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Individual Calculations July 2009 |
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| Alvarado Rodriguez, Dizan Total change: -9.60 | |   |
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| Copa Ocean Grupo A | San José | CRC | 2009-01-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2106 | 2055 | 0.50 | 2 | -0.36 | 15 | -5.40 | |
|  Solano Lopez, Royner | | | 2083 | CRC | 0.50 | 1 | 0.04 | 15 | 0.60 | |  Solis Gaitan, Efren | | | 2128 | CRC | 0.00 | 1 | -0.40 | 15 | -6.00 | |
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) | | | | Copa Parque del Norte | San José | CRC | 2009-04-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2182 | 2055 | 0.50 | 3 | -0.57 | 15 | -8.55 | |
| | Urbina Quiros, Edwin | | | 2135 | CRC | 0.50 | 1 | 0.11 | 15 | 1.65 | | | Gomez Huertas, Stanley | | | 2007 | CRC | 0.00 | 1 | -0.57 | 15 | -8.55 | | | Valdes Romero, Leonardo | m | | 2403 | CRC | 0.00 | 1 | -0.11 | 15 | -1.65 | |
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) | | | | Copa Metropolitana | San Jose | CRC | 2009-05-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2124 | 2055 | 2.00 | 4 | 0.29 | 15 | 4.35 | |
| | Gonzalez Acosta, Bernal | m | | 2405 | CRC | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Montoya Aguilar, Cristian | | | 1900 | CRC | 0.00 | 1 | -0.71 | 15 | -10.65 | | | Jimenez, Greivin | | | 2043 | CRC | 1.00 | 1 | 0.48 | 15 | 7.20 | | | Castillo, Rommel | | | 2149 | NCA | 1.00 | 1 | 0.63 | 15 | 9.45 | |
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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