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Individual Calculations February 2018 |
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| Castro Garcia, Ileana Total change: -56.40 | |   |
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| Campeonato Nacional Femenino 2018 | San Jose | CRC | 2018-01-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1802 | 1581 | 1.00 | 11 | -1.70 | 20 | -34.00 | |
|  Salas Estrada, Ana Maria | | | 1361 | CRC | 0.00 | 1 | -0.78 | 20 | -15.60 | |  Rodriguez Arrieta, Maria Elena | | wm | 1964 | CRC | 0.00 | 1 | -0.09 | 20 | -1.80 | | | Salazar Gould, Melanie | | wf | 1763 | CRC | 0.00 | 1 | -0.26 | 20 | -5.20 | | | Morera Campos, Hazel Maria | | wm | 1826 | CRC | 0.50 | 1 | 0.30 | 20 | 6.00 | | | Bogantes Robleto, Karina | | | 1660 | CRC | 0.00 | 1 | -0.39 | 20 | -7.80 | | | Marin Leon, Valeria | | wc | 1708 | CRC | 0.00 | 1 | -0.33 | 20 | -6.60 | | | Morera Campos, Yanori Maria | | wc | 1949 | CRC | 0.00 | 1 | -0.10 | 20 | -2.00 | | | Hernandez Alvarez, Tania Regla | | wm | 1981 * | CRC | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Castillo Morales, Thais | | wf | 1928 | CRC | 0.00 | 1 | -0.11 | 20 | -2.20 | | | Nunez Gonzalez, Neeshmy | | wc | 1807 | CRC | 0.00 | 1 | -0.21 | 20 | -4.20 | | | Gamboa Alvarado, Olga Leticia | | wf | 1876 | CRC | 0.50 | 1 | 0.35 | 20 | 7.00 | | | * 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 Sub20 2018 | Heredia | CRC | 2018-01-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1510 | 1581 | 3.00 | 7 | -1.12 | 20 | -22.40 | |
| | Serrano Marin, Jorge | | | 1537 | CRC | 0.00 | 1 | -0.56 | 20 | -11.20 | | | Solis Baltodano, Jose Pablo | | | 1446 | CRC | 0.50 | 1 | -0.18 | 20 | -3.60 | | | Porras Chavarria, Steve | | | 1818 | CRC | 0.00 | 1 | -0.20 | 20 | -4.00 | | | Chaves Alfaro, Beatriz | | | 1344 | CRC | 1.00 | 1 | 0.20 | 20 | 4.00 | | | Sandi Castro, Allan | | | 1294 | CRC | 1.00 | 1 | 0.16 | 20 | 3.20 | | | Castro Ulloa, Rolando | | | 1666 | CRC | 0.00 | 1 | -0.38 | 20 | -7.60 | | | Bustamante Grijalba, Ariadna | | | 1462 | CRC | 0.50 | 1 | -0.16 | 20 | -3.20 | |
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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