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
101 2022-01-04 Titled Tuesday 4th Jan chess.com INT 4 Calvin John Klaasen Nikolai Vlassov 0-1 30 Open
102 2022-01-04 Titled Tuesday 4th Jan chess.com INT 3 Mike Sailer Calvin John Klaasen 0-1 39 Open
103 2022-01-04 Titled Tuesday 4th Jan chess.com INT 2 Calvin John Klaasen David Paravyan 0-1 25 Open
104 2019-12-17 ch-RSA 2019 Cape Town RSA 11.5 Calvin John Klaasen Benjamin Vincent Hercules 1/2-1/2 29 Open
105 2019-12-16 ch-RSA 2019 Cape Town RSA 10.2 Michael James Calvin John Klaasen 0-1 39 Open
106 2019-12-15 ch-RSA 2019 Cape Town RSA 9.6 Calvin John Klaasen Roland Bezuidenhout 0-1 40 Open
107 2019-12-14 ch-RSA 2019 Cape Town RSA 8.1 Paul Gluckman Calvin John Klaasen 1-0 55 Open
108 2019-12-11 ch-RSA 2019 Cape Town RSA 5.5 Matt Pon Calvin John Klaasen 1/2-1/2 21 Open
109 2019-12-10 ch-RSA 2019 Cape Town RSA 4.3 Calvin John Klaasen Kenneth Terence Solomon 0-1 38 Open
110 2019-12-09 ch-RSA 2019 Cape Town RSA 3.4 Daniel Barrish Calvin John Klaasen 1-0 35 Open
111 2019-12-08 ch-RSA 2019 Cape Town RSA 2.4 Calvin John Klaasen Keith Khumalo 1-0 59 Open
112 2019-12-07 ch-RSA 2019 Cape Town RSA 1.3 Mohamed Ozayr Bhawoodien Calvin John Klaasen 1/2-1/2 37 Open
113 2019-07-16 ch-Africa 2019 Hammamet TUN 8.15 Leykun Mesfin Calvin John Klaasen 0-1 59 Open
114 2019-07-15 ch-Africa 2019 Hammamet TUN 7.17 Calvin John Klaasen Sasha WINSTON-ONYIAH 1-0 52 Open
115 2019-07-13 ch-Africa 2019 Hammamet TUN 5.1 Calvin John Klaasen Essam El Gindy 0-1 71 Open
116 2019-07-12 ch-Africa 2019 Hammamet TUN 4.9 Douglas D Munenga Calvin John Klaasen 1-0 58 Open
117 2019-07-11 ch-Africa 2019 Hammamet TUN 3.4 Calvin John Klaasen Adham Fawzy 1/2-1/2 57 Open
118 2019-04-22 Capablanca Festival IM Pretoria RSA 9.5 Calvin John Klaasen Sahaj Grover 0-1 46 Open
119 2019-04-22 Capablanca Festival IM Pretoria RSA 8.1 Dante M Beukes Calvin John Klaasen 0-1 35 Open
120 2019-04-21 Capablanca Festival IM Pretoria RSA 7.5 Joseph Mwale Calvin John Klaasen 1/2-1/2 25 Open
121 2019-04-21 Capablanca Festival IM Pretoria RSA 6.2 Calvin John Klaasen Roland Bezuidenhout 1/2-1/2 60 Open
122 2019-04-20 Capablanca Festival IM Pretoria RSA 5.4 Keith Khumalo Calvin John Klaasen 1/2-1/2 64 Open
123 2019-04-20 Capablanca Festival IM Pretoria RSA 4.3 Calvin John Klaasen Daniel Cawdery 1/2-1/2 8 Open
124 2019-04-19 Capablanca Festival IM Pretoria RSA 3.3 Rodwell Makoto Calvin John Klaasen 1/2-1/2 33 Open
125 2019-04-19 Capablanca Festival IM Pretoria RSA 2.4 Calvin John Klaasen Daniel Barrish 1/2-1/2 73 Open
126 2019-04-18 Capablanca Festival IM Pretoria RSA 1.2 Benjamin Vincent Hercules Calvin John Klaasen 0-1 37 Open
127 2018-10-05 43rd Olympiad 2018 Batumi GEO 11.42 Maher Ayyad Calvin John Klaasen 0-1 43 Open
128 2018-10-04 43rd Olympiad 2018 Batumi GEO 10.33 Calvin John Klaasen Guillermo Vazquez 0-1 63 Open
129 2018-10-02 43rd Olympiad 2018 Batumi GEO 8.36 Calvin John Klaasen Teerachoti Prasitsoonthorn 1-0 40 Open
130 2018-10-01 43rd Olympiad 2018 Batumi GEO 7.13 Calvin John Klaasen Muhammed Batuhan Dastan 1-0 36 Open
131 2018-09-30 43rd Olympiad 2018 Batumi GEO 6.4 Omran Al Hosani Calvin John Klaasen 0-1 50 Open
132 2018-09-27 43rd Olympiad 2018 Batumi GEO 4.58 Ras Malaku Lorne Calvin John Klaasen 1/2-1/2 100 Open
133 2018-09-26 43rd Olympiad 2018 Batumi GEO 3.25 Calvin John Klaasen Petr Kostenko 1-0 95 Open
134 2018-09-25 43rd Olympiad 2018 Batumi GEO 2.17 Jure Skoberne Calvin John Klaasen 1-0 25 Open
135 2018-09-24 43rd Olympiad 2018 Batumi GEO 1.85 Calvin John Klaasen Samuel Gabius Britus 1-0 55 Open
136 2018-07-03 ch-Commonwealth 2018 New Delhi IND 9.18 Chudasama Ankit Calvin John Klaasen 0-1 48 Open
137 2018-07-02 ch-Commonwealth 2018 New Delhi IND 8.21 Calvin John Klaasen Paul Gluckman 1-0 40 Open
138 2018-07-01 ch-Commonwealth 2018 New Delhi IND 7.23 Calvin John Klaasen Mukherjee Arpita 1/2-1/2 117 Open
139 2018-06-29 ch-Commonwealth 2018 New Delhi IND 4.2 Sreeshwan Maralakshikari Calvin John Klaasen 1-0 38 Open
140 2018-05-01 Capablanca Festival GM Pretoria RSA 9.2 Calvin John Klaasen Milanto Harifidy Ralison 1/2-1/2 43 Open
141 2018-04-30 Capablanca Festival GM Pretoria RSA 8.4 Aleksa Strikovic Calvin John Klaasen 1/2-1/2 16 Open
142 2018-04-30 Capablanca Festival GM Pretoria RSA 7.3 Calvin John Klaasen Alejandro Hoffman 1/2-1/2 11 Open
143 2018-04-29 Capablanca Festival GM Pretoria RSA 6.3 Jack Van Zyl-Rudd Calvin John Klaasen 1/2-1/2 31 Open
144 2018-04-28 Capablanca Festival GM Pretoria RSA 5.4 Calvin John Klaasen Bernardo Roselli Mailhe 1/2-1/2 60 Open
145 2018-04-28 Capablanca Festival GM Pretoria RSA 4.2 Daniel Cawdery Calvin John Klaasen 1/2-1/2 20 Open
146 2018-04-27 Capablanca Festival GM Pretoria RSA 3.5 Calvin John Klaasen Sahaj Grover 0-1 30 Open
147 2018-04-27 Capablanca Festival GM Pretoria RSA 2.1 Andrew Kayonde Calvin John Klaasen 1/2-1/2 48 Open
148 2018-04-26 Capablanca Festival GM Pretoria RSA 1.5 Watu Kobese Calvin John Klaasen 1-0 34 Open
149 2018-03-18 Boardwalk Pearson IM 2018 Port Elizabeth RSA 9.5 Calvin John Klaasen Geoffrey Luanja 0-1 37 Open
150 2018-03-17 Boardwalk Pearson IM 2018 Port Elizabeth RSA 8.1 Donaldo Paiva Calvin John Klaasen 1-0 51 Open

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