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Individual Calculations February 2019 |
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| Marin Leon, Valeria Total change: 3.00 | |   |
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| Campeonato Nacional Femenino 2019 | San Jose | CRC | 2019-01-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1706 | 1681 | 5.50 | 9 | 1.34 | 20 | 26.80 | |
|  Salazar Gould, Melanie | | wf | 1912 | CRC | 1.00 | 1 | 0.79 | 20 | 15.80 | |  Rodriguez Arrieta, Maria Elena | | wm | 1948 | CRC | 0.00 | 1 | -0.18 | 20 | -3.60 | | | Hernandez Leandro, Aliza | | | 1304 | CRC | 1.00 | 1 | 0.09 | 20 | 1.80 | | | Angulo Hernandez, Maria Jesus | | | 1406 | CRC | 1.00 | 1 | 0.17 | 20 | 3.40 | | | Diaz Charpentier, Kristel Meliss | | | 1591 | CRC | 0.50 | 1 | -0.12 | 20 | -2.40 | | | Castillo Morales, Thais | | wm | 1925 | CRC | 0.00 | 1 | -0.20 | 20 | -4.00 | | | Mayorga Araya, Sofia | | | 1281 * | CRC | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Gamboa Alvarado, Olga Leticia | | wf | 1920 | CRC | 0.50 | 1 | 0.30 | 20 | 6.00 | | | Hernandez Alvarez, Tania Regla | | wm | 2063 | CRC | 0.50 | 1 | 0.41 | 20 | 8.20 | | | * 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 Sub20 2019 | San Jose | CRC | 2019-01-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1526 | 1681 | 3.50 | 7 | -1.19 | 20 | -23.80 | |
| | Moya Salas, Frander | | | 1281 * | CRC | 0.50 | 1 | -0.42 | 20 | -8.40 | | | Duque Araya, Cristopher | | | 1505 | CRC | 1.00 | 1 | 0.27 | 20 | 5.40 | | | Castillo Morales, Thais | | wm | 1925 | CRC | 0.00 | 1 | -0.20 | 20 | -4.00 | | | Mora Melendez, Jose Pablo | | | 1382 | CRC | 1.00 | 1 | 0.15 | 20 | 3.00 | | | Sandi Castro, Allan | | | 1308 | CRC | 1.00 | 1 | 0.10 | 20 | 2.00 | | | Valdez Torres, Nestor Josue | | | 1790 | CRC | 0.00 | 1 | -0.35 | 20 | -7.00 | | | Granados Wing, Brian Saul | | | 1494 | CRC | 0.00 | 1 | -0.74 | 20 | -14.80 | | | * 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) | | |
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