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Individual Calculations September 2021 |
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| Johannsson, Birkir Isak Total change: 31.80 | |   |
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| Islandsmotid i skak - askorendaflokkur 2021 | Reykjavik | ISL | 2021-08-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2002 | 2052 | 6.50 | 9 | 1.59 | 20 | 31.80 | |
|  Johannsson, Markus Orri | | | 1652 * | ISL | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Bergsson, Stefan | | | 2158 | ISL | 0.50 | 1 | 0.14 | 20 | 2.80 | | | Hardarson, Petur Palmi | | | 2084 | ISL | 0.50 | 1 | 0.04 | 20 | 0.80 | | | Ptacnikova, Lenka | | wg | 2109 | ISL | 1.00 | 1 | 0.58 | 20 | 11.60 | | | Mai, Alexander Oliver | | | 2090 | ISL | 1.00 | 1 | 0.55 | 20 | 11.00 | | | Thorhallsson, Simon | | | 2199 | ISL | 0.00 | 1 | -0.30 | 20 | -6.00 | | | Baldursson, Hrannar | | | 2148 | ISL | 1.00 | 1 | 0.63 | 20 | 12.60 | | | Jonsson, Johann | | | 1723 | ISL | 1.00 | 1 | 0.12 | 20 | 2.40 | | | Briem, Benedikt | | | 1858 | ISL | 0.50 | 1 | -0.25 | 20 | -5.00 | | | * 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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