Calvin John Klaasen
Country
RSA
Birth Year
1987
Gender
M
Title
FT,FIDE Master
FIDE ID
14300133
FIDE rating history
View rating lists
Available Games
Published games available in our archive; coverage varies by tournament. Archive last checked: 2026-10-13 (UTC).
Online games are identified from known tournament names, playing sites and PGN mode. Other games are listed as OTB (over-the-board).
| # | Date | Event | Site | Round | White | Black | Result | Moves | View |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2025-07-29 | Titled Tue 29th Jul Late | chess.com INT | 9 | Calvin John Klaasen | Stepan Papacek | 1/2-1/2 | 39 | Open |
| 2 | 2025-07-29 | Titled Tue 29th Jul Late | chess.com INT | 8 | Gisela Roque Sola | Calvin John Klaasen | 0-1 | 25 | Open |
| 3 | 2025-07-29 | Titled Tue 29th Jul Late | chess.com INT | 7 | Calvin John Klaasen | Casper Liu | 0-1 | 52 | Open |
| 4 | 2025-07-29 | Titled Tue 29th Jul Late | chess.com INT | 6 | Jaan Ehlvest | Calvin John Klaasen | 1-0 | 28 | Open |
| 5 | 2025-07-29 | Titled Tue 29th Jul Late | chess.com INT | 5 | Calvin John Klaasen | Marcel Winkels | 0-1 | 33 | Open |
| 6 | 2025-07-29 | Titled Tue 29th Jul Late | chess.com INT | 4 | Rudolf Jun | Calvin John Klaasen | 1-0 | 35 | Open |
| 7 | 2025-07-29 | Titled Tue 29th Jul Late | chess.com INT | 3 | Calvin John Klaasen | Sandi Stojanovski | 0-1 | 38 | Open |
| 8 | 2025-07-29 | Titled Tue 29th Jul Late | chess.com INT | 2 | Esteban Horacio Deichmann | Calvin John Klaasen | 1-0 | 38 | Open |
| 9 | 2025-07-29 | Titled Tue 29th Jul Late | chess.com INT | 1 | Alexandr E. Volodin | Calvin John Klaasen | 1-0 | 37 | Open |
| 10 | 2025-07-29 | Titled Tue 29th Jul Late | chess.com INT | 11 | Eleni Pica | Calvin John Klaasen | 0-1 | 18 | Open |
| 11 | 2025-07-29 | Titled Tue 29th Jul Late | chess.com INT | 10 | Calvin John Klaasen | Korun Gulamirian | 1-0 | 39 | Open |
| 12 | 2024-12-17 | Titled Tue 17th Dec Early | chess.com INT | 8 | Calvin John Klaasen | Erick Marvin Guevara Sanchez | 1-0 | 66 | Open |
| 13 | 2024-12-17 | Titled Tue 17th Dec Early | chess.com INT | 7 | Maxim Novik | Calvin John Klaasen | 1-0 | 36 | Open |
| 14 | 2024-12-17 | Titled Tue 17th Dec Early | chess.com INT | 6 | Calvin John Klaasen | Luca Silva | 0-1 | 35 | Open |
| 15 | 2024-12-17 | Titled Tue 17th Dec Early | chess.com INT | 5 | Calvin John Klaasen | Mike Sailer | 1-0 | 38 | Open |
| 16 | 2024-12-17 | Titled Tue 17th Dec Early | chess.com INT | 4 | Joshuaede Cappelletto | Calvin John Klaasen | 1-0 | 21 | Open |
| 17 | 2024-12-17 | Titled Tue 17th Dec Early | chess.com INT | 3 | Calvin John Klaasen | Eduardo da Costa Marra | 0-1 | 31 | Open |
| 18 | 2024-12-17 | Titled Tue 17th Dec Early | chess.com INT | 2 | Nikita Shandrygin | Calvin John Klaasen | 1-0 | 36 | Open |
| 19 | 2024-12-17 | Titled Tue 17th Dec Early | chess.com INT | 1 | Aaditya Dhingra | Calvin John Klaasen | 0-1 | 86 | Open |
| 20 | 2023-12-26 | Titled Tue 26th Dec Early | chess.com INT | 8 | Calvin John Klaasen | Eric Dominguez Pons | 0-1 | 39 | Open |
| 21 | 2023-12-26 | Titled Tue 26th Dec Early | chess.com INT | 7 | Calvin John Klaasen | Chanchal Kumer Ghosh | 1-0 | 42 | Open |
| 22 | 2023-12-26 | Titled Tue 26th Dec Early | chess.com INT | 6 | Matfey Yurasov | Calvin John Klaasen | 1-0 | 41 | Open |
| 23 | 2023-12-26 | Titled Tue 26th Dec Early | chess.com INT | 5 | Mauricio Vargas Benavides | Calvin John Klaasen | 0-1 | 34 | Open |
| 24 | 2023-12-26 | Titled Tue 26th Dec Early | chess.com INT | 4 | Calvin John Klaasen | Vasilii Titarov | 0-1 | 21 | Open |
| 25 | 2023-12-26 | Titled Tue 26th Dec Early | chess.com INT | 3 | Calvin John Klaasen | Gizem Olcayoz | 1-0 | 25 | Open |
| 26 | 2022-01-04 | Titled Tuesday 4th Jan | chess.com INT | 9 | Calvin John Klaasen | Fernando Broca Jimenez | 0-1 | 43 | Open |
| 27 | 2022-01-04 | Titled Tuesday 4th Jan | chess.com INT | 8 | Sharvesh Deviprasath | Calvin John Klaasen | 1-0 | 34 | Open |
| 28 | 2022-01-04 | Titled Tuesday 4th Jan | chess.com INT | 7 | Calvin John Klaasen | Prithu Gupta | 1-0 | 29 | Open |
| 29 | 2022-01-04 | Titled Tuesday 4th Jan | chess.com INT | 6 | Artem Omelja | Calvin John Klaasen | 1-0 | 33 | Open |
| 30 | 2022-01-04 | Titled Tuesday 4th Jan | chess.com INT | 5 | Calvin John Klaasen | Eduard Ashiev | 1-0 | 24 | Open |
| 31 | 2022-01-04 | Titled Tuesday 4th Jan | chess.com INT | 4 | Calvin John Klaasen | Nikolai Vlassov | 0-1 | 30 | Open |
| 32 | 2022-01-04 | Titled Tuesday 4th Jan | chess.com INT | 3 | Mike Sailer | Calvin John Klaasen | 0-1 | 39 | Open |
| 33 | 2022-01-04 | Titled Tuesday 4th Jan | chess.com INT | 2 | Calvin John Klaasen | David Paravyan | 0-1 | 25 | Open |
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