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Individual Calculations December 2017 |
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| Petrova, Irina Total change: 10.80 | |   |
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| M.Chigorin Memorial 2017 | St. Petersburg | RUS | 2017-10-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2211 | 2174 | 4.50 | 9 | 0.54 | 20 | 10.80 | |
|  Serov, Aleksandr | | | 1774 * | RUS | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Gubajdullin, Alexei | f | | 2391 | RUS | 0.00 | 1 | -0.22 | 20 | -4.40 | | | Aga, Rihard | | | 1842 | EST | 1.00 | 1 | 0.12 | 20 | 2.40 | | | Litvinov, Maxim | | | 2373 | RUS | 0.00 | 1 | -0.24 | 20 | -4.80 | | | Gordon, Evgeny | | | 1990 | ISR | 1.00 | 1 | 0.26 | 20 | 5.20 | | | Naboka, Sergey | f | | 2351 | UKR | 0.50 | 1 | 0.23 | 20 | 4.60 | | | Biriukov, Oleg V. | m | | 2336 | RUS | 1.00 | 1 | 0.71 | 20 | 14.20 | | | Golubov, Saveliy | m | | 2501 | RUS | 0.00 | 1 | -0.13 | 20 | -2.60 | | | Chen, Qi B | | | 2345 | CHN | 0.00 | 1 | -0.27 | 20 | -5.40 | | | * 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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