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Individual Calculations April 2019 |
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| Vigfusson, Vigfus Total change: 4.40 | |   |
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| Icelandic Team Chess Championship 2018-19 1st division Rounds 6-9 | Reykjavik | ISL | 2019-02-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2108 | 1982 | 1.00 | 2 | 0.33 | 20 | 6.60 | |
|  Ornolfsson, Magnus P. | | | 2201 | ISL | 0.50 | 1 | 0.28 | 20 | 5.60 | |  Mai, Aron Thor | | | 2015 | ISL | 0.50 | 1 | 0.05 | 20 | 1.00 | |
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 3rd division Rounds 5-7 | Reykjavik | ISL | 2019-03-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1943 | 1982 | 1.00 | 2 | -0.11 | 20 | -2.20 | |
| | Johannsson, Birkir Isak | | | 1957 | ISL | 0.00 | 1 | -0.53 | 20 | -10.60 | | | Baldursson, Haraldur | | | 1928 | ISL | 1.00 | 1 | 0.42 | 20 | 8.40 | |
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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