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Individual Calculations February 2019 |
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| Ramirez Aguilar, Julian Total change: -64.40 | |   |
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| II Torneo Internacional Sub 14 de Liberia 2018 | Liberia | CRC | 2018-12-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1181 | 1151 | 1.50 | 3 | 0.12 | 40 | 4.80 | |
|  Barquero Alfaro, Alejandro | | | 1305 | CRC | 0.00 | 1 | -0.29 | 40 | -11.60 | | | Adanis Mora, Naomy | | | 1196 | CRC | 0.50 | 1 | 0.06 | 40 | 2.40 | | | Hernandez Perez, Javier Francisco | | | 1041 | CRC | 1.00 | 1 | 0.35 | 40 | 14.00 | |
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) | | | | Abierto Internacional Metropolitano Infantil U10 2018 | San Jose | CRC | 2018-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1104 | 1151 | 0.50 | 2 | -0.63 | 40 | -25.20 | |
| | Hernandez Perez, Javier Francisco | | | 1041 | CRC | 0.50 | 1 | -0.15 | 40 | -6.00 | |  Mayorga Araya, Sofia | | | 1166 | CRC | 0.00 | 1 | -0.48 | 40 | -19.20 | |
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) | | | | Campeonato Nacional Infantil Absoluto Sub10 2019 | San Jose | CRC | 2019-01-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1127 | 1151 | 0.50 | 3 | -1.10 | 40 | -44.00 | |
| | Mayorga Araya, Sofia | | | 1195 | CRC | 0.00 | 1 | -0.44 | 40 | -17.60 | | | Ramos Rodriguez, Daniel | | | 1086 | CRC | 0.50 | 1 | -0.09 | 40 | -3.60 | | | Salazar Artavia, Keylor | | | 1101 | CRC | 0.00 | 1 | -0.57 | 40 | -22.80 | |
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) | | |
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