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Individual Calculations January 2018 |
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| Buitrago Mosquera, Antonio Total change: -10.60 | |   |
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| Abierto Metropolitano 2017 | San Jose | CRC | 2017-12-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1719 | 1836 | 2.00 | 3 | 0.06 | 20 | 1.20 | |
|  Zuniga Cerdas, Fernando | | | 1580 | CRC | 1.00 | 1 | 0.19 | 20 | 3.80 | |  Del Cid Winter, Roberto | | | 1728 | CRC | 1.00 | 1 | 0.35 | 20 | 7.00 | | | Ulloa Avellan, Oscar | | | 1850 | CRC | 0.00 | 1 | -0.48 | 20 | -9.60 | |
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) | | | | I Torneo Cerrado Marciano Porras in memoriam | San Jose | CRC | 2017-12-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2056 | 1836 | 1.00 | 6 | -0.59 | 20 | -11.80 | |
| | Arias Santana, Mauricio | m | | 2236 * | CRC | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Carvajal Pena, Daniel | | | 1868 | CRC | 0.00 | 1 | -0.46 | 20 | -9.20 | | | Nunez Gonzalez, Neeshmy | | wc | 1796 | CRC | 0.00 | 1 | -0.56 | 20 | -11.20 | | | Quesada Campos, Jordi Alessandre | c | | 1961 | CRC | 1.00 | 1 | 0.67 | 20 | 13.40 | | | Jimenez Garcia, Emmanuel | f | | 2236 * | CRC | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Murillo Tsijli, Alexis | m | | 2236 * | CRC | 0.00 | 1 | -0.08 | 20 | -1.60 | | | * 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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