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Individual Calculations January 2012 |
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| Carvajal Gorgona, Jonathan Total change: -7.35 | |   |
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| Abierto Joaquin Gutierrez i.m. | San Jose | CRC | 2011-10-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2010 | 2177 | 4.00 | 6 | -0.20 | 15 | -3.00 | |
|  Nadal Monzonis, Jorge | | | 1777 * | ESP | 1.00 | 1 | 0.08 | 15 | 1.20 | |  Arroyo, Luis | | | 1937 | CRC | 1.00 | 1 | 0.20 | 15 | 3.00 | | | Duran Vega, Andres | | | 2004 | CRC | 1.00 | 1 | 0.27 | 15 | 4.05 | | | Solis, Efren | | | 2073 | CRC | 1.00 | 1 | 0.36 | 15 | 5.40 | | | Chinchilla, Eugenio | f | | 2266 | CRC | 0.00 | 1 | -0.38 | 15 | -5.70 | | | Alvarez Hernandez, David | | | 2004 | CRC | 0.00 | 1 | -0.73 | 15 | -10.95 | | | * 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) | | | | Abierto Metropolitano | San Jose | CRC | 2011-12-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1944 | 2178 | 0.50 | 1 | -0.29 | 15 | -4.35 | |
| | Nunez Valverde, Jairo | | | 1944 | CRC | 0.50 | 1 | -0.29 | 15 | -4.35 | |
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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