| 1 ago 2026 | Kacprzak, Karol 2345 | Subelj, Jan 2565 | 1-0 | C12 Defensa Francesa: McCutcheon Variation, Lasker Variation | Granada Chess Open 26 | 46 | Ver |
| 1 ago 2026 | Kozak, Adam 2531 | Kacprzak, Karol 2345 | ½-½ | C50 Apertura Italiana: Giuoco Pianissimo, Italian Four Knights Variation | Granada Chess Open 26 | 41 | Ver |
| 11 jul 2026 | Sai Krishna G V 2450 | Kacprzak, Karol 2345 | ½-½ | C79 Apertura Española (Ruy López): Morphy Defense, Steinitz Deferred | Montenegro Open - Mediterranean Championship 2026 | OPEN A | 108 | Ver |
| 10 jul 2026 | Kacprzak, Karol 2345 | Celik, Hasan Huseyin 2490 | ½-½ | B40 Defensa Siciliana: Pin Variation | Montenegro Open - Mediterranean Championship 2026 | OPEN A | 20 | Ver |
| 9 jul 2026 | Han, Yichen 2437 | Kacprzak, Karol 2345 | 0-1 | C52 Apertura Italiana: Evans Gambit, Pierce Defense | Montenegro Open - Mediterranean Championship 2026 | OPEN A | 53 | Ver |
| 9 jul 2026 | Kacprzak, Karol 2345 | Draskovic, Luka 2491 | ½-½ | C11 Defensa Francesa: Classical Variation, Burn Variation | Montenegro Open - Mediterranean Championship 2026 | OPEN A | 20 | Ver |
| 7 jul 2026 | Djukic, Nikola 2470 | Kacprzak, Karol 2345 | ½-½ | A37 Apertura Inglesa: Symmetrical Variation, Three Knights, Fianchetto Variation | Montenegro Open - Mediterranean Championship 2026 | OPEN A | 25 | Ver |
| 6 jul 2026 | Kacprzak, Karol 2345 | Fisher, Timofey 2192 | 1-0 | A57 Gambito Benko aceptado: Modern Variation | Montenegro Open - Mediterranean Championship 2026 | OPEN A | 24 | Ver |
| 5 jul 2026 | Shyam, Sundar M. 2478 | Kacprzak, Karol 2345 | 1-0 | D02 Apertura de Peón de Dama: London System | Montenegro Open - Mediterranean Championship 2026 | OPEN A | 28 | Ver |
| 3 abr 2026 | Kacprzak, Karol 2312 | Alonso Garcia, Aaron 2432 | ½-½ | C15 Defensa Francesa: Winawer Variation, Delayed Exchange Variation | PONTE DE LIMA CHESS TOURNAMENT 2026 | 47 | Ver |
| 3 abr 2026 | Kacprzak, Karol 2312 | Levin, Guy 2462 | ½-½ | C43 Defensa Petrov: Modern Attack, Center Variation | PONTE DE LIMA CHESS TOURNAMENT 2026 | 24 | Ver |
| 2 abr 2026 | Baranciuc, Alexandr 2334 | Kacprzak, Karol 2312 | ½-½ | C50 Apertura Italiana: Giuoco Pianissimo, Italian Four Knights Variation | PONTE DE LIMA CHESS TOURNAMENT 2026 | 44 | Ver |
| 1 abr 2026 | Kacprzak, Karol 2312 | Petkov, Vladimir 2438 | 1-0 | C60 Apertura Española (Ruy López): Fianchetto Defense | PONTE DE LIMA CHESS TOURNAMENT 2026 | 74 | Ver |
| 31 mar 2026 | Martin Duque, Jesus 2335 | Kacprzak, Karol 2312 | ½-½ | A14 Apertura Inglesa: Agincourt Defense, Neo-Catalan Declined | PONTE DE LIMA CHESS TOURNAMENT 2026 | 57 | Ver |
| 22 mar 2026 | Kacprzak, Karol 2314 | Roebers, Eline 2386 | ½-½ | C12 Defensa Francesa: McCutcheon Variation, Lasker Variation | 4NCL Division 2 2025-2026 | 39 | Ver |
| 21 mar 2026 | Kovalskyi, Roman 2163 | Kacprzak, Karol 2314 | ½-½ | C54 Apertura Italiana: Classical Variation, Giuoco Pianissimo | 4NCL Division 2 2025-2026 | 44 | Ver |
| 7 mar 2026 | Zochowski, Kacper 2321 | Kacprzak, Karol 2369 | 1-0 | A13 Apertura Inglesa: Agincourt Defense | AMP- Team | 54 | Ver |
| 7 mar 2026 | Janeczko, Jakub 2182 | Kacprzak, Karol 2369 | ½-½ | C47 Apertura de los Cuatro Caballos: Gunsberg Variation | AMP- Team | 58 | Ver |
| 6 mar 2026 | Kacprzak, Karol 2369 | Redzisz, Michal 2279 | ½-½ | C42 Defensa Petrov: Classical Attack, Staunton Variation | AMP-TEAM | 45 | Ver |
| 6 mar 2026 | Koziorowicz, Michal 2264 | Kacprzak, Karol 2369 | 1-0 | C47 Apertura de los Cuatro Caballos | AMP-M | 65 | Ver |