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 | 2025-04-21 | Cape Gambit Inv 2025 | Cape Town RSA | 7.2 | Calvin John Klaasen | Mohamed Ozayr Bhawoodien | 1-0 | 35 | Open |
| 2 | 2025-04-20 | Cape Gambit Inv 2025 | Cape Town RSA | 6.2 | Matfey Rogov | Calvin John Klaasen | 1-0 | 31 | Open |
| 3 | 2025-04-20 | Cape Gambit Inv 2025 | Cape Town RSA | 5.3 | Calvin John Klaasen | Charlton Mnyasta | 1/2-1/2 | 62 | Open |
| 4 | 2025-04-19 | Cape Gambit Inv 2025 | Cape Town RSA | 4.1 | Colomban Vitoux | Calvin John Klaasen | 1-0 | 77 | Open |
| 5 | 2025-04-19 | Cape Gambit Inv 2025 | Cape Town RSA | 3.4 | Jan Karsten | Calvin John Klaasen | 1-0 | 50 | Open |
| 6 | 2025-04-18 | Cape Gambit Inv 2025 | Cape Town RSA | 2.2 | Calvin John Klaasen | Banele Mhango | 1-0 | 46 | Open |
| 7 | 2025-04-18 | Cape Gambit Inv 2025 | Cape Town RSA | 1.3 | Watu Kobese | Calvin John Klaasen | 1/2-1/2 | 57 | Open |
| 8 | 2025-01-08 | Cape Town Masters 2025 | Cape Town RSA | 4.4 | Ethan Samuels | Calvin John Klaasen | 0-1 | 53 | Open |
| 9 | 2025-01-07 | Cape Town Masters 2025 | Cape Town RSA | 3.4 | Calvin John Klaasen | Andre Schutte | 1/2-1/2 | 52 | Open |
| 10 | 2025-01-06 | Cape Town Masters 2025 | Cape Town RSA | 2.6 | Calvin John Klaasen | Eugene Milford | 1-0 | 3 | Open |
| 11 | 2025-01-06 | Cape Town Masters 2025 | Cape Town RSA | 1.7 | Minenhle Junior Mncwabe | Calvin John Klaasen | 0-1 | 53 | Open |
| 12 | 2024-04-02 | ch-RSA 2024 | Cape Town RSA | 11.6 | Jan Karsten | Calvin John Klaasen | 1-0 | 36 | Open |
| 13 | 2024-04-01 | ch-RSA 2024 | Cape Town RSA | 10.2 | Calvin John Klaasen | Jacob Dumisani Mnguni | 1/2-1/2 | 17 | Open |
| 14 | 2024-03-31 | ch-RSA 2024 | Cape Town RSA | 9.5 | Daniel Barrish | Calvin John Klaasen | 1/2-1/2 | 22 | Open |
| 15 | 2024-03-31 | ch-RSA 2024 | Cape Town RSA | 8.3 | Calvin John Klaasen | Caleb Levi Levitan | 1/2-1/2 | 15 | Open |
| 16 | 2024-03-30 | ch-RSA 2024 | Cape Town RSA | 7.4 | Watu Kobese | Calvin John Klaasen | 1/2-1/2 | 29 | Open |
| 17 | 2024-03-29 | ch-RSA 2024 | Cape Town RSA | 6.4 | Calvin John Klaasen | Daniel Cawdery | 1/2-1/2 | 17 | Open |
| 18 | 2024-03-29 | ch-RSA 2024 | Cape Town RSA | 5.3 | Lutho Mfazwe | Calvin John Klaasen | 0-1 | 41 | Open |
| 19 | 2024-03-28 | ch-RSA 2024 | Cape Town RSA | 4.5 | Calvin John Klaasen | Banele Mhango | 1/2-1/2 | 44 | Open |
| 20 | 2024-03-27 | ch-RSA 2024 | Cape Town RSA | 3.2 | Keith Khumalo | Calvin John Klaasen | 1/2-1/2 | 55 | Open |
| 21 | 2024-03-26 | ch-RSA 2024 | Cape Town RSA | 2.6 | Calvin John Klaasen | Charlton Mnyasta | 0-1 | 38 | Open |
| 22 | 2024-03-25 | ch-RSA 2024 | Cape Town RSA | 1.1 | Calvin John Klaasen | Michael Simpson | 1-0 | 45 | Open |
| 23 | 2024-01-07 | Cape Town Masters 2024 | Cape Town RSA | 9.3 | Watu Kobese | Calvin John Klaasen | 1/2-1/2 | 56 | Open |
| 24 | 2024-01-06 | Cape Town Masters 2024 | Cape Town RSA | 8.3 | Calvin John Klaasen | Charlton Mnyasta | 1-0 | 38 | Open |
| 25 | 2024-01-06 | Cape Town Masters 2024 | Cape Town RSA | 7.3 | Matfey Rogov | Calvin John Klaasen | 1/2-1/2 | 43 | Open |
| 26 | 2024-01-05 | Cape Town Masters 2024 | Cape Town RSA | 6.4 | Calvin John Klaasen | Edward Potgieter | 1/2-1/2 | 53 | Open |
| 27 | 2024-01-05 | Cape Town Masters 2024 | Cape Town RSA | 5.5 | Reegan Palmer | Calvin John Klaasen | 0-1 | 39 | Open |
| 28 | 2024-01-04 | Cape Town Masters 2024 | Cape Town RSA | 4.4 | Calvin John Klaasen | Tezihano Mnyasta | 1/2-1/2 | 34 | Open |
| 29 | 2023-10-04 | Moja Open 2023 | Kimberley RSA | 9.4 | Tyler Nevin | Calvin John Klaasen | 1-0 | 13 | Open |
| 30 | 2023-10-03 | Moja Open 2023 | Kimberley RSA | 7.6 | Calvin John Klaasen | Michael Simpson | 0-1 | 30 | Open |
| 31 | 2023-10-02 | Moja Open 2023 | Kimberley RSA | 6.5 | Lyndon Bouah | Calvin John Klaasen | 1/2-1/2 | 49 | Open |
| 32 | 2023-10-02 | Moja Open 2023 | Kimberley RSA | 5.2 | Calvin John Klaasen | Banele Mhango | 0-1 | 39 | Open |
| 33 | 2023-10-01 | Moja Open 2023 | Kimberley RSA | 4.3 | Watu Kobese | Calvin John Klaasen | 1/2-1/2 | 26 | Open |
| 34 | 2023-10-01 | Moja Open 2023 | Kimberley RSA | 3.4 | Calvin John Klaasen | James Dinham | 1-0 | 45 | Open |
| 35 | 2023-09-30 | Moja Open 2023 | Kimberley RSA | 2.5 | Karabo Teeke | Calvin John Klaasen | 0-1 | 59 | Open |
| 36 | 2023-06-11 | CKC Invitational Masters | Cape Town RSA | 5.1 | Jan Karsten | Calvin John Klaasen | 1/2-1/2 | 62 | Open |
| 37 | 2023-06-11 | CKC Invitational Masters | Cape Town RSA | 4.1 | Calvin John Klaasen | Matfey Rogov | 1-0 | 39 | Open |
| 38 | 2023-06-10 | CKC Invitational Masters | Cape Town RSA | 3.1 | Jan Boder | Calvin John Klaasen | 1/2-1/2 | 71 | Open |
| 39 | 2023-06-10 | CKC Invitational Masters | Cape Town RSA | 2.1 | Calvin John Klaasen | Daniel Barrish | 1/2-1/2 | 61 | Open |
| 40 | 2023-06-09 | CKC Invitational Masters | Cape Town RSA | 1.1 | Yovann Gatineau | Calvin John Klaasen | 1-0 | 38 | Open |
| 41 | 2023-05-13 | ch-Africa 2023 | Giza EGY | 9.9 | Calvin John Klaasen | Sameh Sadek | 1-0 | 38 | Open |
| 42 | 2023-05-12 | ch-Africa 2023 | Giza EGY | 8.9 | Khaled Abdel Razik | Calvin John Klaasen | 1-0 | 41 | Open |
| 43 | 2023-01-08 | Cape Town Masters IM 2023 | Cape Town RSA | 9.4 | Adham Fawzy | Calvin John Klaasen | 1-0 | 41 | Open |
| 44 | 2023-01-07 | Cape Town Masters IM 2023 | Cape Town RSA | 8.3 | Calvin John Klaasen | Reuben Salimu | 1-0 | 42 | Open |
| 45 | 2023-01-07 | Cape Town Masters IM 2023 | Cape Town RSA | 7.3 | Jan Karsten | Calvin John Klaasen | 0-1 | 63 | Open |
| 46 | 2023-01-06 | Cape Town Masters IM 2023 | Cape Town RSA | 6.4 | Calvin John Klaasen | Daniel Cawdery | 1/2-1/2 | 10 | Open |
| 47 | 2023-01-06 | Cape Town Masters IM 2023 | Cape Town RSA | 5.2 | Mohamed Ozayr Bhawoodien | Calvin John Klaasen | 0-1 | 26 | Open |
| 48 | 2023-01-05 | Cape Town Masters IM 2023 | Cape Town RSA | 4.5 | Calvin John Klaasen | Daniel Barrish | 0-1 | 52 | Open |
| 49 | 2023-01-05 | Cape Town Masters IM 2023 | Cape Town RSA | 3.5 | Calvin John Klaasen | Andrew Kayonde | 0-1 | 75 | Open |
| 50 | 2023-01-04 | Cape Town Masters IM 2023 | Cape Town RSA | 2.5 | Watu Kobese | Calvin John Klaasen | 1/2-1/2 | 19 | Open |
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