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Individual Calculations January 2009 |
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| Rodriguez, David Total change: -11.50 | |   |
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| III Internacional Bolsa de Valores | Santa Ana | CRC | 2008-09-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2128 | 1992 | 0.50 | 3 | -0.46 | 25 | -11.50 | |
|  Carvajal Gorgona, Jonathan | | | 2191 | CRC | 0.00 | 1 | -0.24 | 25 | -6.00 | | | Centeno Mora, Erick | | | 2048 | CRC | 0.50 | 1 | 0.08 | 25 | 2.00 | |  Castillo, Rommel | | | 2144 | NCA | 0.00 | 1 | -0.30 | 25 | -7.50 | |
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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