| 15 ago 2026 | Radzimski, Antoni 2405 | Sobol, Matvii 2276 | ½-½ | A29 English Opening: King's English Variation, Four Knights Variation, Fianchetto Line | European Junior Chess Championship 2026 | Open | 41 | Ver |
| 14 ago 2026 | Nedelcu, Teodor-Cosmin 2313 | Radzimski, Antoni 2405 | 1-0 | A13 English Opening: Agincourt Defense | European Junior Chess Championship 2026 | Open | 61 | Ver |
| 13 ago 2026 | Radzimski, Antoni 2405 | Belyaletdinov, Leonard 2264 | ½-½ | B19 Caro-Kann Defense: Classical Variation, Lobron System | European Junior Chess Championship 2026 | Open | 43 | Ver |
| 12 ago 2026 | Arakelyan, Manvel 2299 | Radzimski, Antoni 2405 | ½-½ | E62 King's Indian Defense: Fianchetto Variation, Larsen Defense | European Junior Chess Championship 2026 | Open | 27 | Ver |
| 8 ago 2026 | Kozlovic, Jernej 2328 | Radzimski, Antoni 2405 | 0-1 | C70 Ruy Lopez: Morphy Defense, Cozio Defense | European Junior Chess Championship 2026 | Open | 71 | Ver |
| 7 ago 2026 | Radzimski, Antoni 2405 | Avanesyan, Aleksandr 2249 | 1-0 | A06 Zukertort Opening | European Junior Chess Championship 2026 | Open | 21 | Ver |
| 6 ago 2026 | Gusev, Mikhail 2212 | Radzimski, Antoni 2405 | ½-½ | A05 King's Indian Attack: Symmetrical Defense | European Junior Chess Championship 2026 | Open | 28 | Ver |
| 4 ago 2026 | Radzimski, Antoni 2405 | Ohanyan, Emin 2517 | 0-1 | D48 Semi-Slav Defense: Meran Variation, Old Variation | European Junior Chess Championship 2026 | Open | 64 | Ver |
| 4 ago 2026 | Radzimski, Antoni 2405 | Nainys, Zanas 2313 | 1-0 | D36 Queen's Gambit Declined: Exchange Variation, Reshevsky Variation | European Junior Chess Championship 2026 | Open | 54 | Ver |
| 1 ago 2026 | Radzimski, Antoni 2394 | Vagman, Roy 2374 | ½-½ | A19 English Opening: Anglo-Indian Defense, Flohr-Mikenas-Carls Variation, Nei Gambit | European Youth Team Chess Championship - Open18 | 44 | Ver |
| 13 jul 2026 | Radzimski, Antoni 2213 | Grot, Blazej 2213 | 1-0 | A15 English Opening: Anglo-Indian Defense, King's Knight Variation | Blitz C18 | 40 | Ver |
| 13 jul 2026 | Warchol, Kamil 2277 | Radzimski, Antoni 2213 | ½-½ | C54 Italian Game: Classical Variation, Giuoco Pianissimo | Blitz C18 | 42 | Ver |
| 13 jul 2026 | Mulawa, Cyprian 2324 | Radzimski, Antoni 2213 | 0-1 | A15 English Opening: Anglo-Indian Defense, King's Indian Formation | Blitz C18 | 62 | Ver |
| 13 jul 2026 | Radzimski, Antoni 2213 | Rekuc, Patryk 2290 | 1-0 | A34 English Opening: Symmetrical Variation, Normal Variation | Blitz C18 | 51 | Ver |
| 13 jul 2026 | Sniadecki, Oskar 2109 | Radzimski, Antoni 2213 | 0-1 | A45 Trompowsky Attack | Blitz C18 | 32 | Ver |
| 13 jul 2026 | Radzimski, Antoni 2213 | Sowinski, Pawel 2355 | 0-1 | E63 King's Indian Defense: Fianchetto Variation, Panno Variation | Blitz C18 | 55 | Ver |
| 12 jul 2026 | Radzimski, Antoni 2336 | Grot, Blazej 2362 | ½-½ | E49 Nimzo-Indian Defense: Normal Variation, Botvinnik System | Rapid C18 | 71 | Ver |
| 12 jul 2026 | Bochniak, Franciszek 2260 | Radzimski, Antoni 2336 | 0-1 | A05 Zukertort Opening: Nimzo-Larsen Variation | Rapid C18 | 71 | Ver |
| 12 jul 2026 | Radzimski, Antoni 2336 | Zieba, Hubert 2198 | ½-½ | A38 English Opening: Symmetrical Variation, Full Symmetry Line | Rapid C18 | 24 | Ver |
| 11 jul 2026 | Radzimski, Antoni 2336 | Terkiewicz, Bruno 2267 | 1-0 | A13 English Opening: Agincourt Defense | Rapid C18 | 53 | Ver |