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Individual Calculations September 2009 |
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| Guevara, Johnny Total change: -22.20 | |   |
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| XIV Grand Prix, 6ta. Parada "Fundacion de Guayaquil" | Guayaquil | ECU | 2009-07-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1717 | 2048 | 2.00 | 4 | -1.48 | 15 | -22.20 | |
|  Rezabala, Jordan | | | 1721 | ECU | 0.50 | 1 | -0.37 | 15 | -5.55 | |  Verdesoto Moreira, Carla | | | 1665 | ECU | 0.00 | 1 | -0.91 | 15 | -13.65 | | | Astudillo, Andres | | | 1648 * | ECU | 1.00 | 1 | 0.08 | 15 | 1.20 | | | Azua Avila, Vicente | | | 1832 | ECU | 0.50 | 1 | -0.28 | 15 | -4.20 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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