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Individual Calculations April 2009 |
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| Leon Magallanes, Isaac Total change: 11.75 | |   |
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| XIV Grand Prix, Primera Parada | Ambato | ECU | 2009-01-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1906 | 1810 | 1.50 | 3 | 0.35 | 25 | 8.75 | |
|  Rivera Ochoa, Byron | | | 1671 | ECU | 0.50 | 1 | -0.19 | 25 | -4.75 | | | Quishpe Vaca, Andres | | | 2074 | ECU | 0.00 | 1 | -0.18 | 25 | -4.50 | |  Levy Ortiz, Mireya | | | 1973 | ECU | 1.00 | 1 | 0.72 | 25 | 18.00 | |
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) | | | | XIV Grand Prix, Segunda Parada | Guayaquil | ECU | 2009-02-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1898 | 1810 | 0.50 | 1 | 0.12 | 25 | 3.00 | |
| | Lozano Urgiles, Gonzalo | | | 1898 | ECU | 0.50 | 1 | 0.12 | 25 | 3.00 | |
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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