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Individual Calculations October 2018 |
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| Porras Chavarria, Michael Total change: 14.80 | |   |
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| I Torneo Desamparados de Alajuela 2018 | Alajuela | CRC | 2018-09-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1609 | 1438 | 2.00 | 5 | 0.37 | 40 | 14.80 | |
|  Campos Sanchez, Roberto | | | 1838 * | CRC | 0.00 | 1 | -0.08 | 40 | -3.20 | |  Valverde Solano, Enrique | | | 1308 | CRC | 1.00 | 1 | 0.32 | 40 | 12.80 | | | Solis L., Efren A. | | | 1838 * | CRC | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Arce Oviedo, Cesar | | | 1693 | CRC | 0.00 | 1 | -0.19 | 40 | -7.60 | | | Ramirez Madrid, Daniel Alberto | | | 1366 | CRC | 1.00 | 1 | 0.40 | 40 | 16.00 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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