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Individual Calculations February 2019 |
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| Ramirez Marchena, Carlos Andres Total change: 156.40 | |   |
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| Abierto Internacional Metropolitano B 2018 | San Jose | CRC | 2018-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1474 | 1538 | 5.50 | 7 | 1.52 | 40 | 60.80 | |
|  Salas Estrada, Ana Maria | | | 1320 | CRC | 0.50 | 1 | -0.28 | 40 | -11.20 | |  Soza Rojas, Dannilson G | | | 1173 | CRC | 1.00 | 1 | 0.10 | 40 | 4.00 | | | Hernandez Leandro, Aliza | | | 1311 | CRC | 1.00 | 1 | 0.21 | 40 | 8.40 | | | Castro Garcia, Ileana | | wc | 1496 | CRC | 1.00 | 1 | 0.44 | 40 | 17.60 | | | Nunez Okubo, Isao | c | | 1685 | CRC | 1.00 | 1 | 0.70 | 40 | 28.00 | | | Arce Mendez, Elias | | | 1684 | CRC | 0.50 | 1 | 0.20 | 40 | 8.00 | | | Herrera Boschini, Gabriel | | | 1647 | CRC | 0.50 | 1 | 0.15 | 40 | 6.00 | |
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 Sub18 2019 | San Jose | CRC | 2019-01-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1639 | 1560 | 6.00 | 9 | 2.39 | 40 | 95.60 | |
| | Alvarez Alvarez, Jonahel | | | 1160 * | CRC | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Arguedas Bolanos, Sharline | | | 1362 | CRC | 1.00 | 1 | 0.24 | 40 | 9.60 | | | Zeledon Perez, Edgar | | | 1882 | CRC | 1.00 | 1 | 0.87 | 40 | 34.80 | | | Rosales Gonzalez, Erick Josue | | | 1627 | CRC | 1.00 | 1 | 0.59 | 40 | 23.60 | | | Ramirez Madrid, Gerardo Alfonso | f | | 1960 * | CRC | 0.50 | 1 | 0.42 | 40 | 16.80 | | | Solano Cordero, Jorge | | | 1739 | CRC | 0.00 | 1 | -0.27 | 40 | -10.80 | | | Torres Romero, Cristhian | | | 1594 | CRC | 0.50 | 1 | 0.05 | 40 | 2.00 | | | Mata Tencio, Randall | | | 1660 | CRC | 0.50 | 1 | 0.14 | 40 | 5.60 | | | Quesada Leon, Joshua | | | 1770 | CRC | 0.50 | 1 | 0.27 | 40 | 10.80 | | | * 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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