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Individual Calculations January 2009 |
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| Ugalde, Ronald Total change: -13.80 | |   |
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| III Internacional Bolsa de Valores | Santa Ana | CRC | 2008-09-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2190 | 2146 | 1.00 | 3 | -0.35 | 15 | -5.25 | |
|  Valdes, Leonardo | m | | 2408 | CRC | 0.00 | 1 | -0.18 | 15 | -2.70 | |  Carvajal Gorgona, Jonathan | | | 2191 | CRC | 0.00 | 1 | -0.44 | 15 | -6.60 | | | Da Bosco, Carla | | wf | 1971 | CRC | 1.00 | 1 | 0.27 | 15 | 4.05 | |
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) | | | | Metropolitano 2008 | San Jose | CRC | 2008-12-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2027 | 2134 | 2.00 | 4 | -0.57 | 15 | -8.55 | |
| | Angulo Cubero, Oscar | | | 1950 | CRC | 0.00 | 1 | -0.74 | 15 | -11.10 | | | Gomez Huertas, Stanley | | | 1978 | CRC | 0.50 | 1 | -0.21 | 15 | -3.15 | | | Needham, Bryan | | | 2022 | CRC | 1.00 | 1 | 0.35 | 15 | 5.25 | | | Granados, Carlos | | | 2156 | CRC | 0.50 | 1 | 0.03 | 15 | 0.45 | |
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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