Koustav Chatterjee
Country
IND
Birth Year
2003
Gender
M
Title
Grandmaster
FIDE ID
25073060
FIDE Rating
2469
FIDE Rating Graph
FIDE supplement history through 2026-10. Ranking lists update separately.
Available Games
Published games available in our archive; coverage varies by tournament. Archive last checked: 2026-10-02 (UTC).
| # | Date | Event | Site | Round | White | Black | Result | Moves | View |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2026-09-07 | CCCSA Labor Day GM-B 2026 | Charlotte USA | 8.3 | Sheehan,Ethan | Koustav,Chatterjee | 1-0 | 98 | Open |
| 2 | 2026-09-07 | CCCSA Labor Day GM-B 2026 | Charlotte USA | 9.3 | Koustav,Chatterjee | Sethuraman,Sandeep | 1/2-1/2 | 5 | Open |
| 3 | 2026-09-06 | CCCSA Labor Day GM-B 2026 | Charlotte USA | 6.2 | Jiang,Andrew | Koustav,Chatterjee | 1/2-1/2 | 35 | Open |
| 4 | 2026-09-06 | CCCSA Labor Day GM-B 2026 | Charlotte USA | 7.4 | Koustav,Chatterjee | Altman,Joshua | 1-0 | 32 | Open |
| 5 | 2026-09-05 | CCCSA Labor Day GM-B 2026 | Charlotte USA | 5.5 | Koustav,Chatterjee | Amburgy,Ryan | 1/2-1/2 | 24 | Open |
| 6 | 2026-09-05 | CCCSA Labor Day GM-B 2026 | Charlotte USA | 4.3 | Schitco,Ivan | Koustav,Chatterjee | 1/2-1/2 | 12 | Open |
| 7 | 2026-09-04 | CCCSA Labor Day GM-B 2026 | Charlotte USA | 2.2 | Koustav,Chatterjee | Stremavicius,T | 1/2-1/2 | 11 | Open |
| 8 | 2026-09-04 | CCCSA Labor Day GM-B 2026 | Charlotte USA | 3.5 | Luger,Sam | Koustav,Chatterjee | 1-0 | 65 | Open |
| 9 | 2026-09-03 | CCCSA Labor Day GM-B 2026 | Charlotte USA | 1.5 | Wang,Tianqi | Koustav,Chatterjee | 0-1 | 35 | Open |
| 10 | 2026-08-09 | FIDE World Uni Teams KO | Almaty KAZ | 3.3 | Koustav,Chatterjee | Isanzhulov,Arystan | 0-1 | 32 | Open |
| 11 | 2026-08-09 | FIDE World Uni Teams KO | Almaty KAZ | 3.2 | Koustav,Chatterjee | Isanzhulov,Arystan | 0-1 | 47 | Open |
| 12 | 2026-08-09 | FIDE World Uni Teams KO | Almaty KAZ | 3.1 | Kamalidenova,Meruert | Koustav,Chatterjee | 0-1 | 55 | Open |
| 13 | 2026-08-08 | FIDE World Uni Teams KO | Almaty KAZ | 2.2 | Gazik,Viktor | Koustav,Chatterjee | 1/2-1/2 | 23 | Open |
| 14 | 2026-08-08 | FIDE World Uni Teams KO | Almaty KAZ | 2.1 | Koustav,Chatterjee | Kacharava,Nikolozi | 0-1 | 49 | Open |
| 15 | 2026-08-07 | FIDE World Uni Teams KO | Almaty KAZ | 1.2 | Koustav,Chatterjee | Mariano,Fabian Glen | 1/2-1/2 | 26 | Open |
| 16 | 2026-08-07 | FIDE World Uni Teams KO | Almaty KAZ | 1.1 | Ulhaq,Zacky Dhia | Koustav,Chatterjee | 1/2-1/2 | 41 | Open |
| 17 | 2026-08-06 | FIDE World Uni Teams C | Almaty KAZ | 5.22 | Alimbetov,Dias | Koustav,Chatterjee | 0-1 | 40 | Open |
| 18 | 2026-08-05 | FIDE World Uni Teams C | Almaty KAZ | 3.19 | Tsarsitalidis,Konstantinos | Koustav,Chatterjee | 0-1 | 49 | Open |
| 19 | 2026-08-05 | FIDE World Uni Teams C | Almaty KAZ | 4.19 | Koustav,Chatterjee | Tsarsitalidis,Konstantinos | 1-0 | 60 | Open |
| 20 | 2026-08-04 | FIDE World Uni Teams C | Almaty KAZ | 1.19 | Arjun Gupta | Koustav,Chatterjee | 0-1 | 43 | Open |
| 21 | 2026-08-04 | FIDE World Uni Teams C | Almaty KAZ | 2.19 | Koustav,Chatterjee | Arjun Gupta | 1-0 | 37 | Open |
| 22 | 2026-01-19 | NY Marshall Winter GM B | New York USA | 9.4 | Ivan Schitco | Koustav Chatterjee | 1/2-1/2 | 29 | Open |
| 23 | 2026-01-19 | NY Marshall Winter GM B | New York USA | 8.3 | Koustav Chatterjee | John Ludwig | 1/2-1/2 | 32 | Open |
| 24 | 2026-01-18 | NY Marshall Winter GM B | New York USA | 7.3 | Jakub Fus | Koustav Chatterjee | 1/2-1/2 | 24 | Open |
| 25 | 2026-01-18 | NY Marshall Winter GM B | New York USA | 6.4 | Koustav Chatterjee | Eshaan Hebbar | 1/2-1/2 | 53 | Open |
| 26 | 2026-01-17 | NY Marshall Winter GM B | New York USA | 5.2 | Avi Harrison Kaplan | Koustav Chatterjee | 1/2-1/2 | 15 | Open |
| 27 | 2026-01-17 | NY Marshall Winter GM B | New York USA | 4.5 | Koustav Chatterjee | Bryan Enming Lin | 1-0 | 38 | Open |
| 28 | 2026-01-16 | NY Marshall Winter GM B | New York USA | 3.1 | Koustav Chatterjee | Aleksandr Lenderman | 1/2-1/2 | 23 | Open |
| 29 | 2026-01-15 | NY Marshall Winter GM B | New York USA | 2.5 | Rose Atwell | Koustav Chatterjee | 1/2-1/2 | 49 | Open |
| 30 | 2026-01-14 | NY Marshall Winter GM B | New York USA | 1.2 | Koustav Chatterjee | L M S T De Silva | 1/2-1/2 | 35 | Open |
| 31 | 2026-01-05 | Pan-Am Intercollegiate | Oak Brook, IL USA | 6.16 | Koustav Chatterjee | Samuel Zhang | 1/2-1/2 | 44 | Open |
| 32 | 2026-01-04 | Pan-Am Intercollegiate | Oak Brook, IL USA | 5.12 | Koustav Chatterjee | Christopher Shen | 1/2-1/2 | 37 | Open |
| 33 | 2026-01-04 | Pan-Am Intercollegiate | Oak Brook, IL USA | 4.16 | Rohit Guha | Koustav Chatterjee | 0-1 | 33 | Open |
| 34 | 2026-01-03 | Pan-Am Intercollegiate | Oak Brook, IL USA | 3.4 | Koustav Chatterjee | Francesco Sonis | 1/2-1/2 | 31 | Open |
| 35 | 2026-01-03 | Pan-Am Intercollegiate | Oak Brook, IL USA | 2.16 | Ryan M Beh | Koustav Chatterjee | 0-1 | 27 | Open |
| 36 | 2026-01-02 | Pan-Am Intercollegiate | Oak Brook, IL USA | 1.16 | Koustav Chatterjee | Jungmin Shinn | 1-0 | 37 | Open |
| 37 | 2025-12-30 | 35th North American Open | Las Vegas USA | 9.4 | Koustav Chatterjee | Alexander Katz | 1/2-1/2 | 45 | Open |
| 38 | 2025-12-29 | 35th North American Open | Las Vegas USA | 8.2 | Mukhammadali Abdurakhmonov | Koustav Chatterjee | 1/2-1/2 | 8 | Open |
| 39 | 2025-12-29 | 35th North American Open | Las Vegas USA | 7.1 | Koustav Chatterjee | Abdimalik Abdisalimov | 1/2-1/2 | 31 | Open |
| 40 | 2025-12-28 | 35th North American Open | Las Vegas USA | 6.1 | Ehsan Ghaem Maghami | Koustav Chatterjee | 1/2-1/2 | 13 | Open |
| 41 | 2025-12-28 | 35th North American Open | Las Vegas USA | 5.3 | Koustav Chatterjee | Simon Lamaze | 1-0 | 40 | Open |
| 42 | 2025-12-27 | 35th North American Open | Las Vegas USA | 4.8 | Isaac Wang | Koustav Chatterjee | 0-1 | 58 | Open |
| 43 | 2025-12-27 | 35th North American Open | Las Vegas USA | 3.12 | Koustav Chatterjee | Sila Caglar | 1-0 | 33 | Open |
| 44 | 2025-12-26 | 35th North American Open | Las Vegas USA | 2.8 | Jingyun (ryan) Yang | Koustav Chatterjee | 1/2-1/2 | 18 | Open |
| 45 | 2025-11-30 | US Chess Masters 2025 | Charlotte USA | 9.17 | Koustav Chatterjee | Sergey Erenburg | 1/2-1/2 | 52 | Open |
| 46 | 2025-11-30 | US Chess Masters 2025 | Charlotte USA | 8.8 | Jianchao Zhou | Koustav Chatterjee | 1/2-1/2 | 28 | Open |
| 47 | 2025-11-29 | US Chess Masters 2025 | Charlotte USA | 7.3 | Shawn Rodrigue-Lemieux | Koustav Chatterjee | 1-0 | 51 | Open |
| 48 | 2025-11-29 | US Chess Masters 2025 | Charlotte USA | 6.1 | Koustav Chatterjee | Andrew Hong | 1/2-1/2 | 23 | Open |
| 49 | 2025-11-28 | US Chess Masters 2025 | Charlotte USA | 5.1 | Koustav Chatterjee | Jeffery Xiong | 1/2-1/2 | 32 | Open |
| 50 | 2025-11-28 | US Chess Masters 2025 | Charlotte USA | 4.4 | David Brodsky | Koustav Chatterjee | 0-1 | 52 | Open |
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