| Aug 6, 2021 | Rajandu | 0–1 | Kucelj | World Youth Cup 2021 O12-G16 - Open 12 | Sicilian Defense: Alapin Variation, Sherzer Variation | |
| Aug 6, 2021 | Reyes Rivera | 1–0 | Kucelj | World Youth Cup 2021 O12-G16 - Open 12 | Sicilian Defense: Najdorf Variation, Lipnitsky Attack | |
