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
151 2018-03-16 Boardwalk Pearson IM 2018 Port Elizabeth RSA 7.5 Sahaj Grover Calvin John Klaasen 1-0 55 Open
152 2018-03-15 Boardwalk Pearson IM 2018 Port Elizabeth RSA 6.2 Calvin John Klaasen Daniel Cawdery 1/2-1/2 9 Open
153 2018-03-15 Boardwalk Pearson IM 2018 Port Elizabeth RSA 5.4 David Silva Calvin John Klaasen 1/2-1/2 49 Open
154 2018-03-14 Boardwalk Pearson IM 2018 Port Elizabeth RSA 4.3 Calvin John Klaasen Providence Oatlhotse 1/2-1/2 70 Open
155 2018-03-13 Boardwalk Pearson IM 2018 Port Elizabeth RSA 3.3 Jack Van Zyl-Rudd Calvin John Klaasen 1-0 48 Open
156 2018-03-13 Boardwalk Pearson IM 2018 Port Elizabeth RSA 2.4 Calvin John Klaasen Rodwell Makoto 1/2-1/2 39 Open
157 2018-03-12 Boardwalk Pearson IM 2018 Port Elizabeth RSA 1.3 Joseph Mwale Calvin John Klaasen 1/2-1/2 83 Open
158 2017-12-19 ch-RSA 2017 Cape Town RSA 11.3 Calvin John Klaasen Jacob Dumisani Mnguni 1-0 33 Open
159 2017-12-18 ch-RSA 2017 Cape Town RSA 10.4 Donovan Van den Heever Calvin John Klaasen 1/2-1/2 25 Open
160 2017-12-17 ch-RSA 2017 Cape Town RSA 9.4 Calvin John Klaasen Johannes Manyedi Mabusela 1/2-1/2 49 Open
161 2017-12-16 ch-RSA 2017 Cape Town RSA 8.3 Daniel Barrish Calvin John Klaasen 1/2-1/2 29 Open
162 2017-12-15 ch-RSA 2017 Cape Town RSA 7.5 Calvin John Klaasen Charles De Villiers 1/2-1/2 45 Open
163 2017-12-14 ch-RSA 2017 Cape Town RSA 6.2 Watu Kobese Calvin John Klaasen 1/2-1/2 18 Open
164 2017-12-13 ch-RSA 2017 Cape Town RSA 5.6 Calvin John Klaasen Dennis Ovcina 1/2-1/2 22 Open
165 2017-12-12 ch-RSA 2017 Cape Town RSA 4.1 Mohamed Ozayr Bhawoodien Calvin John Klaasen 0-1 27 Open
166 2017-12-11 ch-RSA 2017 Cape Town RSA 3.6 Benjamin Vincent Hercules Calvin John Klaasen 0-1 54 Open
167 2017-12-10 ch-RSA 2017 Cape Town RSA 2.2 Calvin John Klaasen Ryan Pierre Van Rensburg 1/2-1/2 34 Open
168 2017-12-09 ch-RSA 2017 Cape Town RSA 1.5 Kgaugelo Mosetlhe Calvin John Klaasen 0-1 40 Open
169 2017-05-01 PSS IM Norm 2017 Johannesburg RSA 9.5 Jha Sriram Calvin John Klaasen 1/2-1/2 25 Open
170 2017-04-30 PSS IM Norm 2017 Johannesburg RSA 8.2 Calvin John Klaasen Sahaj Grover 0-1 41 Open
171 2017-04-30 PSS IM Norm 2017 Johannesburg RSA 7.4 Rodwell Makoto Calvin John Klaasen 1/2-1/2 18 Open
172 2017-04-29 PSS IM Norm 2017 Johannesburg RSA 6.3 Calvin John Klaasen Spencer Masango 1-0 39 Open
173 2017-04-28 PSS IM Norm 2017 Johannesburg RSA 5.3 Kgaugelo Mosetlhe Calvin John Klaasen 1-0 39 Open
174 2017-04-28 PSS IM Norm 2017 Johannesburg RSA 4.4 Calvin John Klaasen Daniel Barrish 1/2-1/2 65 Open
175 2017-04-27 PSS IM Norm 2017 Johannesburg RSA 3.2 Daniel Jere Calvin John Klaasen 1/2-1/2 65 Open
176 2017-04-27 PSS IM Norm 2017 Johannesburg RSA 2.5 Calvin John Klaasen Farrukh Amonatov 1/2-1/2 32 Open
177 2017-04-26 PSS IM Norm 2017 Johannesburg RSA 1.1 Calvin John Klaasen Benjamin Vincent Hercules 1/2-1/2 40 Open
178 2016-12-04 African Chess Lounge IM Cape Town RSA 9.1 Calvin John Klaasen Daud Amini 1-0 36 Open
179 2016-12-03 African Chess Lounge IM Cape Town RSA 8.5 Daniel Anwuli Calvin John Klaasen 0-1 57 Open
180 2016-12-02 African Chess Lounge IM Cape Town RSA 7.2 Calvin John Klaasen Ryan Pierre Van Rensburg 1/2-1/2 17 Open
181 2016-12-01 African Chess Lounge IM Cape Town RSA 6.4 Daniel Jere Calvin John Klaasen 1-0 34 Open
182 2016-11-30 African Chess Lounge IM Cape Town RSA 5.3 Calvin John Klaasen Daniel Barrish 1-0 31 Open
183 2016-11-29 African Chess Lounge IM Cape Town RSA 4.3 Watu Kobese Calvin John Klaasen 1-0 38 Open
184 2016-11-28 African Chess Lounge IM Cape Town RSA 3.4 Calvin John Klaasen Charles De Villiers 1/2-1/2 70 Open
185 2016-11-27 African Chess Lounge IM Cape Town RSA 2.2 Henry Robert Steel Calvin John Klaasen 1/2-1/2 20 Open
186 2016-11-27 African Chess Lounge IM Cape Town RSA 1.5 Calvin John Klaasen Phemelo Khetho 1-0 26 Open
187 2016-09-13 42nd Olympiad 2016 Baku AZE 11.49 Calvin John Klaasen Brandon Wilson 1/2-1/2 86 Open
188 2016-09-12 42nd Olympiad 2016 Baku AZE 10.43 Emarald Takudzwa Mushore Calvin John Klaasen 0-1 24 Open
189 2016-09-09 42nd Olympiad 2016 Baku AZE 7.38 Calvin John Klaasen Ben Hague 1/2-1/2 33 Open
190 2016-09-08 42nd Olympiad 2016 Baku AZE 6.28 Anh Khoi Nguyen Calvin John Klaasen 1-0 35 Open
191 2016-09-04 42nd Olympiad 2016 Baku AZE 3.52 Calvin John Klaasen Maung Kyaw Zaw Hein Maung 1/2-1/2 44 Open
192 2016-09-02 42nd Olympiad 2016 Baku AZE 1.76 Sobhi Mziyako Calvin John Klaasen 0-1 25 Open
193 2016-05-02 Capablanca Festival IM Pretoria RSA 9.2 Dennis Ovcina Calvin John Klaasen 1/2-1/2 38 Open
194 2016-05-01 Capablanca Festival IM Pretoria RSA 8.5 Calvin John Klaasen Providence Oatlhotse 1-0 63 Open
195 2016-04-30 Capablanca Festival IM Pretoria RSA 7.1 Calvin John Klaasen Chitumbo Mwali 1-0 30 Open
196 2016-04-30 Capablanca Festival IM Pretoria RSA 6.5 Richmond Phiri Calvin John Klaasen 1/2-1/2 25 Open
197 2016-04-29 Capablanca Festival IM Pretoria RSA 5.2 Calvin John Klaasen Gavin Albert Anderson 1/2-1/2 21 Open
198 2016-04-28 Capablanca Festival IM Pretoria RSA 4.4 Andrew Kayonde Calvin John Klaasen 0-1 44 Open
199 2016-04-27 Capablanca Festival IM Pretoria RSA 3.3 Calvin John Klaasen Daniel Jere 0-1 42 Open
200 2016-04-27 Capablanca Festival IM Pretoria RSA 2.3 Daniel Anwuli Calvin John Klaasen 1-0 35 Open

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