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Individual Calculations July 2008 |
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| Carvajal, Jonathan Total change: 17.85 | |   |
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| Campeonato Nacional de Costa Rica 2007 Fase I | San Jose | CRC | 2007-06-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2096 | 2142 | 6.00 | 8 | 1.51 | 15 | 22.65 | |
|  Vargas, Oliverio | | | 2067 | CRC | 1.00 | 1 | 0.40 | 15 | 6.00 | | | Bermudez, Sergio | f | | 2164 | CRC | 1.00 | 1 | 0.53 | 15 | 7.95 | |  Centeno, Erick | | | 2031 | CRC | 0.50 | 1 | -0.15 | 15 | -2.25 | | | Cabrera, Marco Antonio | | | 2047 | CRC | 1.00 | 1 | 0.37 | 15 | 5.55 | | | Alfaro Rojas, Alfonso | | | 2127 | CRC | 0.50 | 1 | -0.02 | 15 | -0.30 | | | Ugalde, Ronald | | | 2148 | CRC | 0.50 | 1 | 0.01 | 15 | 0.15 | | | Minero, Carlos | | | 2147 | CRC | 1.00 | 1 | 0.51 | 15 | 7.65 | | | Campos, Roberto | | | 2040 | CRC | 0.50 | 1 | -0.14 | 15 | -2.10 | |
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 de Costa Rica 2007 Final | San Jose | CRC | 2007-10-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2219 | 2142 | 5.50 | 13 | 0.27 | 15 | 4.05 | |
| | Leandro, Johnny | | | 2124 | CRC | 0.50 | 1 | -0.03 | 15 | -0.45 | | | Minero, Carlos | | | 2147 | CRC | 0.00 | 1 | -0.49 | 15 | -7.35 | | | Hernandez Basante, Francisco | m | | 2262 | CRC | 0.50 | 1 | 0.16 | 15 | 2.40 | | | Campos, Roberto | | | 2040 | CRC | 0.50 | 1 | -0.14 | 15 | -2.10 | | | Valdes, Leonardo | m | | 2401 | CRC | 1.00 | 1 | 0.82 | 15 | 12.30 | | | Ruiz Blais, Sebastian | | | 2121 | CRC | 0.50 | 1 | -0.03 | 15 | -0.45 | | | Charpentier, William | f | | 2236 | CRC | 0.50 | 1 | 0.13 | 15 | 1.95 | | | Arias Santana, Mauricio | m | | 2285 | CRC | 0.50 | 1 | 0.19 | 15 | 2.85 | | | Gonzalez, Bernal | m | | 2434 | CRC | 0.00 | 1 | -0.15 | 15 | -2.25 | | | Ugalde, Ronald | | | 2148 | CRC | 1.00 | 1 | 0.51 | 15 | 7.65 | | | Granados, Carlos | | | 2201 | CRC | 0.00 | 1 | -0.42 | 15 | -6.30 | | | Alfaro Rojas, Alfonso | | | 2127 | CRC | 0.00 | 1 | -0.52 | 15 | -7.80 | | | Murillo, Alexis | m | | 2322 | CRC | 0.50 | 1 | 0.24 | 15 | 3.60 | |
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) | | | | La Vega International Chess Open 2008 | La Vega | DOM | 2008-04-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2171 | 2173 | 1.50 | 4 | -0.59 | 15 | -8.85 | |
| | Mitkov, Nikola | g | | 2523 | MKD | 0.50 | 1 | 0.39 | 15 | 5.85 | | | Michelen, Victor Issac | | | 2062 | DOM | 0.00 | 1 | -0.65 | 15 | -9.75 | | | Castillo, Josue Natanael | | | 2014 | DOM | 0.00 | 1 | -0.71 | 15 | -10.65 | | | Tineo, Federico | | | 2085 | DOM | 1.00 | 1 | 0.38 | 15 | 5.70 | |
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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