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Individual Calculations October 2021 |
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| Koellner, Aaron Noah Total change: -32.80 | |   |
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| European Individual Chess Championship - Reykjavik Open 2021 | Reykjavik | ISL | 2021-08-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2040 | 2248 | 5.00 | 11 | -3.06 | 20 | -61.20 | |
|  Ter-Sahakyan, Samvel | g | | 2624 | ARM | 0.00 | 1 | -0.09 | 20 | -1.80 | |  Hjaltason, Elvar Orn | | | 1848 * | ISL | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Sebenik, Matej | g | | 2492 | SLO | 0.00 | 1 | -0.20 | 20 | -4.00 | | | Heidarsson, Arnar Milutin | | | 1916 | ISL | 0.00 | 1 | -0.88 | 20 | -17.60 | | | Jonsson, Olafur Gisli | | | 1848 * | ISL | 0.00 | 1 | -0.92 | 20 | -18.40 | | | Gudnyjarson, Sigurdur Pall | | | 1848 * | ISL | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Maggason, Oskar | | | 1848 * | ISL | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Johannsson, Birkir Isak | | | 2052 | ISL | 0.00 | 1 | -0.75 | 20 | -15.00 | | | Nielsen, Thomas | | | 1953 | DEN | 1.00 | 1 | 0.15 | 20 | 3.00 | | | Johannsdottir, Johanna Bjorg | | | 2019 | ISL | 0.00 | 1 | -0.79 | 20 | -15.80 | | | Petursson, Gudni | | | 1988 | ISL | 1.00 | 1 | 0.18 | 20 | 3.60 | | | * 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) | | | | 1. Int. Swiss-Masters Baden-Baden | Baden-Baden | GER | 2021-09-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2261 | 2191 | 4.50 | 9 | 0.73 | 20 | 14.60 | |
| | Schmaltz, Roland | g | | 2454 | GER | 0.50 | 1 | 0.32 | 20 | 6.40 | | | Riff, Jean-Noel | g | | 2463 | FRA | 0.00 | 1 | -0.17 | 20 | -3.40 | | | Pfatteicher, Lukas | | | 2212 | GER | 1.00 | 1 | 0.53 | 20 | 10.60 | | | Morgunov, Marc | f | | 2386 | AUT | 1.00 | 1 | 0.75 | 20 | 15.00 | | | Bellahcene, Bilel | g | | 2522 | ALG | 0.00 | 1 | -0.12 | 20 | -2.40 | | | Hagner, Bennet | | | 2034 | GER | 0.00 | 1 | -0.71 | 20 | -14.20 | | | Mattenberger, Matthias | | | 2003 | SUI | 1.00 | 1 | 0.26 | 20 | 5.20 | | | Hommer, Jeremy | | | 2278 | GER | 0.50 | 1 | 0.12 | 20 | 2.40 | | | Bashylina, Luisa | | wc | 2000 | GER | 0.50 | 1 | -0.25 | 20 | -5.00 | |
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) | | | | Oberliga Wuerttemberg 2021/2022 September 2021 | various | GER | 2021-09-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2331 | 2191 | 1.00 | 1 | 0.69 | 20 | 13.80 | |
| | Zuferi, Enis | f | | 2331 | GER | 1.00 | 1 | 0.69 | 20 | 13.80 | |
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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