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Individual Calculations September 2011 |
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| Bustamante, Godofredo Total change: -12.75 | |   |
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| I OPEN IRT DE AJEDREZ “TOP CHESS” | LIMA, PERU | PER | 2011-05-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1994 | 1954 | 1.50 | 3 | 0.17 | 15 | 2.55 | |
|  Vasquez, Cesar | | | 1775 | PER | 1.00 | 1 | 0.27 | 15 | 4.05 | |  Llacsahuanga, Diego | | | 2081 | PER | 0.50 | 1 | 0.17 | 15 | 2.55 | | | Cuellar, Diego | f | | 2125 | PER | 0.00 | 1 | -0.27 | 15 | -4.05 | |
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) | | | | III IRT Internacional de Ajedrez Abierto “Puno Ciudad del Lago” | PUNO | PER | 2011-07-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1850 | 1954 | 2.50 | 6 | -1.02 | 15 | -15.30 | |
| | Calsina Jaen, Dino | | | 1554 * | PER | 1.00 | 1 | 0.08 | 15 | 1.20 | | | Iturry, William | | | 2228 | PER | 0.00 | 1 | -0.17 | 15 | -2.55 | | | Aguilar, Victor | | | 2112 | PER | 0.00 | 1 | -0.29 | 15 | -4.35 | | | Pachacama, Angel | | | 1554 * | PER | 1.00 | 1 | 0.08 | 15 | 1.20 | | | Iturry, Alvaro | | | 2100 | PER | 0.00 | 1 | -0.30 | 15 | -4.50 | | | Vilca, Javier | | | 1554 * | PER | 0.50 | 1 | -0.42 | 15 | -6.30 | | | * 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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