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Individual Calculations September 2009 |
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| Balsategui Gonzalez, Aitor Total change: 18.50 | |   |
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| I Open Internacional de Ajderez Vitoria-Gasteiz | Vitoria | ESP | 2009-07-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2045 | 1717 | 1.00 | 2 | 0.74 | 25 | 18.50 | |
|  Arce Balluerca, Jorge | | | 2104 | ESP | 0.00 | 1 | -0.09 | 25 | -2.25 | | | Arce Balluerca, Oscar | | | 1985 | ESP | 1.00 | 1 | 0.83 | 25 | 20.75 | |
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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