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Individual Calculations September 2017 |
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| Costin, Petrica Total change: -36.80 | |   |
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| Ferroli Open 2017 | Satu Mare | ROU | 2017-08-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1913 | 2071 | 1.00 | 4 | -1.84 | 20 | -36.80 | |
|  Deac, David | | | 1910 | ROU | 0.00 | 1 | -0.71 | 20 | -14.20 | |  Szabo, Ervin | | | 1898 | HUN | 1.00 | 1 | 0.27 | 20 | 5.40 | | | Verbin, Valentina | | | 1898 | MDA | 0.00 | 1 | -0.73 | 20 | -14.60 | | | Muller, Wilhelm | | | 1947 | ROU | 0.00 | 1 | -0.67 | 20 | -13.40 | |
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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