PLAYER PAGE
Cornelis Klaver
181015759Johannesburg Metro (GJM)Personal
Main rating
| Rating | 2043.9 |
| K-factor | 20 |
| Floor | 1579.9 |
| Highest | 2079.9 (2024-02-01) |
| Min/Max +/- allowed | 47 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1505.1 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 2043.9 |
| K-factor | 20 |
| Floor | 1579.9 |
| Highest | 2079.9 (2024-02-01) |
| Min/Max +/- allowed | 47.3 |
Standard rating
| Rating | 2094.6 |
| K-factor | 20 |
| Floor | 1603 |
| Highest | 2103 (2024-02-01) |
| Min/Max +/- allowed | 45.8 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1334.5 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 2094.6 |
| K-factor | 20 |
| Floor | 1603 |
| Highest | 2103 (2024-02-01) |
| Min/Max +/- allowed | 45.8 |
Rapid rating
| Rating | 2046.7 |
| K-factor | 20 |
| Floor | 1581.3 |
| Highest | 2081.3 (2024-02-01) |
| Min/Max +/- allowed | 47.2 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 781 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 2046.7 |
| K-factor | 20 |
| Floor | 1581.3 |
| Highest | 2081.3 (2024-02-01) |
| Min/Max +/- allowed | 47.2 |
Blitz rating
| Rating | 1909 |
| K-factor | 20 |
| Floor | 1576.4 |
| Highest | 2076.4 (2018-09-01) |
| Min/Max +/- allowed | 47.6 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1456.6 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1909 |
| K-factor | 20 |
| Floor | 1576.4 |
| Highest | 2076.4 (2018-09-01) |
| Min/Max +/- allowed | 47.6 |
Rating Graph
Tournaments
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | JMC Trinityhouse Little Falls (A) | Standard | 2026-02-28 | 2026-02-28 | Johannesburg Metro (GJM) | 5 | 2043.9 | 5 | 3 | 2004.8 | -3 | Details |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | Moja Chess Extravaganza 2025 (Blitz) | Blitz | 2025-04-26 | 2025-04-26 | Johannesburg Metro (GJM) | 7 | 2044.1 | 7 | 5 | 1994 | 0 | Details |
| 2 | 2024 Tshwane Chess Club Clash (Prestige) | Standard | 2024-10-12 | 2024-10-12 | Tshwane (GTP) | 5 | 2040.1 | 5 | 3 | 1942.9 | 0 | Details |
| 3 | Hermanus Chess Club Open 2024 (Championship) | Rapid | 2024-04-20 | 2024-04-20 | Overberg (WOS) | 7 | 2069.4 | 7 | 2 | 1647.4 | 0 | Details |
| 4 | Wanderers Blitz Tournament 2024 | Blitz | 2024-03-23 | 2024-03-23 | Johannesburg Metro (GJM) | 9 | 2079.9 | 9 | 5 | 1699.4 | 0 | Details |
| 5 | 2023 KZN Open (A) | Standard | 2023-04-29 | 2023-04-30 | Ethekwini (KED) | 7 | 2027.2 | 7 | 6.5 | 1978.4 | 0 | Details |
| 6 | FNB Chessheroes Anity Bullying 2022 (Blitz) | Blitz | 2022-11-05 | 2022-11-05 | Johannesburg Metro (GJM) | 7 | 2032.1 | 7 | 3.5 | 1898.8 | 0 | Details |
| 7 | Chessheroes Bowls Club Zoo Lake Challenge 2022 | Blitz | 2022-07-02 | 2022-07-02 | Johannesburg Metro (GJM) | 7 | 2036.3 | 7 | 4.5 | 1871.4 | 0 | Details |
| 8 | Rachella`s Cafe Blitz Tournament 1 2022 | Blitz | 2022-03-20 | 2022-03-20 | Tshwane (GTP) | 9 | 2040.2 | 9 | 6 | 1829.9 | 0 | Details |
| 9 | Chessheroes Choo Choo Challenge 2022 | Blitz | 2022-01-08 | 2022-01-08 | Tshwane (GTP) | 7 | 2019 | 7 | 4 | 1808.8 | 0 | Details |
| 10 | Chessheroes Superhero Challenge 2022 | Classical | 2022-01-04 | 2022-01-07 | Johannesburg Metro (GJM) | 7 | 2019 | 7 | 5 | 2192.3 | 0 | Details |
| 11 | Chess Heroes Open Rapid Challenge 2020 | Rapid | 2020-02-01 | 2020-02-01 | Johannesburg Metro (GJM) | 6 | 2017.5 | 6 | 5 | 1920.3 | 0 | Details |
| 12 | 2019 Inter Region Chess Championships | Classical | 2020-01-09 | 2020-01-12 | 4 Knights (4K) | 7 | 2017.3 | 5 | 4 | 1890.6 | 0 | Details |
| 13 | Vienna Chess Open 2019 | Classical | 2019-08-17 | 2019-08-24 | aUSTRIA (AUT) | 9 | 2009.7 | 9 | 3 | 2044.2 | 0 | Details |
| 14 | Ehlanzeni Open 2019 (A) | Classical | 2019-07-19 | 2019-07-21 | Ehlanzeni (MEN) | 6 | 2017.9 | 6 | 4 | 1943.7 | 0 | Details |
| 15 | 2019 SWVG Arnold Classic (Blitz Prestige) | Blitz | 2019-05-19 | 2019-05-19 | Tshwane (GTP) | 10 | 2024.3 | 10 | 5 | 1780.1 | 0 | Details |
| 16 | 2019 Boardwalk Pearson Open (Invitational) | Classical | 2019-03-29 | 2019-03-31 | Nelson Mandela Bay (ENM) | 5 | 2039.9 | 5 | 1.5 | 1899.6 | 0 | Details |
| 17 | SWVG Arnold Classic Rapid & Blitz 2018 (Rapid Prestige) | Rapid | 2018-05-19 | 2018-05-20 | Tshwane (GTP) | 10 | 2048.1 | 10 | 5.5 | 1909.4 | 0 | Details |
| 18 | 2018 Boardwalk Pearson Open (A) | Standard | 2018-03-16 | 2018-03-18 | Nelson Mandela Bay (ENM) | 6 | 2076.4 | 5 | 2.5 | 1758.3 | 0 | Details |
| 19 | 2017 Kcf Africa Team Chess Invitational | Classical | 2017-10-05 | 2017-10-08 | Tshwane (GTP) | 7 | 2042 | 6 | 2 | 2036 | 0 | Details |
| 20 | New Market Mall Rapid - Alberton - 2017-09-29&30 Open 2017 | Rapid | 2017-09-29 | 2017-09-30 | Ekurhuleni (GE) | 11 | 2052 | 11 | 9 | 1736 | 0 | Details |
| 21 | 2017 Pss Prestige (Rapid) | Rapid | 2017-04-22 | 2017-04-23 | Johannesburg Metro (GJM) | 10 | 2102 | 10 | 4.5 | 1968 | 0 | Details |
| 22 | 2017 Pss Prestige (Blitz) | Blitz | 2017-04-23 | 2017-04-23 | Johannesburg Metro (GJM) | 10 | 2048 | 10 | 5 | 1591 | 0 | Details |
| 23 | 2017 Ethekwini Open (A) | Classical | 2017-03-18 | 2017-03-21 | Kwazulu Natal (KZN) | 7 | 2043 | 7 | 4.5 | 1948 | 0 | Details |
| 24 | Chessnuts / Fontainebleau (Elite) | Standard | 2017-02-10 | 2017-02-11 | Johannesburg Metro (GJM) | 6 | 2031 | 6 | 4.5 | 2157 | 0 | Details |
| 25 | South African Inter Regional Championships 2016 | Classical | 2016-12-20 | 2016-12-23 | Tshwane (GTP) | 7 | 2038 | 3 | 2 | 1949 | 0 | Details |
| 26 | Lowveld Open 2016 (A) | Standard | 2016-09-10 | 2016-09-10 | Ehlanzeni (MEN) | 6 | 2040 | 6 | 5 | 2040 | 0 | Details |
| 27 | Klaver, C (Cornelis) | Blitz | 2016-08-01 | 2016-08-01 | 0 | 2018 | 9 | 4 | 2154 | 0 | Details | |
| 28 | 2016 Redpath Mining Millionaire Chess Open (A) | Standard | 2016-07-16 | 2016-07-16 | Tshwane (GTP) | 5 | 2030 | 5 | 4.5 | 2158 | 0 | Details |
| 29 | Randburg Chess Club Championship Closed Section 20 | Standard | 2016-04-19 | 2016-05-31 | Johannesburg Metro (GJM) | 7 | 2030 | 7 | 3 | 1869 | 0 | Details |
| 30 | Randburg Chess Club Swiss I 2016 | Standard | 2016-01-26 | 2016-03-08 | Johannesburg Metro (GJM) | 7 | 2046 | 5 | 3 | 1800 | 0 | Details |
| 31 | Jnw Chess - Linden Open 2016 (A) | Standard | 2016-04-15 | 2016-04-16 | Johannesburg Metro (GJM) | 6 | 2046 | 6 | 4.5 | 2033 | 0 | Details |
| 32 | South African Inter Region Championship 2015 | Standard | 2016-01-08 | 2016-01-10 | Western Province (WP) | 7 | 2046 | 4 | 3 | 1977 | 0 | Details |
| 33 | Tanzania Open Chess Championship 2015 | Blitz | 2015-11-27 | 2015-11-27 | Tanzania (TAN) | 0 | 2026 | 8 | 6 | 2112 | 0 | Details |
| 34 | Tsogo Sun Millionaire Satellite Chess Festival (Prestige) | Classical | 2015-07-15 | 2015-07-19 | Chess Excellence (CEX) | 9 | 2014 | 9 | 6 | 2025 | 0 | Details |
| 35 | 2015 Capablanca (Rr A Section) | Classical | 2015-04-29 | 2015-05-03 | Tshwane (GTP) | 9 | 2001 | 9 | 5 | 2058 | 0 | Details |
| 36 | Waterkloof Open (Prestige Section) | Classical | 2015-03-05 | 2015-03-08 | Tshwane (GTP) | 6 | 1996 | 5 | 3.5 | 2038 | 0 | Details |
| 37 | Piet Robbertse 2015 - A Section | Standard | 2015-01-31 | 2015-01-31 | Tshwane (GTP) | 5 | 2010 | 3 | 2 | 1709 | 0 | Details |
| 38 | Inter Regional Team Championship 2014 A Section | Standard | 2015-01-08 | 2015-01-10 | Northern Cape (NC) | 7 | 1994 | 6 | 5 | 2040 | 0 | Details |
| 39 | Ziggies | Blitz | 2014-12-13 | 2014-12-13 | Johannesburg Metro (GJM) | 7 | 2077 | 7 | 4 | 1962 | 0 | Details |
| 40 | 2014 Chessexcellence Summer Cup | Classical | 2014-11-29 | 2014-12-07 | Johannesburg Metro (GJM) | 7 | 1990 | 7 | 5.5 | 1988 | 0 | Details |
| 41 | Randburg Championships 2014 Champ Section | Standard | 2014-09-30 | 2014-09-30 | Johannesburg Metro (GJM) | 7 | 2006 | 6 | 2.5 | 1868 | 0 | Details |
| 42 | Durban Open Grandmasters Chess Tournament | Classical | 2014-09-20 | 2014-09-29 | Kwazulu Natal (KZN) | 11 | 2015 | 11 | 6.5 | 1917 | 0 | Details |
| 43 | Wrps Jhb South Chess (Section A) | Standard | 2014-08-29 | 2014-08-30 | Johannesburg Metro (GJM) | 5 | 2015 | 4 | 2 | 1722 | 0 | Details |
| 44 | 2014 Capablanca Open Chess Festival - Fide - Short | Standard | 2014-05-01 | 2014-05-04 | Tshwane (GTP) | 9 | 2008 | 8 | 7 | 1993 | 0 | Details |
| 45 | Hennops Open 2014 - Section A Open To All | Standard | 2014-03-08 | 2014-03-08 | Tshwane (GTP) | 5 | 2008 | 0 | 0 | 0 | 0 | Details |
| 46 | Waterkloof Open - A Section | Standard | 2014-02-28 | 2014-03-01 | Tshwane (GTP) | 6 | 2008 | 0 | 0 | 0 | 0 | Details |
| 47 | 2013 Monnas Open A Section | Standard | 2013-10-04 | 2013-10-06 | Johannesburg Metro (GJM) | 7 | 2006 | 6 | 4 | 2025 | 0 | Details |
| 48 | Gauteng Chess League (Premier Division) | Standard | 2013-08-31 | 2013-08-31 | Tshwane (GTP) | 15 | 1999 | 5 | 4 | 2034 | 0 | Details |
| 49 | Maragon Open 2013 - A Section | Standard | 2013-05-10 | 2013-05-11 | Gauteng West (GW) | 6 | 2007 | 5 | 3.5 | 1940 | 0 | Details |
| 50 | 2013 Capablanca Open Chess Festival Fide Prestige (B-Section) | Classical | 2013-04-26 | 2013-05-01 | Tshwane (GTP) | 9 | 2007 | 9 | 4.5 | 1986 | 0 | Details |
Game statistics ( )
| Games | 0 |
| Wins | 0 |
| Draws | 0 |
| Losses | 0 |
| White | 0 |
| Black | 0 |
| White wins | 0 |
| Black wins | 0 |
| Score | 0 |
| Percent | 0 |
| Dp | 0 |
| AOR | 0 |
| Performance | 0 |
Game statistics ()
| Games | 0 |
| Wins | 0 |
| Draws | 0 |
| Losses | 0 |
| White | 0 |
| Black | 0 |
| White wins | 0 |
| Black wins | 0 |
| Score | 0 |
| Percent | 0 |
| Dp | 0 |
| AOR | 0 |
| Performance | 0 |
Game statistics (History)
| Games | 128 |
| Wins | 57 |
| Draws | 36 |
| Losses | 35 |
| White | 65 |
| Black | 63 |
| White wins | 28 |
| Black wins | 29 |
| Score | 75 |
| Percent | 58.6 |
| Dp | 73 |
| AOR | 1813.2 |
| Performance | 1886.2 |
Rankings (Main)
| National | |
| Overall | 55 |
| Gender | 54 |
| Age group | 38 |
| Gender/Age | 38 |
| Provincial | |
| Overall | 22 |
| Gender | 21 |
| Age group | 18 |
| Gender/Age | 18 |
| Regional | |
| Overall | 13 |
| Gender | 12 |
| Age group | 10 |
| Gender/Age | 10 |
Rankings (Standard)
| National | |
| Overall | -1 |
| Gender | -1 |
| Age group | -1 |
| Gender/Age | -1 |
| Provincial | |
| Overall | -1 |
| Gender | -1 |
| Age group | -1 |
| Gender/Age | -1 |
| Regional | |
| Overall | -1 |
| Gender | -1 |
| Age group | -1 |
| Gender/Age | -1 |
Rankings (Rapid)
| National | |
| Overall | -1 |
| Gender | -1 |
| Age group | -1 |
| Gender/Age | -1 |
| Provincial | |
| Overall | -1 |
| Gender | -1 |
| Age group | -1 |
| Gender/Age | -1 |
| Regional | |
| Overall | -1 |
| Gender | -1 |
| Age group | -1 |
| Gender/Age | -1 |
Rankings (Blitz)
| National | |
| Overall | 30 |
| Gender | 30 |
| Age group | 21 |
| Gender/Age | 21 |
| Provincial | |
| Overall | 12 |
| Gender | 12 |
| Age group | 10 |
| Gender/Age | 10 |
| Regional | |
| Overall | 5 |
| Gender | 5 |
| Age group | 5 |
| Gender/Age | 5 |
Performance ( )
| Games | 0 |
| Score | 0 |
| Percent | 0 |
| Aor | 0 |
| Dp | 0 |
| Prat | 0 |
Performance ()
| Games | 0 |
| Score | 0 |
| Percent | 0 |
| Aor | 0 |
| Dp | 0 |
| Prat | 0 |
Performance (12 months)
| Games | 7 |
| Score | 5 |
| Percent | 71.4 |
| Aor | 1811.9 |
| Dp | 182.1 |
| Prat | 1994 |
Performance (History)
| Games | 128 |
| Score | 75 |
| Percent | 58.6 |
| Aor | 1813.2 |
| Dp | 73 |
| Prat | 1886.2 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Khumalo, KB (Keith Babongile) | 4 | 2 | 2 | 2019 Boardwalk Pearson Open (Invitational) | 2024 Tshwane Chess Club Clash (Prestige) | Details |
| Overall | 2 | Mnguni, JD (Jakob Dumisani) | 4 | 2 | 2 | SWVG Arnold Classic Rapid & Blitz 2018 (Rapid Prestige) | Rachella`s Cafe Blitz Tournament 1 2022 | Details |
| Overall | 3 | De Abreu, RN (Roberto Nicolau) | 3 | 3 | 0 | SWVG Arnold Classic Rapid & Blitz 2018 (Rapid Prestige) | FNB Chessheroes Anity Bullying 2022 (Blitz) | Details |
| Overall | 4 | Oatlhotse, P (Providence) | 3 | 0 | 3 | 2019 Boardwalk Pearson Open (Invitational) | Ehlanzeni Open 2019 (A) | Details |
| Overall | 5 | Van Rensburg, RP (Ryan Pierre) | 3 | 2 | 1 | FNB Chessheroes Anity Bullying 2022 (Blitz) | Moja Chess Extravaganza 2025 (Blitz) | Details |
| Standard | 1 | Khumalo, KB (Keith Babongile) | 3 | 1 | 2 | 2019 Boardwalk Pearson Open (Invitational) | 2024 Tshwane Chess Club Clash (Prestige) | Details |
| Standard | 2 | Hercules, BV (Benjamin Vincent) | 2 | 1 | 1 | 2019 Boardwalk Pearson Open (Invitational) | Chessheroes Superhero Challenge 2022 | Details |
| Standard | 3 | Beukes, DM (Dante) | 2 | 2 | 0 | 2018 Boardwalk Pearson Open (A) | 2019 Boardwalk Pearson Open (Invitational) | Details |
| Standard | 4 | Odendaal, F (Frederick) | 2 | 1 | 1 | 2018 Boardwalk Pearson Open (A) | 2019 Boardwalk Pearson Open (Invitational) | Details |
| Standard | 5 | Oatlhotse, P (Providence) | 2 | 0 | 2 | 2019 Boardwalk Pearson Open (Invitational) | Ehlanzeni Open 2019 (A) | Details |
| Rapid | 1 | Mbedza, R (Richard) | 2 | 0 | 2 | SWVG Arnold Classic Rapid & Blitz 2018 (Rapid Prestige) | Chess Heroes Open Rapid Challenge 2020 | Details |
| Blitz | 1 | Van Rensburg, RP (Ryan Pierre) | 3 | 2 | 1 | FNB Chessheroes Anity Bullying 2022 (Blitz) | Moja Chess Extravaganza 2025 (Blitz) | Details |
| Blitz | 2 | Steyn, H (Hans) | 3 | 1 | 2 | Chessheroes Choo Choo Challenge 2022 | FNB Chessheroes Anity Bullying 2022 (Blitz) | Details |
| Blitz | 3 | Selepe, LN (Lwazi) | 2 | 1 | 1 | Chessheroes Choo Choo Challenge 2022 | Moja Chess Extravaganza 2025 (Blitz) | Details |
| Blitz | 4 | Simpson, M (Michael) | 2 | 0 | 2 | Chessheroes Bowls Club Zoo Lake Challenge 2022 | FNB Chessheroes Anity Bullying 2022 (Blitz) | Details |
| Blitz | 5 | Nene, TH (Themba Hope) | 2 | 1 | 1 | Chessheroes Choo Choo Challenge 2022 | Rachella`s Cafe Blitz Tournament 1 2022 | Details |