| 30 ago 2026 | Marek, Grzegorz 2001 | Shilov, Sergej 2163 | 0-1 | B06 Defensa Moderna: Standard Defense | II Liga 2026 | 37 | Ver |
| 29 ago 2026 | Keyser, Robin 2164 | Marek, Grzegorz 2001 | 1-0 | A50 Queen's Indian Accelerated | II Liga 2026 | 44 | Ver |
| 23 ago 2026 | Marek, Grzegorz 2001 | Kopacki, Aleksander 2044 | 0-1 | A07 Ataque Indio de Rey | Polanica2026-openA | 54 | Ver |
| 22 ago 2026 | Szuminski, Jakub 2074 | Marek, Grzegorz 2001 | 1-0 | B30 Defensa Siciliana: Nyezhmetdinov-Rossolimo Attack | 62. Miedzynarodowy Festiwal Szachowy im. Akiby Rubinsteina - OPEN A | 60 | Ver |
| 21 ago 2026 | Marek, Grzegorz 2001 | Grzebieniowski, Michal 2063 | ½-½ | B15 Defensa Caro-Kann: Tartakower Variation, Perlis Line | Polanica2026-openA | 13 | Ver |
| 20 ago 2026 | Sniadecki, Oskar 2131 | Marek, Grzegorz 2001 | 1-0 | A50 Queen's Indian Accelerated | Polanica2026-openA | 41 | Ver |
| 19 ago 2026 | Marek, Grzegorz 2001 | Matskevich, Varvara 2109 | ½-½ | B33 Defensa Siciliana: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | 62. Miedzynarodowy Festiwal Szachowy im. Akiby Rubinsteina - OPEN A | 57 | Ver |
| 18 ago 2026 | Majek, Kacper 2110 | Marek, Grzegorz 2001 | ½-½ | B45 Defensa Siciliana: Four Knights Variation | Polanica2026-openA | 71 | Ver |
| 17 ago 2026 | Marek, Grzegorz 2001 | Bednarek, Jan 2118 | ½-½ | C55 Apertura Italiana: Two Knights Defense | Polanica2026-openA | 60 | Ver |
| 16 ago 2026 | Werblinski, Wojciech 2127 | Marek, Grzegorz 2001 | ½-½ | E15 Defensa India de Dama: Fianchetto Variation, Check Variation, Intermezzo Line | 62. Miedzynarodowy Festiwal Szachowy im. Akiby Rubinsteina - OPEN A | 36 | Ver |
| 15 ago 2026 | Marek, Grzegorz 2001 | Borowik, Wojciech 2122 | ½-½ | A01 Ataque Nimzo-Larsen: Modern Variation | Polanica2026-openA | 89 | Ver |
| 6 ago 2026 | Semenukha, Nikita 2072 | Marek, Grzegorz 2001 | ½-½ | B45 Defensa Siciliana: Four Knights Variation, Exchange Variation | Memoria? Adolfa Anderssena - OPEN B 2026 | 27 | Ver |
| 1 ago 2026 | Marek, Grzegorz 2032 | Malisauskas, Vidmantas 2299 | 0-1 | A01 Ataque Nimzo-Larsen: English Variation | anderssenRAPID | 59 | Ver |
| 1 ago 2026 | Marek, Grzegorz 2032 | Pakleza, Zbigniew 2421 | ½-½ | A01 Ataque Nimzo-Larsen: Classical Variation | anderssenRAPID | 53 | Ver |
| 1 ago 2026 | Marek, Grzegorz 2032 | Nesterenko, Kyrylo 2295 | 0-1 | A01 Ataque Nimzo-Larsen: Modern Variation | anderssenRAPID | 41 | Ver |
| 1 ago 2026 | Klekowski, Maciej 2473 | Marek, Grzegorz 2032 | 1-0 | E12 Defensa India de Dama: Kasparov-Petrosian Variation, Marco Defense | anderssenRAPID | 26 | Ver |
| 4 oct 2025 | Marek, Grzegorz 2077 | Korszanski, Stanislaw 2247 | ½-½ | A01 Ataque Nimzo-Larsen: Symmetrical Variation | MP-rapid25 | 37 | Ver |