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Individual Calculations October 2008 |
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| Van Der Nat, Nicholas P. Total change: -0.15 | |   |
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| South African Open Chess Championship 2008 | Centurion | RSA | 2008-07-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2199 | 2274 | 3.50 | 6 | -0.01 | 15 | -0.15 | |
|  De Waal, Ingrid | | | 1924 | RSA | 1.00 | 1 | 0.11 | 15 | 1.65 | |  Klaasen, Calvin J. | | | 2048 | RSA | 0.50 | 1 | -0.29 | 15 | -4.35 | | | Rendle, Thomas | m | | 2363 | ENG | 1.00 | 1 | 0.62 | 15 | 9.30 | | | Kobese, Watu Kw. | m | | 2385 | RSA | 0.00 | 1 | -0.35 | 15 | -5.25 | | | Masango, Spencer | | | 2134 | ZIM | 1.00 | 1 | 0.31 | 15 | 4.65 | | | Solomon, Kenneth T. | m | | 2340 | RSA | 0.00 | 1 | -0.41 | 15 | -6.15 | |
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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