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Individual Calculations November 2019 |
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| Ruiz Alfaro, Darrel Total change: 41.20 | |   |
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| Campeonato Nacional por Equipos Sub14 Infantil 2019 | San Ramon y Naranjo | CRC | 2019-09-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1266 | 1306 | 3.00 | 3 | 1.36 | 40 | 54.40 | |
|  Salazar Artavia, Keylor | | | 1056 | CRC | 1.00 | 1 | 0.19 | 40 | 7.60 | |  Semana Ramirez, Jerian | | | 1419 | CRC | 1.00 | 1 | 0.65 | 40 | 26.00 | | | Huaman Bengoa, Valeska Priscilla | | | 1323 | CRC | 1.00 | 1 | 0.52 | 40 | 20.80 | |
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) | | | | VII Open Encuentro de Culturas 2019 | Santa Ana | CRC | 2019-10-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1527 | 1306 | 1.00 | 5 | -0.33 | 40 | -13.20 | |
| | Campos Sanchez, Roberto | | | 1706 * | CRC | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Jimenez Corella, Jimena | | | 1016 | CRC | 1.00 | 1 | 0.16 | 40 | 6.40 | | | Quesada Leon, Joshua | | | 1706 * | CRC | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Fernandez Sibaja, Felipe J | c | | 1706 * | CRC | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Gamboa Vargas, Jose Pablo | | | 1502 | CRC | 0.00 | 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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