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Individual Calculations December 2018 |
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| Johannsson, Birkir Isak Total change: 3.20 | |   |
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| Hasselbacken Open 2018 lang | Stockholm | SWE | 2018-11-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2140 | 1949 | 1.00 | 4 | -0.04 | 40 | -1.60 | |
|  Lindborg, Petter | | | 2225 | SWE | 0.50 | 1 | 0.33 | 40 | 13.20 | |  Jogstad, Daniel | | | 2061 | SWE | 0.50 | 1 | 0.15 | 40 | 6.00 | | | Harren, Mats | | | 2083 | SWE | 0.00 | 1 | -0.32 | 40 | -12.80 | | | Marttala, Thomas | | | 2189 | SWE | 0.00 | 1 | -0.20 | 40 | -8.00 | |
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) | | | | Icelandic Team Chess Championship 2018-19 2nd division Round 1-4 | Reykjavik | ISL | 2018-11-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1973 | 1949 | 2.00 | 4 | 0.12 | 40 | 4.80 | |
| | Lee, Gudmundur Kristinn | | | 1849 | ISL | 0.00 | 1 | -0.64 | 40 | -25.60 | | | Bjorgvinsson, Andri Freyr | | | 2069 | ISL | 1.00 | 1 | 0.66 | 40 | 26.40 | | | Kristjansson, Arni H | | | 1909 | ISL | 1.00 | 1 | 0.44 | 40 | 17.60 | | | Thorsteinsson, Erlingur | | | 2063 | ISL | 0.00 | 1 | -0.34 | 40 | -13.60 | |
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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