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Individual Calculations July 2010 |
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| Castillo, Rommel Total change: -34.95 | |   |
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| II Copa Consultecnica | San Jose | CRC | 2010-02-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2074 | 2181 | 0.00 | 1 | -0.65 | 15 | -9.75 | |
|  Rodriguez, Adolfo | | | 2074 | CRC | 0.00 | 1 | -0.65 | 15 | -9.75 | |
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) | | | | Memorial Alekhine | San Jose | CRC | 2010-02-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2016 | 2181 | 2.00 | 5 | -1.49 | 15 | -22.35 | |
| | Ugalde, Ronald | | | 2139 | CRC | 0.00 | 1 | -0.56 | 15 | -8.40 | |  Vargas, Julio | | | 1802 | CRC | 1.00 | 1 | 0.09 | 15 | 1.35 | | | Esquivel, Jose Edmond | | | 1948 | CRC | 1.00 | 1 | 0.21 | 15 | 3.15 | | | Hernandez Alvarez, Tania Regla | | wm | 2136 | CUB | 0.00 | 1 | -0.56 | 15 | -8.40 | | | Minero Pineda, Carlos | | | 2053 | CRC | 0.00 | 1 | -0.67 | 15 | -10.05 | |
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) | | | | II Memorial Fischer | San Jose | CRC | 2010-04-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2281 | 2176 | 3.00 | 7 | 0.38 | 15 | 5.70 | |
| | Hevia Alejano, Carlos Antonio | f | | 2507 | CUB | 0.50 | 1 | 0.38 | 15 | 5.70 | | | Murillo, Alexis | m | | 2288 | CRC | 0.50 | 1 | 0.15 | 15 | 2.25 | | | Morales Romero, Pedro | f | | 2420 | CUB | 0.50 | 1 | 0.30 | 15 | 4.50 | | | Alvarado, Dizan Ernesto | | | 2027 | CRC | 0.50 | 1 | -0.20 | 15 | -3.00 | | | Davila, Carlos | m | | 2364 | NCA | 0.00 | 1 | -0.26 | 15 | -3.90 | | | Monge Calvo, Hugo | | | 1964 | CRC | 1.00 | 1 | 0.23 | 15 | 3.45 | | | Valdes, Leonardo | m | | 2395 | CRC | 0.00 | 1 | -0.22 | 15 | -3.30 | |
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 Por Equipos Liga Premier | Costa Rica | CRC | 2010-05-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2124 | 2176 | 0.00 | 1 | -0.57 | 15 | -8.55 | |
| | Ortiz, Marcos | | | 2124 | NCA | 0.00 | 1 | -0.57 | 15 | -8.55 | |
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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