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Individual Calculations December 2018 |
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| Ragnarsson, Johann Total change: 21.00 | |   |
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| Skakthing Gardabaejar 2018 - umf 5-7 | Gardabaer | ISL | 2018-10-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1762 | 2007 | 2.50 | 3 | 0.22 | 20 | 4.40 | |
|  Birkisson, Bjorn Holm | | | 2033 | ISL | 0.50 | 1 | 0.04 | 20 | 0.80 | |  Magnusson, Thorsteinn | | | 1607 * | ISL | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Vignisson, Ingvar Egill | | | 1647 | ISL | 1.00 | 1 | 0.10 | 20 | 2.00 | | | * 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) | | | | Icelandic Team Chess Championship 2018-19 1st division Round 1-5 | Reykjavik | ISL | 2018-11-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2089 | 1963 | 1.00 | 2 | 0.24 | 20 | 4.80 | |
| | Jensson, Einar Hjalti | m | | 2343 | ISL | 0.00 | 1 | -0.09 | 20 | -1.80 | | | Jonsson, Pall G | | | 1834 | ISL | 1.00 | 1 | 0.33 | 20 | 6.60 | |
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) | | | | Icelandic Team Chess Championship 2018-19 3rd division Round 1-4 | Reykjavik | ISL | 2018-11-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2000 | 1963 | 1.50 | 2 | 0.59 | 20 | 11.80 | |
| | Fridjonsson, Julius | | | 2156 | ISL | 0.50 | 1 | 0.25 | 20 | 5.00 | | | Arnljotsson, Jon | | | 1843 | ISL | 1.00 | 1 | 0.34 | 20 | 6.80 | |
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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