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Individual Calculations November 2017 |
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| Semana Ramirez, Jerian Total change: 53.60 | |   |
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| Campeonato Nacional Infantil Sub14 por Equipos 2017 | Cartago | CRC | 2017-09-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1246 | 1072 | 2.00 | 2 | 1.45 | 40 | 58.00 | |
|  Jimenez Navarro, Diego | | | 1250 | CRC | 1.00 | 1 | 0.73 | 40 | 29.20 | | | Segura Cordero, Ariel | | | 1242 | CRC | 1.00 | 1 | 0.72 | 40 | 28.80 | |
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) | | | | V Open Encuentro de Culturas Santa Ana 2017 | Santa Ana | CRC | 2017-10-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1412 | 1102 | 0.50 | 4 | -0.11 | 40 | -4.40 | |
|  Rivera Gonzalez, Jose Alexis | | | 1502 * | CRC | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Cabrera Sosa, Marco Vinicio | | | 1502 * | CRC | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Coto Calderon, Juan Diego | | | 1345 | CRC | 0.00 | 1 | -0.20 | 40 | -8.00 | | | Segura Cordero, Ariel | | | 1299 | CRC | 0.50 | 1 | 0.25 | 40 | 10.00 | | | * 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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