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Individual Calculations October 2008 |
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| Ugalde, Ronald Total change: -11.70 | |   |
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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 |
| 2081 | 2142 | 2.50 | 5 | -0.42 | 15 | -6.30 | |
|  Peraza, Rafael | | | 2023 | CRC | 0.50 | 1 | -0.16 | 15 | -2.40 | |  Campos, Roberto | | | 2040 | CRC | 0.50 | 1 | -0.14 | 15 | -2.10 | | | Alfaro, Carlos | | | 2114 | CRC | 1.00 | 1 | 0.46 | 15 | 6.90 | | | Bermudez, Sergio | f | | 2180 | CRC | 0.50 | 1 | 0.05 | 15 | 0.75 | | | Cabrera, Marco Antonio | | | 2047 | CRC | 0.00 | 1 | -0.63 | 15 | -9.45 | |
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) | | | | IV Torneo Internacional de Ajedrez Alajuela 2008 | Alajuela | CRC | 2008-07-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2413 | 2146 | 0.00 | 2 | -0.36 | 15 | -5.40 | |
| | Sagalchik, Gennadij | g | | 2424 | USA | 0.00 | 1 | -0.17 | 15 | -2.55 | | | Fernandez, Daniel | m | | 2401 | USA | 0.00 | 1 | -0.19 | 15 | -2.85 | |
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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