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Individual Calculations March 2020 |
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| Jonatansson, Sigurdur Freyr Total change: -59.20 | |   |
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| Skakthing Reykjavikur 2020 | Reykjavik | ISL | 2020-01-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1552 | 1651 | 3.00 | 7 | -1.29 | 20 | -25.80 | |
|  Mai, Aron Thor | | | 2051 * | ISL | 0.00 | 1 | -0.08 | 20 | -1.60 | |  Heidarsson, Mikael Bjarki | | | 1251 * | ISL | 0.50 | 1 | -0.42 | 20 | -8.40 | | | Brynjarsson, Einar Dagur | | | 1251 * | ISL | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Petursson, Gudni | | | 2026 | ISL | 0.00 | 1 | -0.09 | 20 | -1.80 | | | Skarphedinsson, Ingvar Wu | | | 1484 | ISL | 0.00 | 1 | -0.72 | 20 | -14.40 | | | Jonsson, Thorsteinn Emil | | | 1251 * | ISL | 0.50 | 1 | -0.42 | 20 | -8.40 | | | Jonasson, Hordur | | | 1551 | ISL | 1.00 | 1 | 0.36 | 20 | 7.20 | | | * 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) | | | | Skakhatid MotX 2020 - b-flokkur | Kopavogur | ISL | 2020-01-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1506 | 1651 | 1.50 | 5 | -1.67 | 20 | -33.40 | |
| | Sigurdsson, Birkir Karl | | | 1942 | ISL | 0.00 | 1 | -0.15 | 20 | -3.00 | | | Helgadottir, Idunn | | | 1251 * | ISL | 0.00 | 1 | -0.92 | 20 | -18.40 | | | Kjartansson, Matthias Bjorgvin | | | 1251 * | ISL | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Hauksdottir, Hrund | | | 1835 | ISL | 0.00 | 1 | -0.26 | 20 | -5.20 | | | Omarsson, Adam | | | 1251 * | ISL | 0.50 | 1 | -0.42 | 20 | -8.40 | | | * 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) | | |
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