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Individual Calculations July 2009 |
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| Urbina Quiros, Edwin Total change: -19.20 | |   |
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| Copa Parque del Norte | San José | CRC | 2009-04-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2081 | 2135 | 1.00 | 4 | -1.28 | 15 | -19.20 | |
|  Alvarado Rodriguez, Dizan | | | 2055 | CRC | 0.50 | 1 | -0.11 | 15 | -1.65 | |  Valdes Romero, Leonardo | m | | 2403 | CRC | 0.50 | 1 | 0.33 | 15 | 4.95 | | | Machado Ramirez, Allan | | | 2019 | CRC | 0.00 | 1 | -0.66 | 15 | -9.90 | | | Murillo Arguedas, Jaime | | | 1848 | CRC | 0.00 | 1 | -0.84 | 15 | -12.60 | |
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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