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Individual Calculations July 2009 |
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| Murillo Arguedas, Jaime Total change: -3.70 | |   |
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| Copa Ocean Grupo B | San José | CRC | 2009-01-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2025 | 1848 | 1.00 | 4 | -0.10 | 25 | -2.50 | |
|  Castillo, Rommel | | | 2122 | CRC | 0.00 | 1 | -0.17 | 25 | -4.25 | | | Jimenez Esquivel, Greivin | | | 2043 | CRC | 1.00 | 1 | 0.75 | 25 | 18.75 | |  Solano Cruz, Agustin | | | 2031 | CRC | 0.00 | 1 | -0.26 | 25 | -6.50 | | | Montoya, Cristian | | | 1905 | CRC | 0.00 | 1 | -0.42 | 25 | -10.50 | |
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) | | | NOTE: K factor changed | | Copa Parque del Norte | San José | CRC | 2009-04-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2090 | 1848 | 1.50 | 4 | 0.66 | 15 | 9.90 | |
| | Valdes Romero, Leonardo | m | | 2198 | CRC | 0.50 | 1 | 0.39 | 15 | 5.85 | | | Rodriguez Miller, Adolfo | | | 2095 | CRC | 0.00 | 1 | -0.19 | 15 | -2.85 | | | Urbina Quiros, Edwin | | | 2135 | CRC | 1.00 | 1 | 0.84 | 15 | 12.60 | | | Duran Vega, Andres | | | 1933 | CRC | 0.00 | 1 | -0.38 | 15 | -5.70 | |
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) | | | NOTE: K factor changed | | Costa Rican National Championship Phase 1.2 | Moravia | CRC | 2009-06-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1974 | 1848 | 1.00 | 5 | -0.74 | 15 | -11.10 | |
| | Angulo Cubero, Oscar | | | 2007 | CRC | 0.50 | 1 | 0.21 | 15 | 3.15 | | | Ugalde, Ronald | | | 2120 | CRC | 0.00 | 1 | -0.17 | 15 | -2.55 | | | Solis, Efren | | | 2124 | CRC | 0.00 | 1 | -0.17 | 15 | -2.55 | | | Marin, Bryan | | | 1746 | CRC | 0.00 | 1 | -0.64 | 15 | -9.60 | | | Redondo Vargas, Diego | | | 1872 | CRC | 0.50 | 1 | 0.03 | 15 | 0.45 | |
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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