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Individual Calculations February 2019 |
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| Salazar Artavia, Keylor Total change: -52.40 | |   |
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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 |
| 1202 | 1101 | 0.00 | 3 | -1.13 | 40 | -45.20 | |
|  Hernandez Perez, Javier Francisco | | | 1041 | CRC | 0.00 | 1 | -0.58 | 40 | -23.20 | |  Adanis Mora, Naomy | | | 1196 | CRC | 0.00 | 1 | -0.37 | 40 | -14.80 | | | Lopez Bustos, David | | | 1368 | CRC | 0.00 | 1 | -0.18 | 40 | -7.20 | |
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) | | | | Abierto Internacional Metropolitano Infantil U10 2018 | San Jose | CRC | 2018-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1139 | 1101 | 1.50 | 3 | 0.14 | 40 | 5.60 | |
| | Carrera Nicholson, Carlos Enrique | | | 1289 | PAN | 0.50 | 1 | 0.24 | 40 | 9.60 | | | Hernandez Perez, Javier Francisco | | | 1041 | CRC | 0.00 | 1 | -0.58 | 40 | -23.20 | | | Ramos Rodriguez, Daniel | | | 1086 | CRC | 1.00 | 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 |
| 1144 | 1101 | 1.00 | 3 | -0.32 | 40 | -12.80 | |
| | Mayorga Araya, Sofia | | | 1195 | CRC | 0.00 | 1 | -0.37 | 40 | -14.80 | | | Ramos Rodriguez, Daniel | | | 1086 | CRC | 0.00 | 1 | -0.52 | 40 | -20.80 | | | Ramirez Aguilar, Julian | | | 1151 | CRC | 1.00 | 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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