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Individual Calculations April 2018 |
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| Costin, Petrica Total change: 11.60 | |   |
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| Petra Weekend no.15 | Satu Mare | ROU | 2018-03-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2150 | 2084 | 3.50 | 7 | 0.58 | 20 | 11.60 | |
|  Ardeleanu, Alin | m | | 2332 | ROU | 0.50 | 1 | 0.31 | 20 | 6.20 | |  Suciu, Dinu-Simi | f | | 2129 | ROU | 0.50 | 1 | 0.06 | 20 | 1.20 | | | Nester, Ihor | m | | 2311 | UKR | 0.50 | 1 | 0.29 | 20 | 5.80 | | | Chereches, Marius-Cristian | f | | 2165 | HUN | 1.00 | 1 | 0.61 | 20 | 12.20 | | | Ilonczai, Levente-David | | | 2001 | ROU | 0.00 | 1 | -0.61 | 20 | -12.20 | | | Anghelus, Alin-Gabriel | | | 2083 | ROU | 0.00 | 1 | -0.50 | 20 | -10.00 | | | Helmer, Janos | | | 2028 | ROU | 1.00 | 1 | 0.42 | 20 | 8.40 | |
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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