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Individual Calculations December 2021 |
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| Pettersson, Jonatan Total change: 20.40 | |   |
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| Hasselbacken Chess Open 2021 Lang | Stockholm | SWE | 2021-11-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1723 | 1802 | 1.50 | 4 | -0.79 | 40 | -31.60 | |
|  Tornberg, Carlos | | | 1959 | SWE | 0.00 | 1 | -0.29 | 40 | -11.60 | | | Platkovs, Daniils | | | 1524 | SWE | 1.00 | 1 | 0.17 | 40 | 6.80 | |  Soppela, Toni | | | 1975 | SWE | 0.00 | 1 | -0.27 | 40 | -10.80 | | | Heidarsson, Mikael Bjarki | | | 1434 | ISL | 0.50 | 1 | -0.40 | 40 | -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) | | | | Uppsala Mote 2021lang | Uppsala | SWE | 2021-11-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1910 | 1802 | 2.00 | 2 | 1.30 | 40 | 52.00 | |
| | Kruuse, Peter | | | 1901 | SWE | 1.00 | 1 | 0.64 | 40 | 25.60 | | | Berglund, Nils Erik | | | 1919 | SWE | 1.00 | 1 | 0.66 | 40 | 26.40 | |
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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