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Individual Calculations October 2018 |
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| Chaves Williams, Jose Andres Total change: 29.20 | |   |
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| I Torneo Desamparados de Alajuela 2018 | Alajuela | CRC | 2018-09-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1790 | 1519 | 2.00 | 3 | 1.46 | 20 | 29.20 | |
|  Rivera Gonzalez, Jose Alexis | | | 1806 | CRC | 0.50 | 1 | 0.34 | 20 | 6.80 | |  Espinoza Guerrero, Warner | | | 1861 | CRC | 0.50 | 1 | 0.38 | 20 | 7.60 | | | Arce Mendez, Elias | | | 1703 | CRC | 1.00 | 1 | 0.74 | 20 | 14.80 | |
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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