| 31 ago 2026 | Matskevich, Varvara 2109 | Nainys, Zanas 2313 | ½-½ | C11 French Defense: Classical Variation, Shirov-Anand Variation | MEGA BIG NORMS WARSAW SUMMER ?26 IM ROUND-ROBIN - A | 14 | Ver |
| 31 ago 2026 | Nainys, Zanas 2313 | Gahan M G 2231 | 0-1 | D85 Grünfeld Defense: Exchange Variation, Modern Exchange Variation, Kramnik's Line | MEGA BIG NORMS WARSAW SUMMER ?26 IM ROUND-ROBIN - A | 24 | Ver |
| 30 ago 2026 | Wites, Adam 2137 | Nainys, Zanas 2313 | ½-½ | C00 French Defense: King's Indian Attack | MEGA BIG NORMS WARSAW SUMMER ?26 IM ROUND-ROBIN - A | 65 | Ver |
| 30 ago 2026 | Nainys, Zanas 2313 | Ejsymont, Blanka 2054 | ½-½ | D37 Queen's Gambit Declined: Three Knights Variation | MEGA BIG NORMS WARSAW SUMMER ?26 IM ROUND-ROBIN - A | 39 | Ver |
| 29 ago 2026 | Nainys, Zanas 2313 | Fiszer, Bartosz 2328 | ½-½ | D80 Grünfeld Defense: Stockholm Variation | MEGA BIG NORMS WARSAW SUMMER ?26 IM ROUND-ROBIN - A | 81 | Ver |
| 29 ago 2026 | Chylewski, Patryk 2313 | Nainys, Zanas 2313 | ½-½ | D60 Queen's Gambit Declined: Orthodox Defense, Botvinnik Variation | MEGA BIG NORMS WARSAW SUMMER ?26 IM ROUND-ROBIN - A | 44 | Ver |
| 28 ago 2026 | Nainys, Zanas 2313 | Gibala, Adam 2398 | 1-0 | D37 Queen's Gambit Declined: Three Knights Variation | MEGA BIG NORMS WARSAW SUMMER ?26 IM ROUND-ROBIN - A | 54 | Ver |
| 28 ago 2026 | Piesik, Piotr 2418 | Nainys, Zanas 2313 | 1-0 | A14 English Opening: Agincourt Defense, Neo-Catalan Declined | MEGA BIG NORMS WARSAW SUMMER ?26 IM ROUND-ROBIN - A | 81 | Ver |
| 27 ago 2026 | Nainys, Zanas 2313 | Pacher, Milan 2300 | 0-1 | D10 Slav Defense: Exchange Variation | MEGA BIG NORMS WARSAW SUMMER ?26 IM ROUND-ROBIN - A | 52 | Ver |
| 13 ago 2026 | Nainys, Zanas 2313 | Weidenhoefer, Max 2212 | 0-1 | D37 Queen's Gambit Declined: Three Knights Variation | European Junior Chess Championship 2026 | Open | 51 | Ver |
| 12 ago 2026 | Pasti, Aron 2439 | Nainys, Zanas 2313 | 1-0 | C09 French Defense: Tarrasch Variation, Open System, Main Line | European Junior Chess Championship 2026 | Open | 53 | Ver |
| 10 ago 2026 | Nainys, Zanas 2313 | Zlatkov, Anton 2389 | 0-1 | E16 Queen's Indian Defense: Yates Variation | European Junior Chess Championship 2026 | Open | 32 | Ver |
| 7 ago 2026 | Pyrih, Roman 2399 | Nainys, Zanas 2313 | 0-1 | C11 French Defense: Classical Variation, Steinitz 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 |
| 4 ago 2026 | Nainys, Zanas 2313 | Stribuk, Artiom 2494 | 1-0 | E90 King's Indian Defense: Normal Variation, Rare Defenses | European Junior Chess Championship 2026 | Open | 39 | Ver |
| 2 ago 2026 | Rodriguez Avila, Alvaro 2216 | Nainys, Zanas 2321 | 0-1 | C11 French Defense: Classical Variation, Steinitz Variation | Granada Chess Open 26 | 29 | Ver |
| 1 ago 2026 | Nainys, Zanas 2321 | Kozak, Adam 2531 | 0-1 | E18 Queen's Indian Defense: Classical Variation, Traditional Variation | Granada Chess Open 26 | 67 | Ver |
| 1 ago 2026 | Perez Gonzalez, Jose Manuel 2204 | Nainys, Zanas 2321 | 0-1 | C09 French Defense: Tarrasch Variation, Open System, Main Line | Granada Chess Open 26 | 39 | Ver |
| 23 jul 2026 | Nainys, Zanas 2321 | Afonso, Joao Pedro 2042 | 1-0 | A47 Pseudo Queen's Indian Defense | Famalicao Open | 50 | Ver |
| 23 jul 2026 | Gorodetzky, David 2498 | Nainys, Zanas 2321 | 1-0 | C11 French Defense: Steinitz Variation, Boleslavsky Variation | Famalicao Open | 31 | Ver |