| Game | Result | Opening | Date |
|---|---|---|---|
| Sheehan, Ethan (2386) – Koustav Chatterjee (2481) | 1-0 | Four Knights Game: Naroditsky Variation | 2026-09-07 |
| Koustav Chatterjee (2481) – Sethuraman, Sandeep (2464) | 1/2-1/2 | Catalan Opening: Open Defense | 2026-09-07 |
| Koustav Chatterjee (2481) – Altman, Joshua (2248) | 1-0 | Zukertort Opening | 2026-09-06 |
| Jiang, Andrew (2294) – Koustav Chatterjee (2481) | 1/2-1/2 | Italian Game: Classical Variation, Giuoco Pianissimo | 2026-09-06 |
| Schitco, Ivan (2498) – Koustav Chatterjee (2481) | 1/2-1/2 | Catalan Opening: Open Defense, Classical Line | 2026-09-05 |
| Koustav Chatterjee (2481) – Amburgy, Ryan (2288) | 1/2-1/2 | Italian Game: Giuoco Pianissimo, Italian Four Knights Variation | 2026-09-05 |
| Koustav Chatterjee (2481) – Stremavicius, Titas (2554) | 1/2-1/2 | Catalan Opening: Open Defense, Classical Line | 2026-09-04 |
| Luger, Sam (2320) – Koustav Chatterjee (2481) | 1-0 | Indian Defense: Anti-Nimzo-Indian | 2026-09-04 |
| Wang, Tianqi (2363) – Koustav Chatterjee (2481) | 0-1 | Queen's Pawn Game: Colle System, Traditional Colle | 2026-09-03 |
| Koustav Chatterjee (2484) – Isanzhulov, Arystan (2385) | 0-1 | Nimzo-Indian Defense: Normal Variation | 2026-08-09 |
| Koustav Chatterjee (2484) – Isanzhulov, Arystan (2385) | 0-1 | Nimzo-Indian Defense: Normal Variation, Schlechter Defense | 2026-08-09 |
| Kamalidenova, Meruert (2400) – Koustav Chatterjee (2484) | 0-1 | Italian Game: Evans Gambit, Leonhardt Countergambit | 2026-08-09 |
| Gazik, Viktor (2549) – Koustav Chatterjee (2484) | 1/2-1/2 | Ruy Lopez: Classical Variation | 2026-08-08 |
| Koustav Chatterjee (2484) – Kacharava, Nikolozi (2521) | 0-1 | Catalan Opening: Open Defense, Classical Line | 2026-08-08 |
| Ulhaq, Zacky Dhia (2338) – Koustav Chatterjee (2484) | 1/2-1/2 | Queen's Gambit Declined: Ragozin Defense | 2026-08-07 |
| Koustav Chatterjee (2484) – Mariano, Fabian Glen (2312) | 1/2-1/2 | Grünfeld Defense: Stockholm Variation | 2026-08-07 |
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