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Individual Calculations April 2019 |
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| Ptacnikova, Lenka Total change: 10.60 | |   |
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| Skakmot odlinga 2019 | Reykjavik | ISL | 2019-02-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1919 | 2187 | 3.00 | 5 | -1.00 | 20 | -20.00 | |
|  Ingvarsson, Kjartan | | | 1812 | ISL | 0.50 | 1 | -0.41 | 20 | -8.20 | |  Maggason, Oskar | | | 1811 | ISL | 1.00 | 1 | 0.09 | 20 | 1.80 | | | Bjarnason, Olafur | | | 1827 | ISL | 1.00 | 1 | 0.10 | 20 | 2.00 | | | Olafsson, Thorvardur | | | 2199 | ISL | 0.50 | 1 | 0.02 | 20 | 0.40 | | | Baldursson, Haraldur | | | 1944 | ISL | 0.00 | 1 | -0.80 | 20 | -16.00 | |
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 1st division Rounds 6-9 | Reykjavik | ISL | 2019-02-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2296 | 2187 | 3.00 | 4 | 1.53 | 20 | 30.60 | |
| | Bergthorsson, Jon Thor | | | 2153 | ISL | 0.50 | 1 | -0.05 | 20 | -1.00 | | | Gunnarsson, Jon Viktor | m | | 2462 | ISL | 0.50 | 1 | 0.33 | 20 | 6.60 | | | Heimisson, Hilmir Freyr | f | | 2394 | ISL | 1.00 | 1 | 0.77 | 20 | 15.40 | | | Ingvason, Johann | | | 2175 | ISL | 1.00 | 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) | | |
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