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Individual Calculations October 2012 |
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| Vega Araya, Edwin Total change: -23.25 | |   |
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| Memorial Rosa Castro 2012 | Moravia | CRC | 2012-08-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2182 | 2011 | 0.00 | 2 | -0.56 | 15 | -8.40 | |
|  Alfaro, William | f | | 2129 | NCA | 0.00 | 1 | -0.34 | 15 | -5.10 | | | Hernandez Basante, Francisco | m | | 2235 | 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 Abierto 2012 | San Jose | CRC | 2012-08-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2105 | 2011 | 0.50 | 4 | -0.99 | 15 | -14.85 | |
| | Chinchilla, Eugenio, Mf | f | | 2183 | CRC | 0.50 | 1 | 0.23 | 15 | 3.45 | | | Jimenez Garcia, Emanuel, Mn | | | 2069 | CRC | 0.00 | 1 | -0.42 | 15 | -6.30 | |  Vargas Serano, Pablo | | | 2031 | CRC | 0.00 | 1 | -0.47 | 15 | -7.05 | | | Jimenez, Alonso, Mn | | | 2137 | CRC | 0.00 | 1 | -0.33 | 15 | -4.95 | |
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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