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Individual Calculations April 2009 |
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| Villarreal, Ivan Total change: 6.75 | |   |
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| 59 Abierto de Villa Ballester | Villa Ballester, Buenos Aires | ARG | 2009-01-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2010 | 1850 | 2.00 | 5 | 0.45 | 15 | 6.75 | |
|  Salvatti, Diego | | | 2183 | ARG | 0.50 | 1 | 0.38 | 15 | 5.70 | | | Campagnoni, Diego E. | | | 2110 | ARG | 0.50 | 1 | 0.32 | 15 | 4.80 | |  Nieva, Jose L. | | | 2108 | ARG | 0.00 | 1 | -0.18 | 15 | -2.70 | | | Amicone, Ricardo | | | 1678 | ARG | 1.00 | 1 | 0.27 | 15 | 4.05 | | | Goldwaser, Romina | | | 1971 | ARG | 0.00 | 1 | -0.34 | 15 | -5.10 | |
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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