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Individual Calculations July 2009 |
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| Arrieta Gonzalez, Arkaitz Total change: -19.75 | |   |
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| Campeonato de Guipuzcoa por Equipos Preferente | Donostia San Sebastian | ESP | 2009-01-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1904 | 1959 | 1.50 | 4 | -0.79 | 25 | -19.75 | |
|  Peteiro Osta, Luis Angel | | | 1958 | ESP | 0.50 | 1 | 0.00 | 25 | 0.00 | | | Arana Garate, Jon | | | 1966 | ESP | 0.00 | 1 | -0.49 | 25 | -12.25 | |  Etxagibel Larranaga, Asier | | | 1909 | ESP | 0.50 | 1 | -0.07 | 25 | -1.75 | | | Barrientos Gonzalez, Ander | | | 1784 | ESP | 0.50 | 1 | -0.23 | 25 | -5.75 | |
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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