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Individual Calculations October 2008 |
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| Bermudez, Alexander Total change: -10.50 | |   |
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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 |
| 1938 | 2006 | 1.00 | 3 | -0.77 | 25 | -19.25 | |
|  Solano, Agustin | | | 2015 | CRC | 0.00 | 1 | -0.49 | 25 | -12.25 | |  Vargas Serano, Pablo | | | 1829 | CRC | 0.50 | 1 | -0.23 | 25 | -5.75 | | | Zoghaib, Charbel | | | 1970 | CRC | 0.50 | 1 | -0.05 | 25 | -1.25 | |
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 |
| 2205 | 2045 | 1.00 | 2 | 0.35 | 25 | 8.75 | |
| | Hernandez, Carlos | | | 2014 | CRC | 1.00 | 1 | 0.46 | 25 | 11.50 | | | Perez, Luis Manuel | m | | 2395 | CUB | 0.00 | 1 | -0.11 | 25 | -2.75 | |
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) | | |
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