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Individual Calculations March 2010 |
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| Contreras, Jose Total change: -25.65 | |   |
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| I Open IRT Circulo Peruano de Ajedrez | Lima | PER | 2010-01-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1995 | 2209 | 3.50 | 6 | -1.11 | 15 | -16.65 | |
|  Principe, Alexander | f | | 1917 | PER | 0.50 | 1 | -0.35 | 15 | -5.25 | |  Felix Vega, Aurora Edith | | wf | 1891 | PER | 1.00 | 1 | 0.13 | 15 | 1.95 | | | Cuellar, Diego | f | | 2055 | PER | 1.00 | 1 | 0.29 | 15 | 4.35 | | | Mamani, Joan Franco | | | 2093 | PER | 0.00 | 1 | -0.66 | 15 | -9.90 | | | Estrada, Santiago | | | 2046 | PER | 0.00 | 1 | -0.72 | 15 | -10.80 | | | Freyre, Rodrigo | | | 1970 | PER | 1.00 | 1 | 0.20 | 15 | 3.00 | |
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) | | | | III Open IRT Jose Marca In Memoriam Premier | Lima | PER | 2010-01-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2116 | 2209 | 5.00 | 9 | -0.60 | 15 | -9.00 | |
| | Llacsahuanga, Diego | | | 1976 | PER | 0.50 | 1 | -0.29 | 15 | -4.35 | | | Principe, Gerson | | | 2017 | PER | 0.50 | 1 | -0.25 | 15 | -3.75 | | | Gomez, Miguel | | | 2062 | PER | 1.00 | 1 | 0.30 | 15 | 4.50 | | | Aliaga Fernandez, Ingrid Y | | wf | 2122 | PER | 0.00 | 1 | -0.62 | 15 | -9.30 | | | Chumpitaz, Ann | | wf | 2021 | PER | 1.00 | 1 | 0.26 | 15 | 3.90 | | | Llanos, Walter | | | 2163 | PER | 1.00 | 1 | 0.44 | 15 | 6.60 | | | Henostroza, Cesar | | | 2189 | PER | 0.50 | 1 | -0.03 | 15 | -0.45 | | | Fernandez, Fernando | | | 2366 | PER | 0.00 | 1 | -0.29 | 15 | -4.35 | | | Calizaya, Marco | | | 2125 | PER | 0.50 | 1 | -0.12 | 15 | -1.80 | |
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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