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Individual Calculations July 2009 |
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| Bustamante, Godofredo Total change: -16.50 | |   |
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| XIV Grand Prix, 3era. Parada | Guayaquil | ECU | 2009-04-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1904 | 1994 | 2.50 | 5 | -0.50 | 15 | -7.50 | |
|  Rosales Murillo, Cristina | | | 1649 | ECU | 1.00 | 1 | 0.11 | 15 | 1.65 | | | Guerrero Fuentes, Carlos | | | 2155 | ECU | 0.00 | 1 | -0.29 | 15 | -4.35 | |  Godoy Mendia, Alex | | | 1808 | ECU | 1.00 | 1 | 0.26 | 15 | 3.90 | | | Chang Suarez, Andres | | | 2140 | ECU | 0.00 | 1 | -0.30 | 15 | -4.50 | | | De Mora, Jonathan | | | 1770 | ECU | 0.50 | 1 | -0.28 | 15 | -4.20 | |
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) | | | | TORNEO REGIONAL METROPOLITANO | Lima | PER | 2009-05-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2082 | 1994 | 1.00 | 4 | -0.52 | 15 | -7.80 | |
| | Chiarot, Cesar | | | 2122 | PER | 0.00 | 1 | -0.33 | 15 | -4.95 | | | Morales Nino, Luis | | | 2060 | PER | 1.00 | 1 | 0.59 | 15 | 8.85 | | | Leon, Juan Carlos | | | 2110 | PER | 0.00 | 1 | -0.34 | 15 | -5.10 | | | Alarcon Salas, Arturo | | | 2034 | PER | 0.00 | 1 | -0.44 | 15 | -6.60 | |
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) | | | | LIV Campeonato Nacional Absoluto | Lima | PER | 2009-05-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2083 | 1994 | 1.50 | 4 | -0.08 | 15 | -1.20 | |
| | Mejia Rodriguez, Victor | | | 2309 | PER | 0.00 | 1 | -0.14 | 15 | -2.10 | | | Estrada, Santiago | | | 2096 | PER | 0.00 | 1 | -0.36 | 15 | -5.40 | | | Zuniga, Ivan | | | 1999 | PER | 1.00 | 1 | 0.51 | 15 | 7.65 | | | Benique Cabrera, Cesar Rem | | | 1926 | PER | 0.50 | 1 | -0.09 | 15 | -1.35 | |
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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