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Individual Calculations December 2017 |
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| Birkisson, Bardur Orn Total change: -7.60 | |   |
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| Gardabaer Championship 2017 | Gardabaer | ISL | 2017-10-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2077 | 2164 | 4.50 | 7 | 0.30 | 40 | 12.00 | |
|  Ulfljotsson, Jon | | | 1764 * | ISL | 0.50 | 1 | -0.42 | 40 | -16.80 | |  Heimisson, Hilmir Freyr | | | 2185 | ISL | 1.00 | 1 | 0.53 | 40 | 21.20 | | | Birkisson, Bjorn Holm | | | 2023 | ISL | 0.50 | 1 | -0.19 | 40 | -7.60 | | | Viglundsson, Bjorgvin | | | 2143 | ISL | 0.50 | 1 | -0.03 | 40 | -1.20 | | | Stefansson, Vignir Vatnar | f | | 2300 | ISL | 1.00 | 1 | 0.68 | 40 | 27.20 | | | Karcher, Patrick | | | 2113 | GER | 0.50 | 1 | -0.07 | 40 | -2.80 | | | Jonsson, Gauti Pall | | | 2011 | ISL | 0.50 | 1 | -0.20 | 40 | -8.00 | | | * 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) | | | | Reykjavik Northern Lights Open 2017 | Reykjavik | ISL | 2017-11-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2242 | 2198 | 3.50 | 9 | -0.49 | 40 | -19.60 | |
| | Hebden, Mark L | g | | 2460 | ENG | 0.00 | 1 | -0.18 | 40 | -7.20 | | | Jaksland, Tim | f | | 2168 | DEN | 0.50 | 1 | -0.04 | 40 | -1.60 | | | Ptacnikova, Lenka | | wg | 2232 | ISL | 0.50 | 1 | 0.05 | 40 | 2.00 | | | Heimisson, Hilmir Freyr | c | | 2190 | ISL | 0.50 | 1 | -0.01 | 40 | -0.40 | | | Jensson, Einar Hjalti | m | | 2372 | ISL | 0.50 | 1 | 0.23 | 40 | 9.20 | | | Kaufman, Raymond | m | | 2266 | USA | 0.50 | 1 | 0.09 | 40 | 3.60 | | | Gislason, Gudmundur | f | | 2318 | ISL | 0.00 | 1 | -0.34 | 40 | -13.60 | | | Birkisson, Bjorn Holm | | | 2002 | ISL | 0.50 | 1 | -0.25 | 40 | -10.00 | | | Ingvason, Johann | | | 2172 | ISL | 0.50 | 1 | -0.04 | 40 | -1.60 | |
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) | | |
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