| 5 jul 2026 | Sieczkowski, Adam 2075 | Padalka, Artem 2077 | 1-0 | E11 Bogo-Indian Defense: Retreat Variation | Najdorf Memorial | 30 | Ver |
| 4 jul 2026 | Druzd, Szymon 2006 | Sieczkowski, Adam 2075 | ½-½ | C45 Scotch Game | Najdorf Memorial | 59 | Ver |
| 3 jul 2026 | Bartodziej, Bartosz 2311 | Sieczkowski, Adam 2075 | 1-0 | E15 Queen's Indian Defense: Fianchetto Variation, Rubinstein Variation | Najdorf Memorial | 72 | Ver |
| 2 jul 2026 | Sieczkowski, Adam 2075 | Wierzbicki, Dawid 2207 | 0-1 | B06 Modern Defense | Najdorf Memorial | 60 | Ver |
| 1 jul 2026 | Nawalaniec, Adam 2297 | Sieczkowski, Adam 2075 | 1-0 | C10 French Defense: Rubinstein Variation, Blackburne Defense | Najdorf Memorial | 60 | Ver |
| 30 jun 2026 | Sieczkowski, Adam 2031 | Khamidov, Abdulla 2254 | ½-½ | A21 English Opening: King's English Variation, Kramnik-Shirov Counterattack | Najdorf Memorial | 87 | Ver |
| 29 jun 2026 | Sieczkowski, Adam 2031 | Pancewicz, Szymon 2126 | 1-0 | D02 Queen's Pawn Game: Zukertort Variation | Najdorf Memorial | 56 | Ver |
| 28 jun 2026 | Debmisra, Ariv 2094 | Sieczkowski, Adam 2031 | 0-1 | B50 Sicilian Defense: Delayed Alapin Variation, with d6 | Najdorf Memorial | 34 | Ver |
| 27 jun 2026 | Korszanski, Stanislaw 2225 | Sieczkowski, Adam 2031 | 1-0 | B13 Caro-Kann Defense: Panov Attack | Najdorf Memorial | 60 | Ver |
| 31 ene 2026 | Sieczkowski, Adam 2008 | Fernandez, Michael 2245 | 0-1 | D11 Slav Defense: Quiet Variation | Kidlington Chess Congress 2026: Open | 51 | Ver |
| 31 ene 2026 | Sieczkowski, Adam 2008 | Hobson, Kenneth 2264 | 1-0 | E11 Bogo-Indian Defense: Retreat Variation | Kidlington Chess Congress 2026: Open | 44 | Ver |