| 23 ago 2026 | Tamas, Christian-Arrydan 2362 | Lechowski, Witold 2266 | 1-0 | E25 Nimzo-Indian Defense: Sämisch Variation, Keres Variation | Kanizsa Open | 75 | Ver |
| 22 ago 2026 | Lechowski, Witold 2266 | Canino, Ruelle 2130 | 1-0 | E11 Bogo-Indian Defense: Retreat Variation | Kanizsa Open | 34 | Ver |
| 21 ago 2026 | Gschnitzer, Adrian 2435 | Lechowski, Witold 2266 | ½-½ | C54 Italian Game: Classical Variation, Giuoco Pianissimo | Kanizsa Open | 78 | Ver |
| 20 ago 2026 | Lechowski, Witold 2266 | Kurmangaliyeva, Liya 2361 | 0-1 | E11 Bogo-Indian Defense: Retreat Variation | Kanizsa Open | 40 | Ver |
| 19 ago 2026 | Kueppers, Timo 2336 | Lechowski, Witold 2266 | ½-½ | C67 Ruy Lopez: Berlin Defense, Rio Gambit Accepted | Kanizsa Open | 22 | Ver |
| 18 ago 2026 | Lechowski, Witold 2266 | Fronda, Jan Jodilyn 2125 | 1-0 | D17 Slav Defense: Czech Variation, Krause Attack | Kanizsa Open | 60 | Ver |
| 17 ago 2026 | Culum, Sanjin 2459 | Lechowski, Witold 2266 | 1-0 | C54 Italian Game: Classical Variation, Giuoco Pianissimo | Kanizsa Open | 41 | Ver |
| 16 ago 2026 | Lechowski, Witold 2266 | Arshiya Das 2149 | 1-0 | E04 Catalan Opening: Open Defense | Kanizsa Open | 49 | Ver |
| 15 ago 2026 | Aizenberg, Benny 2469 | Lechowski, Witold 2266 | 1-0 | C67 Ruy Lopez: Berlin Defense, l'Hermet Variation, Berlin Wall Defense | Kanizsa Open | 76 | Ver |
| 1 ago 2026 | Grech, Kacper 2015 | Lechowski, Witold 2162 | ½-½ | C45 Scotch Game: Mieses Variation | anderssenRAPID | 63 | Ver |
| 1 ago 2026 | Lechowski, Witold 2162 | Aliaudzin, Mikolaj 2308 | 0-1 | A53 Old Indian Defense | anderssenRAPID | 84 | Ver |
| 12 jul 2026 | Mroczkowski, Adam 2057 | Lechowski, Witold 2162 | 1-0 | C48 Four Knights Game: Spanish Variation, Rubinstein Variation, Henneberger Variation | Rapid C16 | 87 | Ver |
| 12 jul 2026 | Uhryn, Lukasz 2036 | Lechowski, Witold 2162 | ½-½ | A05 King's Indian Attack: Wahls Defense | Rapid C16 | 55 | Ver |
| 12 jul 2026 | Lechowski, Witold 2162 | Smolinski, Wojciech 2057 | 0-1 | E11 Bogo-Indian Defense: Retreat Variation | Rapid C16 | 32 | Ver |
| 11 jul 2026 | Kawulski-Chodkiewicz, Alexander 2135 | Lechowski, Witold 2162 | ½-½ | C54 Italian Game: Classical Variation, Greco Gambit, Modern Line | Rapid C16 | 17 | Ver |
| 11 jul 2026 | Lechowski, Witold 2162 | Haladaj, Adam 2084 | 1-0 | E04 Catalan Opening: Open Defense | Rapid C16 | 42 | Ver |
| 29 may 2026 | Lechowski, Witold 2243 | Grot, Blazej 2325 | ½-½ | E05 Catalan Opening: Open Defense, Classical Line | DMPJ - Ekstraliga 2026 | 30 | Ver |
| 25 may 2026 | Mulawa, Cyprian 2379 | Lechowski, Witold 2243 | 1-0 | A34 English Opening: Symmetrical Variation, Three Knights Variation | DMPJ - Ekstraliga 2026 | 25 | Ver |
| 23 may 2026 | Brzezina, Piotr 2370 | Lechowski, Witold 2243 | 1-0 | D35 Queen's Gambit Declined: Exchange Variation, Positional Variation | DMPJ - Ekstraliga 2026 | 50 | Ver |
| 22 may 2026 | Lechowski, Witold 2243 | Rozanski, Mateusz 2086 | 1-0 | A04 Zukertort Opening: Dutch Variation | DMPJ - Ekstraliga 2026 | 29 | Ver |