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Individual Calculations December 2021 |
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| Piatrenka, Ivan Total change: -51.20 | |   |
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| M.Chigorin Memorial 2021 | St. Petersburg | RUS | 2021-10-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1700 | 1837 | 4.50 | 9 | -1.28 | 40 | -51.20 | |
|  Khripachenko, Alexander | | | 2237 * | RUS | 0.00 | 1 | -0.08 | 40 | -3.20 | |  Gulaia, Maria | | | 1437 * | RUS | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Sinitsina, Anastassia | | wf | 2115 | EST | 0.00 | 1 | -0.17 | 40 | -6.80 | | | Smirnov, Mark | | | 1449 | KAZ | 0.00 | 1 | -0.91 | 40 | -36.40 | | | Deruchenko, Ivan | | | 1497 | RUS | 0.50 | 1 | -0.38 | 40 | -15.20 | | | Rakhmanov, Georgii | | | 1437 * | RUS | 0.50 | 1 | -0.42 | 40 | -16.80 | | | Dodonov, Ivan | | | 1597 | RUS | 1.00 | 1 | 0.20 | 40 | 8.00 | | | Ismailov, Artem Dm. | | | 1437 * | RUS | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Sultan, Ibrahim | m | | 2098 | UAE | 0.50 | 1 | 0.32 | 40 | 12.80 | | | * 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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