Individual Calculations March 2023 |
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Costin, Petrica Total change: -25.80 | | |
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Petra Chess Weekend - 30th ed. | Satu Mare | ROU | 2023-02-03 |
Rc | Ro | w | n | change | K | K*chg | Game |
1988 | 2017 | 2.50 | 7 | -1.29 | 20 | -25.80 | |
| Szabo, Attila | f | | 2183 | ROU | 0.00 | 1 | -0.28 | 20 | -5.60 | | Nagy-Elek, Tamas | | | 2055 | ROU | 0.00 | 1 | -0.45 | 20 | -9.00 | | Helmer, Janos | | | 1948 | ROU | 1.00 | 1 | 0.40 | 20 | 8.00 | | Olah, Francisc | | | 1903 | ROU | 0.50 | 1 | -0.16 | 20 | -3.20 | | Breitkopf, Ioan-Francisc | | | 1919 | ROU | 0.00 | 1 | -0.63 | 20 | -12.60 | | Ambru, Dan-Calin | | | 1978 | ROU | 1.00 | 1 | 0.45 | 20 | 9.00 | | Miron, Ionel | | | 1928 | ROU | 0.00 | 1 | -0.62 | 20 | -12.40 | | 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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