Calvin John Klaasen

Country

RSA

Birth Year

1987

Gender

M

Title

FT,FIDE Master

FIDE ID

14300133

FIDE ratings

2177

Classical

Published FIDE

2167

Rapid

Published FIDE

2270

Blitz

Published FIDE

Official classical ranks

World rank
#9524
National rank · RSA
#19

Active players · Oct 2026 FIDE list ⓘ

FIDE rating history

Highest recorded rating
2320 Jan 2018
Recorded years
2007–2026
Archived games
253

Based on available monthly lists and saved games.

FIDE rating history

Published rating lists through Oct 2026.

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
51 2023-12-26 Titled Tue 26th Dec Early chess.com INT 5 Mauricio Vargas Benavides Calvin John Klaasen 0-1 34 Open
52 2023-12-26 Titled Tue 26th Dec Early chess.com INT 4 Calvin John Klaasen Vasilii Titarov 0-1 21 Open
53 2023-12-26 Titled Tue 26th Dec Early chess.com INT 3 Calvin John Klaasen Gizem Olcayoz 1-0 25 Open
54 2023-10-04 Moja Open 2023 Kimberley RSA 9.4 Tyler Nevin Calvin John Klaasen 1-0 13 Open
55 2023-10-03 Moja Open 2023 Kimberley RSA 7.6 Calvin John Klaasen Michael Simpson 0-1 30 Open
56 2023-10-02 Moja Open 2023 Kimberley RSA 6.5 Lyndon Bouah Calvin John Klaasen 1/2-1/2 49 Open
57 2023-10-02 Moja Open 2023 Kimberley RSA 5.2 Calvin John Klaasen Banele Mhango 0-1 39 Open
58 2023-10-01 Moja Open 2023 Kimberley RSA 4.3 Watu Kobese Calvin John Klaasen 1/2-1/2 26 Open
59 2023-10-01 Moja Open 2023 Kimberley RSA 3.4 Calvin John Klaasen James Dinham 1-0 45 Open
60 2023-09-30 Moja Open 2023 Kimberley RSA 2.5 Karabo Teeke Calvin John Klaasen 0-1 59 Open
61 2023-06-11 CKC Invitational Masters Cape Town RSA 5.1 Jan Karsten Calvin John Klaasen 1/2-1/2 62 Open
62 2023-06-11 CKC Invitational Masters Cape Town RSA 4.1 Calvin John Klaasen Matfey Rogov 1-0 39 Open
63 2023-06-10 CKC Invitational Masters Cape Town RSA 3.1 Jan Boder Calvin John Klaasen 1/2-1/2 71 Open
64 2023-06-10 CKC Invitational Masters Cape Town RSA 2.1 Calvin John Klaasen Daniel Barrish 1/2-1/2 61 Open
65 2023-06-09 CKC Invitational Masters Cape Town RSA 1.1 Yovann Gatineau Calvin John Klaasen 1-0 38 Open
66 2023-05-13 ch-Africa 2023 Giza EGY 9.9 Calvin John Klaasen Sameh Sadek 1-0 38 Open
67 2023-05-12 ch-Africa 2023 Giza EGY 8.9 Khaled Abdel Razik Calvin John Klaasen 1-0 41 Open
68 2023-01-08 Cape Town Masters IM 2023 Cape Town RSA 9.4 Adham Fawzy Calvin John Klaasen 1-0 41 Open
69 2023-01-07 Cape Town Masters IM 2023 Cape Town RSA 8.3 Calvin John Klaasen Reuben Salimu 1-0 42 Open
70 2023-01-07 Cape Town Masters IM 2023 Cape Town RSA 7.3 Jan Karsten Calvin John Klaasen 0-1 63 Open
71 2023-01-06 Cape Town Masters IM 2023 Cape Town RSA 6.4 Calvin John Klaasen Daniel Cawdery 1/2-1/2 10 Open
72 2023-01-06 Cape Town Masters IM 2023 Cape Town RSA 5.2 Mohamed Ozayr Bhawoodien Calvin John Klaasen 0-1 26 Open
73 2023-01-05 Cape Town Masters IM 2023 Cape Town RSA 4.5 Calvin John Klaasen Daniel Barrish 0-1 52 Open
74 2023-01-05 Cape Town Masters IM 2023 Cape Town RSA 3.5 Calvin John Klaasen Andrew Kayonde 0-1 75 Open
75 2023-01-04 Cape Town Masters IM 2023 Cape Town RSA 2.5 Watu Kobese Calvin John Klaasen 1/2-1/2 19 Open
76 2023-01-04 Cape Town Masters IM 2023 Cape Town RSA 1.2 Calvin John Klaasen Providence Oatlhotse 0-1 58 Open
77 2022-07-17 South African Open 2022 Cape Town RSA 11.1 Calvin John Klaasen Michael Simpson 1-0 40 Open
78 2022-07-16 South African Open 2022 Cape Town RSA 9.2 Calvin John Klaasen Dante M Beukes 0-1 48 Open
79 2022-07-16 South African Open 2022 Cape Town RSA 10.5 Andreas de Jager Calvin John Klaasen 0-1 64 Open
80 2022-07-15 South African Open 2022 Cape Town RSA 8.4 Calvin John Klaasen Kenneth Sean Willenberg 1-0 21 Open
81 2022-07-13 South African Open 2022 Cape Town RSA 7.1 Daniel Cawdery Calvin John Klaasen 1-0 26 Open
82 2022-07-12 South African Open 2022 Cape Town RSA 6.4 Justin Barend Wilken Calvin John Klaasen 0-1 37 Open
83 2022-07-11 South African Open 2022 Cape Town RSA 5.5 Calvin John Klaasen Xolani Cebo Mathebula 1-0 64 Open
84 2022-07-10 South African Open 2022 Cape Town RSA 4.9 Reegan Palmer Calvin John Klaasen 0-1 51 Open
85 2022-07-10 South African Open 2022 Cape Town RSA 3.8 Calvin John Klaasen Minenhle Junior Mncwabe 1/2-1/2 50 Open
86 2022-07-09 South African Open 2022 Cape Town RSA 2.5 Albrecht Van Zyl Calvin John Klaasen 1/2-1/2 41 Open
87 2022-07-09 South African Open 2022 Cape Town RSA 1.5 Calvin John Klaasen Clayton Macheka 1-0 50 Open
88 2022-05-13 ch-RSA 2022 Cape Town RSA 8.4 Kenneth Sean Willenberg Calvin John Klaasen 0-1 40 Open
89 2022-05-12 ch-RSA 2022 Cape Town RSA 7.1 Calvin John Klaasen Khanya Mazibuko 1-0 56 Open
90 2022-05-11 ch-RSA 2022 Cape Town RSA 6.3 Daniel Barrish Calvin John Klaasen 1/2-1/2 77 Open
91 2022-05-10 ch-RSA 2022 Cape Town RSA 5.2 Calvin John Klaasen Watu Kobese 0-1 41 Open
92 2022-05-09 ch-RSA 2022 Cape Town RSA 4.2 Daniel Cawdery Calvin John Klaasen 1-0 34 Open
93 2022-05-08 ch-RSA 2022 Cape Town RSA 3.3 Calvin John Klaasen Shabir Hussain Bhawoodien 1/2-1/2 57 Open
94 2022-05-08 ch-RSA 2022 Cape Town RSA 2.1 Banele Mhango Calvin John Klaasen 1-0 74 Open
95 2022-05-07 ch-RSA 2022 Cape Town RSA 1.4 Calvin John Klaasen Kenneth Terence Solomon 1/2-1/2 41 Open
96 2022-01-04 Titled Tuesday 4th Jan chess.com INT 9 Calvin John Klaasen Fernando Broca Jimenez 0-1 43 Open
97 2022-01-04 Titled Tuesday 4th Jan chess.com INT 8 Sharvesh Deviprasath Calvin John Klaasen 1-0 34 Open
98 2022-01-04 Titled Tuesday 4th Jan chess.com INT 7 Calvin John Klaasen Prithu Gupta 1-0 29 Open
99 2022-01-04 Titled Tuesday 4th Jan chess.com INT 6 Artem Omelja Calvin John Klaasen 1-0 33 Open
100 2022-01-04 Titled Tuesday 4th Jan chess.com INT 5 Calvin John Klaasen Eduard Ashiev 1-0 24 Open

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