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Individual Calculations December 2019 |
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| Campos Sanchez, Roberto Total change: -42.80 | |   |
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| Campeonato Panamericano Amateur U2300 2019 | San Jose | CRC | 2019-10-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1999 | 2035 | 2.50 | 7 | -1.27 | 20 | -25.40 | |
|  Leon, Orlando | f | | 2220 | PAN | 0.00 | 1 | -0.26 | 20 | -5.20 | |  Sanchez, Steven | | | 2031 | NCA | 0.50 | 1 | -0.01 | 20 | -0.20 | | | Ramirez Toledo, Ayleen Maribel | | | 1805 | MEX | 1.00 | 1 | 0.21 | 20 | 4.20 | | | Chung, Yaleika | | wf | 1734 | PAN | 0.50 | 1 | -0.35 | 20 | -7.00 | | | Arias Serrano, Luis Antonio | c | | 2115 | VEN | 0.00 | 1 | -0.39 | 20 | -7.80 | | | Lievano, Luis | c | | 2007 | ESA | 0.50 | 1 | -0.04 | 20 | -0.80 | | | Marson, Juan Miguel | | | 2082 | ARG | 0.00 | 1 | -0.43 | 20 | -8.60 | |
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) | | | | Torneo Abierto Naranjo 2019 | Naranjo | CRC | 2019-11-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1642 | 2011 | 4.50 | 6 | -0.87 | 20 | -17.40 | |
| | Molina Venegas, Julian Ernesto | | | 1611 * | CRC | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Shion Solis, Esteban Jesus | | | 1611 * | CRC | 0.00 | 1 | -0.92 | 20 | -18.40 | | | Villalobos Arrieta, Eduardo | | | 1611 * | CRC | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Cardenas Vargas, Jean Carlo | | | 1611 * | CRC | 0.50 | 1 | -0.42 | 20 | -8.40 | | | Gamboa Vargas, Jose Pablo | | | 1611 * | CRC | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Sanchez Garro, Juan Gabriel | | | 1797 | CRC | 1.00 | 1 | 0.23 | 20 | 4.60 | | | * 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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