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Individual Calculations December 2015 |
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| Van Der Westhuizen, Willem Total change: 6.20 | |   |
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| Gauteng Chess League (Premier Section) | Johannesburg | RSA | 2015-10-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1971 | 2058 | 4.00 | 6 | 0.31 | 20 | 6.20 | |
|  Nene, Themba | | | 1922 | RSA | 0.50 | 1 | -0.18 | 20 | -3.60 | |  Redford, Stephen J. | | | 1830 | RSA | 1.00 | 1 | 0.21 | 20 | 4.20 | | | Nelson, Jaco | | | 1925 | RSA | 1.00 | 1 | 0.32 | 20 | 6.40 | | | Mare, Eben | | | 1990 | RSA | 1.00 | 1 | 0.41 | 20 | 8.20 | | | Mosetlhe, Kgaugelo | | | 2170 | RSA | 0.50 | 1 | 0.15 | 20 | 3.00 | | | Ristovich, Dmitar S. | | | 1988 | RSA | 0.00 | 1 | -0.60 | 20 | -12.00 | |
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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