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Individual Calculations July 2009 |
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| Minero Pineda, Carlos Total change: -41.40 | |   |
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| Copa Ocean Grupo A | San José | CRC | 2009-01-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2126 | 2094 | 0.50 | 2 | -0.41 | 15 | -6.15 | |
|  Minero Pineda, Boris | | | 2124 | CRC | 0.50 | 1 | 0.04 | 15 | 0.60 | |  Solis Gaitan, Efren | | | 2128 | CRC | 0.00 | 1 | -0.45 | 15 | -6.75 | |
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) | | | | Copa Parque del Norte | San José | CRC | 2009-04-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2021 | 2094 | 0.50 | 4 | -1.89 | 15 | -28.35 | |
| | Duran Vega, Andres | | | 1933 | CRC | 0.00 | 1 | -0.71 | 15 | -10.65 | | | Solis Gaitan, Efren | | | 2124 | CRC | 0.00 | 1 | -0.46 | 15 | -6.90 | | | Gomez Huertas, Stanley | | | 2007 | CRC | 0.50 | 1 | -0.12 | 15 | -1.80 | | | Machado Ramirez, Allan | | | 2019 | CRC | 0.00 | 1 | -0.60 | 15 | -9.00 | |
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) | | | | Costa Rican National Championship Phase 1.2 | Moravia | CRC | 2009-06-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2056 | 2094 | 4.50 | 9 | -0.46 | 15 | -6.90 | |
| | Vega, Edwin | | | 2065 | CRC | 1.00 | 1 | 0.46 | 15 | 6.90 | | | Alfaro, Carlos | | | 2104 | CRC | 0.00 | 1 | -0.49 | 15 | -7.35 | | | Campos Cerdas, Jorge | | | 2027 | CRC | 1.00 | 1 | 0.41 | 15 | 6.15 | | | Montenegro, Pedro | | | 2056 | CRC | 0.00 | 1 | -0.55 | 15 | -8.25 | | | Minero Pineda, Boris | | | 2124 | CRC | 0.50 | 1 | 0.04 | 15 | 0.60 | | | Gomez Huertas, Stanley | | | 2007 | CRC | 1.00 | 1 | 0.38 | 15 | 5.70 | | | Vargas Serano, Pablo | | | 1976 | CRC | 1.00 | 1 | 0.34 | 15 | 5.10 | | | Granados, Carlos | | | 2128 | CRC | 0.00 | 1 | -0.45 | 15 | -6.75 | | | Machado Ramirez, Allan | | | 2019 | CRC | 0.00 | 1 | -0.60 | 15 | -9.00 | |
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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