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Individual Calculations February 2019 |
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| Segura Cordero, Ariel Total change: 13.60 | |   |
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| Abierto Internacional Metropolitano U14 2018 | San Jose | CRC | 2018-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1148 | 1348 | 3.00 | 5 | -0.66 | 40 | -26.40 | |
|  Briones Espino, Martin Daniel | | | 1489 | PAN | 0.00 | 1 | -0.31 | 40 | -12.40 | | | Hernandez Jimenez, Caleb | | | 1004 | CRC | 1.00 | 1 | 0.12 | 40 | 4.80 | | | Miranda Villalta, Jose Pablo | | | 1094 | CRC | 1.00 | 1 | 0.19 | 40 | 7.60 | |  Alvarez Ugalde, Isaac | | | 1073 | CRC | 0.00 | 1 | -0.83 | 40 | -33.20 | | | Vargas Abadia, Alejandro | | | 1080 | CRC | 1.00 | 1 | 0.17 | 40 | 6.80 | |
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) | | | | Campeonato Nacional Infantil Absoluto Sub12 2019 | San Jose | CRC | 2019-01-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1192 | 1348 | 4.50 | 5 | 1.00 | 40 | 40.00 | |
| | Miranda Villalta, Jose Pablo | | | 1094 | CRC | 1.00 | 1 | 0.19 | 40 | 7.60 | | | Frajman Kierszenson, Lior | | | 1223 | CRC | 0.50 | 1 | -0.17 | 40 | -6.80 | | | Barboza Viquez, Martin Eduardo | | | 1319 | CRC | 1.00 | 1 | 0.46 | 40 | 18.40 | | | Quiros Acuna, Sebastian | | | 1189 | CRC | 1.00 | 1 | 0.29 | 40 | 11.60 | | | Semana Ramirez, Brenda | | wc | 1137 | CRC | 1.00 | 1 | 0.23 | 40 | 9.20 | |
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) | | |
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