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Individual Calculations January 2016 |
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| Salazar Gould, Melanie Total change: -3.20 | |   |
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| Campeonato Nacional por Equipos Liga Premier 2015 | San Jose | CRC | 2015-11-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1924 | 1544 | 1.00 | 3 | 0.72 | 40 | 28.80 | |
|  Carvajal Gorgona, Jonathan | | | 1944 * | CRC | 0.00 | 1 | -0.08 | 40 | -3.20 | |  Campos Cerdas, Jorge | | | 1883 | CRC | 0.00 | 1 | -0.12 | 40 | -4.80 | | | Araya Umana, Carlos | | | 1944 * | CRC | 1.00 | 1 | 0.92 | 40 | 36.80 | | | * 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) | | | | Continental Panamerican Schools 2015 Under 13 | San Jose | CRC | 2015-12-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1526 | 1571 | 2.00 | 5 | -0.80 | 40 | -32.00 | |
| | Espitia Torres, Mateo | | | 1408 | CRC | 0.00 | 1 | -0.72 | 40 | -28.80 | | | Soto Alfaro, Braulio | | | 1397 | CRC | 1.00 | 1 | 0.27 | 40 | 10.80 | | | Guzman Hidalgo, Nicolas | | | 1467 | CRC | 1.00 | 1 | 0.36 | 40 | 14.40 | | | Ramirez Madrid, Gerardo Alfonso | | | 1631 | CRC | 0.00 | 1 | -0.42 | 40 | -16.80 | | | Salazar Cabezas, Alberto Javier | | | 1728 | NCA | 0.00 | 1 | -0.29 | 40 | -11.60 | |
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) | | |
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