| 31 ago 2026 | Mazi, Leon 2301 | Vucenovic, Dragomir 2133 | 1-0 | C75 Apertura Española (Ruy López): Morphy Defense, Modern Steinitz Defense | European Senior Team Championships 2026 | Senior 65+ | 39 | Ver |
| 30 ago 2026 | Pigott, John C 2255 | Mazi, Leon 2301 | 0-1 | C95 Apertura Española (Ruy López): Closed, Breyer Defense | European Senior Team Championships 2026 | Senior 65+ | 57 | Ver |
| 29 ago 2026 | Mazi, Leon 2301 | Sibilio, Mario 2256 | ½-½ | B06 Defensa Moderna: Standard Defense | European Senior Team Championships 2026 | Senior 65+ | 37 | Ver |
| 28 ago 2026 | Gransky, Michael 2148 | Mazi, Leon 2301 | ½-½ | B32 Defensa Siciliana: Godiva Variation | European Senior Team Championships 2026 | Senior 65+ | 50 | Ver |
| 25 jun 2026 | Licznerski, Lukasz 2500 | Mazi, Leon 2282 | ½-½ | B32 Defensa Siciliana: Godiva Variation | Kasparov Chess Foundation Friendship Festival 2026 | 30 | Ver |
| 14 mar 2026 | Biti, Ozren 2267 | Mazi, Leon 2280 | ½-½ | C54 Apertura Italiana: Classical Variation, Giuoco Pianissimo | Bled Chess Festival 2026 | 15 | Ver |
| 10 mar 2026 | Demsar, Maks 2074 | Mazi, Leon 2280 | 0-1 | B90 Defensa Siciliana: Najdorf Variation, Adams Attack | Bled Chess Festival 2026 | 32 | Ver |
| 10 mar 2026 | Mazi, Leon 2280 | Vidic, Teja 2106 | ½-½ | B33 Defensa Siciliana: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | Bled Chess Festival 2026 | 40 | Ver |
| 9 mar 2026 | Mazi, Leon 2280 | Belyaletdinov, Leonard 2119 | 0-1 | B15 Defensa Caro-Kann: Tartakower Variation | Bled Chess Festival 2026 | 36 | Ver |
| 9 mar 2026 | Keber, Aljosa 2140 | Mazi, Leon 2280 | ½-½ | B22 Defensa Siciliana: Alapin Variation, Stoltz Attack | Bled Chess Festival 2026 | 30 | Ver |
| 9 mar 2026 | Krstic, David 2158 | Mazi, Leon 2280 | 0-1 | A20 Apertura Inglesa: King's English Variation | Bled Chess Festival 2026 | 54 | Ver |
| 9 mar 2026 | Mazi, Leon 2280 | Nainys, Zanas 2286 | 1-0 | C07 Defensa Francesa: Tarrasch Variation, Chistyakov Defense | Bled Chess Festival 2026 | 17 | Ver |
| 9 mar 2026 | Engesser, Jonas 2026 | Mazi, Leon 2280 | 0-1 | B23 Defensa Siciliana: Closed, Traditional | Bled Chess Festival 2026 | 47 | Ver |
| 6 dic 2025 | Grbac, Boris 2006 | Mazi, Leon 2285 | 0-1 | B47 Defensa Siciliana: Taimanov Variation, Bastrikov Variation | Open Poreč 2025 | 33 | Ver |
| 5 dic 2025 | Mazi, Leon 2285 | Mandalinic, David 2127 | ½-½ | C07 Defensa Francesa: Tarrasch Variation, Chistyakov Defense | Open Poreč 2025 | 67 | Ver |
| 30 nov 2025 | Fercec, Nenad 2358 | Mazi, Leon 2285 | ½-½ | B51 Defensa Siciliana: Moscow Variation | Open Poreč 2025 | 6 | Ver |
| 28 sep 2025 | Pavic, Filip 2271 | Mazi, Leon 2281 | ½-½ | B30 Defensa Siciliana: Nyezhmetdinov-Rossolimo Attack | Slovenian Team Championship 2025 | 41 | Ver |
| 27 sep 2025 | Mazi, Leon 2281 | Gjuran, Denis 2273 | 1-0 | B35 Defensa Siciliana: Accelerated Dragon, Modern Bc4 Variation | Slovenian Team Championship 2025 | 38 | Ver |
| 21 sep 2025 | Dobrovoljc, Vid 2382 | Mazi, Leon 2281 | 1-0 | A30 Apertura Inglesa: Symmetrical Variation | Slovenian Team Championship 2025 | 25 | Ver |
| 20 sep 2025 | Mazi, Leon 2281 | Hiti, Domen 2267 | ½-½ | C07 Defensa Francesa: Tarrasch Variation, Chistyakov Defense | Slovenian Team Championship 2025 | 58 | Ver |
