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Individual Calculations February 2019 |
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| Diaz Charpentier, Kristel Meliss Total change: -6.30 | |   |
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| Abierto Internacional Metropolitano U14 2018 | San Jose | CRC | 2018-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1254 | 1591 | 5.00 | 6 | -0.22 | 30 | -6.60 | |
|  Semana Ramirez, Brenda | | wc | 1191 * | CRC | 1.00 | 1 | 0.08 | 30 | 2.40 | |  Calderon Brenes, Brandon | | | 1279 | CRC | 1.00 | 1 | 0.14 | 30 | 4.20 | | | Rodriguez Retana, Sofia | | | 1249 | CRC | 1.00 | 1 | 0.12 | 30 | 3.60 | | | Solano Saltachin, Ruth | | | 1192 | CRC | 0.50 | 1 | -0.42 | 30 | -12.60 | | | Coto Calderon, Juan Diego | | | 1423 | CRC | 1.00 | 1 | 0.28 | 30 | 8.40 | | | Alvarez Ugalde, Isaac | | | 1191 * | CRC | 0.50 | 1 | -0.42 | 30 | -12.60 | | | * 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) | | | | Campeonato Nacional Femenino 2019 | San Jose | CRC | 2019-01-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1698 | 1591 | 3.00 | 9 | -0.44 | 30 | -13.20 | |
| | Castillo Morales, Thais | | wm | 1925 | CRC | 0.00 | 1 | -0.12 | 30 | -3.60 | | | Gamboa Alvarado, Olga Leticia | | wf | 1920 | CRC | 0.00 | 1 | -0.12 | 30 | -3.60 | | | Salazar Gould, Melanie | | wf | 1912 | CRC | 0.50 | 1 | 0.37 | 30 | 11.10 | | | Hernandez Leandro, Aliza | | | 1304 | CRC | 1.00 | 1 | 0.16 | 30 | 4.80 | | | Marin Leon, Valeria | | wc | 1681 | CRC | 0.50 | 1 | 0.12 | 30 | 3.60 | | | Mayorga Araya, Sofia | | | 1195 | CRC | 0.00 | 1 | -0.92 | 30 | -27.60 | | | Hernandez Alvarez, Tania Regla | | wm | 1991 * | CRC | 0.00 | 1 | -0.08 | 30 | -2.40 | | | Rodriguez Arrieta, Maria Elena | | wm | 1948 | CRC | 0.00 | 1 | -0.11 | 30 | -3.30 | | | Angulo Hernandez, Maria Jesus | | | 1406 | CRC | 1.00 | 1 | 0.26 | 30 | 7.80 | | | * 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) | | | | Campeonato Nacional Juvenil Absoluto Sub16 2019 | San Jose | CRC | 2019-01-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1534 | 1591 | 5.00 | 8 | 0.45 | 30 | 13.50 | |
| | Calderon Brenes, Brandon | | | 1279 | CRC | 1.00 | 1 | 0.14 | 30 | 4.20 | | | Blanco Gonzalez, Justin Jesus | | | 1418 | CRC | 0.50 | 1 | -0.23 | 30 | -6.90 | | | Shih Gould, Danny | f | | 1734 | CRC | 0.50 | 1 | 0.19 | 30 | 5.70 | | | Melendez Arce, Caleth | | | 1423 | CRC | 0.50 | 1 | -0.22 | 30 | -6.60 | | | Valverde Mora, Mauricio | | | 1651 | CRC | 1.00 | 1 | 0.58 | 30 | 17.40 | | | Cabezas Solano, David Alejandro | | | 1762 | CRC | 0.50 | 1 | 0.23 | 30 | 6.90 | | | Villegas Rodriguez, Jeremy | | | 1443 | CRC | 0.50 | 1 | -0.20 | 30 | -6.00 | | | Pastor Carvajal, Jeigoth | | | 1562 | CRC | 0.50 | 1 | -0.04 | 30 | -1.20 | |
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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