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Individual Calculations October 2008 |
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| Peraza, Rafael Total change: 10.25 | |   |
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| Campeonato Nacional de Costa Rica 2008 Fase 1 | Moravia | CRC | 2008-05-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2084 | 2023 | 2.50 | 5 | 0.41 | 25 | 10.25 | |
|  Ugalde, Ronald | | | 2142 | CRC | 0.50 | 1 | 0.16 | 25 | 4.00 | |  Barrios Zamora, Carlos | | | 2061 | CRC | 0.00 | 1 | -0.45 | 25 | -11.25 | | | Needham, Bryan | | | 2047 | CRC | 1.00 | 1 | 0.53 | 25 | 13.25 | | | Montenegro, Esteban | | | 2061 | CRC | 1.00 | 1 | 0.55 | 25 | 13.75 | | | Jimenez, Alonso | | | 2110 | CRC | 0.00 | 1 | -0.38 | 25 | -9.50 | |
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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