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Individual Calculations July 2012 |
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| Zahner, Rolf Total change: 20.85 | |   |
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| San Bernardino Holiday Chess Open | San Bernardino | SUI | 2012-03-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2017 | 1665 | 0.50 | 5 | -0.07 | 15 | -1.05 | |
|  Salvetti, Alec | f | | 2065 * | ITA | 0.00 | 1 | -0.08 | 15 | -1.20 | |  Medici, Simone | | | 2065 * | SUI | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Boschetti, Claudio | | | 2065 * | SUI | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Scheidegger, Urs | | | 1951 | SUI | 0.00 | 1 | -0.16 | 15 | -2.40 | | | Onda, Walter | | | 1940 | SUI | 0.50 | 1 | 0.33 | 15 | 4.95 | | | * 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) | | | | Paradiso Chess Festival B 2012 | Lugano | SUI | 2012-05-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1807 | 1661 | 3.00 | 5 | 1.46 | 15 | 21.90 | |
| | Le Bris, Louis | | | 1823 | FRA | 0.50 | 1 | 0.21 | 15 | 3.15 | | | Graf, Stefan | | | 1698 | SUI | 1.00 | 1 | 0.55 | 15 | 8.25 | | | Grigioni, Giulio | | | 1834 | ITA | 0.50 | 1 | 0.23 | 15 | 3.45 | | | Grudina, Marco | | | 1820 | ITA | 0.50 | 1 | 0.21 | 15 | 3.15 | | | Nai, Giovanni | | | 1860 | ITA | 0.50 | 1 | 0.26 | 15 | 3.90 | |
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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