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Individual Calculations May 2012 |
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| Alvarado, Dizan Ernesto Total change: 15.75 | |   |
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| Nacional Abierto 2011 Jorge van der Laat Ulloa | San Jose | CRC | 2012-02-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2100 | 1993 | 1.50 | 3 | 0.41 | 15 | 6.15 | |
|  Chinchilla, Eugenio | f | | 2225 | CRC | 0.00 | 1 | -0.21 | 15 | -3.15 | | | Vega, Edwin | | | 2037 | CRC | 0.50 | 1 | 0.06 | 15 | 0.90 | |  Vargas Serano, Pablo | | | 2039 | CRC | 1.00 | 1 | 0.56 | 15 | 8.40 | |
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) | | | | Boanerges Navarro In Memoriam 2012 Grupo A | Moravia | CRC | 2012-03-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2097 | 1993 | 2.50 | 5 | 0.64 | 15 | 9.60 | |
| | Murillo Tsijli, Alexis | m | | 2305 | CRC | 0.50 | 1 | 0.36 | 15 | 5.40 | | | Urbina Quiros, Edwin | | | 2106 | CRC | 1.00 | 1 | 0.65 | 15 | 9.75 | | | Gutierrez, Oscar | | | 2080 | NCA | 1.00 | 1 | 0.62 | 15 | 9.30 | | | Chinchilla, Eugenio | f | | 2225 | CRC | 0.00 | 1 | -0.21 | 15 | -3.15 | | | Buitrago Mosquera, Antonio | | | 1768 | CRC | 0.00 | 1 | -0.78 | 15 | -11.70 | |
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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