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Individual Calculations December 2012 |
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| Parra Matute, Mario Total change: -1.80 | |   |
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| XVII Grand Prix, 8ta. Parada | Quevedo | ECU | 2012-09-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1907 | 1658 | 0.50 | 3 | -0.12 | 15 | -1.80 | |
|  Pulla Armijos, Oscar | | | 2056 | ECU | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Lasso, Jose | | | 1851 | ECU | 0.00 | 1 | -0.25 | 15 | -3.75 | |  Luzon Guaman, Edison | | | 1815 | ECU | 0.50 | 1 | 0.21 | 15 | 3.15 | |
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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