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Individual Calculations October 2008 |
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| Solis, Efren Total change: 8.10 | |   |
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| Campeonato Nacional de Costa Rica 2008 Fase 1 | Moravia | CRC | 2008-05-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2077 | 2120 | 3.00 | 6 | -0.35 | 15 | -5.25 | |
|  Zoghaib, Charbel | | | 1970 | CRC | 1.00 | 1 | 0.30 | 15 | 4.50 | |  Jimenez, Alonso | | | 2110 | CRC | 1.00 | 1 | 0.49 | 15 | 7.35 | | | Campos, Roberto | | | 2040 | CRC | 0.50 | 1 | -0.11 | 15 | -1.65 | | | Alfaro, Carlos | | | 2114 | CRC | 0.50 | 1 | -0.01 | 15 | -0.15 | | | Bermudez, Sergio | f | | 2180 | CRC | 0.00 | 1 | -0.42 | 15 | -6.30 | | | Cabrera, Marco Antonio | | | 2047 | 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) | | | | IV Torneo Internacional de Ajedrez Alajuela 2008 | Alajuela | CRC | 2008-07-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2236 | 2118 | 2.00 | 3 | 0.89 | 15 | 13.35 | |
| | Munoz, Carolina | | | 2032 | CRC | 1.00 | 1 | 0.38 | 15 | 5.70 | | | Salazar, Pablo | | | 2207 | CRC | 1.00 | 1 | 0.62 | 15 | 9.30 | | | Georgiev, Vladimir | g | | 2468 | MKD | 0.00 | 1 | -0.11 | 15 | -1.65 | |
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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