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Individual Calculations January 2009 |
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| Arias Santana, Mauricio Total change: 11.55 | |   |
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| Metropolitano 2008 | San Jose | CRC | 2008-12-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2141 | 2332 | 4.50 | 5 | 0.77 | 15 | 11.55 | |
|  Toro Soto, Anthony | | | 2115 | CRC | 1.00 | 1 | 0.22 | 15 | 3.30 | | | Castillo, Rommel | | | 2119 | NCA | 1.00 | 1 | 0.23 | 15 | 3.45 | |  Solis, Efren | | | 2126 | CRC | 1.00 | 1 | 0.24 | 15 | 3.60 | | | Carvajal Gorgona, Jonathan | | | 2140 | CRC | 1.00 | 1 | 0.25 | 15 | 3.75 | | | Ruiz Blais, Sebastian | | | 2207 | CRC | 0.50 | 1 | -0.17 | 15 | -2.55 | |
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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