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Individual Calculations December 2019 |
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| Pettersson, Alexander Total change: -47.80 | |   |
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| Hasselbacken Chess Open 2019 Lang | Stockholm | SWE | 2019-11-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2001 | 2064 | 1.50 | 4 | -0.84 | 20 | -16.80 | |
|  Grahn, Vidar | | | 1902 | SWE | 1.00 | 1 | 0.29 | 20 | 5.80 | | | Henriksson, Johan | f | | 2265 | SWE | 0.00 | 1 | -0.24 | 20 | -4.80 | |  Krivenko, Dion | | | 1914 | EST | 0.50 | 1 | -0.20 | 20 | -4.00 | | | Myrene, Jon Kare | | | 1924 | NOR | 0.00 | 1 | -0.69 | 20 | -13.80 | |
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) | | | | Malta International Open 2019 | Bugibba | MLT | 2019-11-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1914 | 2064 | 4.00 | 8 | -1.55 | 20 | -31.00 | |
| | Herrero Corada, Jose Ignacio | | | 1805 | ESP | 1.00 | 1 | 0.18 | 20 | 3.60 | | | Friedland, Moshe | f | | 2274 | ISR | 0.00 | 1 | -0.23 | 20 | -4.60 | | | Puroila, Sippo | | | 1875 | FIN | 0.50 | 1 | -0.25 | 20 | -5.00 | | | Krejcar, Walter | | | 1884 | AUT | 0.00 | 1 | -0.74 | 20 | -14.80 | | | Fischer, Gerd | | | 1826 | GER | 1.00 | 1 | 0.20 | 20 | 4.00 | | | Peglau, Miriam | | | 1885 | GER | 0.50 | 1 | -0.23 | 20 | -4.60 | | | Sherman, Reem | | | 1924 | ISR | 0.00 | 1 | -0.69 | 20 | -13.80 | | | Sheard, Martin | | | 1837 | ENG | 1.00 | 1 | 0.21 | 20 | 4.20 | |
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) | | |
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