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Individual Calculations April 2009 |
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| Guzman, Percy Total change: -21.75 | |   |
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| III IRT CLUB PERUANO DE AJEDREZ | Lima | PER | 2009-01-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1953 | 1994 | 1.50 | 3 | -0.13 | 25 | -3.25 | |
|  Balvin, Jorge | | | 1674 | PER | 0.00 | 1 | -0.87 | 25 | -21.75 | |  Principe, Gerson | | | 1975 | PER | 1.00 | 1 | 0.47 | 25 | 11.75 | | | Vega, Marcelino | | | 2209 | PER | 0.50 | 1 | 0.27 | 25 | 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) | | | | V IRT CLUB PERUANO DE AJEDREZ | Lima | PER | 2009-03-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2098 | 1994 | 0.00 | 2 | -0.74 | 25 | -18.50 | |
| | Vera Siguenas, Deivy | | | 2221 | PER | 0.00 | 1 | -0.21 | 25 | -5.25 | | | Principe, Gerson | | | 1975 | PER | 0.00 | 1 | -0.53 | 25 | -13.25 | |
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) | | |
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