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Individual Calculations February 2019 |
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| Ramos Rodriguez, Daniel Total change: 63.60 | |   |
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| Abierto Internacional Metropolitano Infantil U10 2018 | San Jose | CRC | 2018-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1185 | 1086 | 1.00 | 3 | -0.11 | 40 | -4.40 | |
|  Mayorga Araya, Sofia | | | 1166 | CRC | 1.00 | 1 | 0.61 | 40 | 24.40 | |  Carrera Nicholson, Carlos Enrique | | | 1289 | PAN | 0.00 | 1 | -0.24 | 40 | -9.60 | | | Salazar Artavia, Keylor | | | 1101 | 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 |
| 1122 | 1086 | 3.50 | 4 | 1.70 | 40 | 68.00 | |
| | Hernandez Perez, Javier Francisco | | | 1041 | CRC | 1.00 | 1 | 0.44 | 40 | 17.60 | | | Mayorga Araya, Sofia | | | 1195 | CRC | 1.00 | 1 | 0.65 | 40 | 26.00 | | | Salazar Artavia, Keylor | | | 1101 | CRC | 1.00 | 1 | 0.52 | 40 | 20.80 | | | Ramirez Aguilar, Julian | | | 1151 | CRC | 0.50 | 1 | 0.09 | 40 | 3.60 | |
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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