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Individual Calculations April 2019 |
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| Ingvason, Johann Total change: -26.20 | |   |
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| Skakmot odlinga 2019 | Reykjavik | ISL | 2019-02-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1937 | 2175 | 5.00 | 7 | -0.46 | 20 | -9.20 | |
|  Maggason, Oskar | | | 1811 | ISL | 1.00 | 1 | 0.10 | 20 | 2.00 | |  Halldorsson, Kristjan | | | 1854 | ISL | 1.00 | 1 | 0.13 | 20 | 2.60 | | | Bjarnason, Olafur | | | 1827 | ISL | 1.00 | 1 | 0.11 | 20 | 2.20 | | | Olafsson, Thorvardur | | | 2199 | ISL | 0.50 | 1 | 0.03 | 20 | 0.60 | | | Baldursson, Haraldur | | | 1944 | ISL | 0.00 | 1 | -0.79 | 20 | -15.80 | | | Sigurdsson, Snorri Thor | | | 1958 | ISL | 1.00 | 1 | 0.22 | 20 | 4.40 | | | Haraldsson, Haraldur | | | 1969 | ISL | 0.50 | 1 | -0.26 | 20 | -5.20 | |
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 Rounds 6-9 | Reykjavik | ISL | 2019-02-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2137 | 2175 | 1.00 | 3 | -0.62 | 20 | -12.40 | |
| | Davidsson, Oskar Vikingur | | | 1941 | ISL | 1.00 | 1 | 0.21 | 20 | 4.20 | | | Johannesson, Oliver | f | | 2283 | ISL | 0.00 | 1 | -0.35 | 20 | -7.00 | | | Ptacnikova, Lenka | | wg | 2187 | ISL | 0.00 | 1 | -0.48 | 20 | -9.60 | |
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 2nd division Rounds 5-7 | Reykjavik | ISL | 2019-03-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2415 | 2207 | 0.00 | 1 | -0.23 | 20 | -4.60 | |
| | Norowitz, Yaacov | m | | 2415 | USA | 0.00 | 1 | -0.23 | 20 | -4.60 | |
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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