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Individual Calculations December 2017 |
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| Marais, Alwyn Johannes Total change: -4.80 | |   |
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| 2017 Gauteng North Open (A Section) | Pretoria | RSA | 2017-10-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1468 | 1191 | 0.50 | 3 | -0.12 | 40 | -4.80 | |
|  Chueu, Calvin | | | 1591 * | RSA | 0.50 | 1 | 0.42 | 40 | 16.80 | |  Mazibuko, Khanya | c | | 1591 * | RSA | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Bekker, Luan | | | 1223 | RSA | 0.00 | 1 | -0.46 | 40 | -18.40 | | | * 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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