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Individual Calculations April 2020 |
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| Khumalo, Keith Total change: -11.60 | |   |
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| 2020 Waterkloof Open Chess Tournament (Section A) | Pretoria | RSA | 2020-02-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1825 | 2129 | 4.00 | 5 | -0.13 | 20 | -2.60 | |
|  Smit, Yoshua | | | 1729 * | RSA | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Vundla, Mthandazo | | | 1755 | RSA | 1.00 | 1 | 0.10 | 20 | 2.00 | | | Simpson, Michael | | | 1729 * | RSA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Mnguni, Jacob Dumisani | | | 2127 | RSA | 0.00 | 1 | -0.50 | 20 | -10.00 | | | Nelson, Jaco | | | 1784 | RSA | 1.00 | 1 | 0.11 | 20 | 2.20 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | | | Boardwalk Pearson Prestige Chess Tournament 2020 (Indiv Swiss) | Port Elizabeth | RSA | 2020-03-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1935 | 2129 | 4.50 | 7 | -0.45 | 20 | -9.00 | |
| | Felix, Raphael | | | 1729 * | RSA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Nevin, Tyler | | | 1729 * | RSA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Kaulule Siame, Kela | | | 2178 | ZAM | 0.00 | 1 | -0.43 | 20 | -8.60 | | | Wilken, Justin Barend | | | 1906 | RSA | 1.00 | 1 | 0.22 | 20 | 4.40 | | | Hercules, Benjamin Vincent | | | 2144 | RSA | 0.50 | 1 | 0.02 | 20 | 0.40 | | | Mnguni, Jacob Dumisani | | | 2127 | RSA | 0.00 | 1 | -0.50 | 20 | -10.00 | | | Mkoko, Siphamandla | | | 1729 * | RSA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | |
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