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Individual Calculations September 2009 |
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| De Villiers, Charles Ca. Total change: 9.45 | |   |
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| South African Open Chess Championship | Cape Town | RSA | 2009-07-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2210 | 2265 | 4.00 | 6 | 0.63 | 15 | 9.45 | |
|  Steyn, Hans | | | 1865 * | RSA | 1.00 | 1 | 0.08 | 15 | 1.20 | | | Nelson, William Jh. | | | 2082 | RSA | 1.00 | 1 | 0.26 | 15 | 3.90 | | | Mateus, Alice | f | | 2216 | MOZ | 0.50 | 1 | -0.07 | 15 | -1.05 | |  Willenberg, Craig G. | | | 2077 | RSA | 1.00 | 1 | 0.26 | 15 | 3.90 | | | Jones, Gawain | g | | 2554 | ENG | 0.50 | 1 | 0.34 | 15 | 5.10 | | | Wang, Puchen | m | | 2465 | NZL | 0.00 | 1 | -0.24 | 15 | -3.60 | | | * 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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