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Individual Calculations April 2008 |
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| Carvajal, Jonathan Total change: 31.05 | |   |
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| Internacional de Alajuela 2007 | Alajuela | CRC | 2007-07-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2387 | 2142 | 0.50 | 4 | -0.32 | 15 | -4.80 | |
|  Perelshteyn, Eugene | g | | 2492 | USA | 0.00 | 1 | -0.11 | 15 | -1.65 | |  Murillo, Alexis | m | | 2322 | CRC | 0.00 | 1 | -0.26 | 15 | -3.90 | | | Sagalchik, Gennadij | g | | 2440 | USA | 0.50 | 1 | 0.35 | 15 | 5.25 | | | Arias, Lemmys | f | | 2293 | ESA | 0.00 | 1 | -0.30 | 15 | -4.50 | |
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) | | | | Campeonato Centroamericano Masculino 2007 | San Salvador | ESA | 2007-10-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2273 | 2142 | 2.50 | 6 | 0.48 | 15 | 7.20 | |
| | Valdes, Leonardo | m | | 2401 | CRC | 0.00 | 1 | -0.18 | 15 | -2.70 | | | Lorenzana, Wilson | f | | 2230 | GUA | 1.00 | 1 | 0.62 | 15 | 9.30 | | | Chavez, Ricardo | f | | 2195 | ESA | 0.00 | 1 | -0.43 | 15 | -6.45 | | | Arias, Lemmys | f | | 2293 | ESA | 0.50 | 1 | 0.20 | 15 | 3.00 | | | Leyva, Hector | m | | 2409 | ESA | 0.00 | 1 | -0.18 | 15 | -2.70 | | | Valdes, Rances | | | 2108 | PAN | 1.00 | 1 | 0.45 | 15 | 6.75 | |
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) | | | | IV International Tournament Arnoldo Tenorio in Memoriam 2007 | Granada | NCA | 2007-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2289 | 2142 | 3.50 | 5 | 1.91 | 15 | 28.65 | |
| | Valdes, Leonardo | m | | 2401 | CRC | 0.50 | 1 | 0.32 | 15 | 4.80 | | | Alvarado, Dizan | | | 2080 | CRC | 1.00 | 1 | 0.41 | 15 | 6.15 | | | Guevara, Martin | f | | 2286 | NCA | 1.00 | 1 | 0.69 | 15 | 10.35 | | | Gonzalez, Bernal | m | | 2434 | CRC | 0.50 | 1 | 0.35 | 15 | 5.25 | | | Pilarte, Rene | f | | 2246 | NCA | 0.50 | 1 | 0.14 | 15 | 2.10 | |
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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