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Individual Calculations January 2018 |
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| Costin, Petrica Total change: -34.00 | |   |
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| Petra Weekend no.12 | Satu Mare | ROU | 2017-12-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1938 | 2093 | 2.50 | 6 | -1.70 | 20 | -34.00 | |
|  Muller, Wilhelm | | | 1883 | ROU | 0.50 | 1 | -0.27 | 20 | -5.40 | |  Ambru, Dan-Calin | | | 2037 | ROU | 0.00 | 1 | -0.58 | 20 | -11.60 | | | Bonte, Arghir | | | 1947 | ROU | 0.00 | 1 | -0.70 | 20 | -14.00 | | | Marchis, Arghil | | | 1922 | HUN | 1.00 | 1 | 0.27 | 20 | 5.40 | | | Remetean, Vasile | | | 1796 | ROU | 1.00 | 1 | 0.15 | 20 | 3.00 | | | Miron, Ionel | | | 2040 | ROU | 0.00 | 1 | -0.57 | 20 | -11.40 | |
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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