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Individual Calculations April 2013 |
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| Costin, Petrica Total change: -1.80 | |   |
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| Ariston open - 2013 | Satu Mare | ROU | 2013-02-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2019 | 2257 | 0.50 | 2 | -1.08 | 15 | -16.20 | |
|  Veklinec, Andrei | | | 1947 | ROU | 0.50 | 1 | -0.36 | 15 | -5.40 | |  Farcas, Doru-Marius | | | 2090 | ROU | 0.00 | 1 | -0.72 | 15 | -10.80 | |
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) | | | | "Vointa - Informatia Zilei" Cup 2013 - 11th edition | Satu Mare | ROU | 2013-03-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2100 | 2230 | 5.50 | 7 | 0.96 | 15 | 14.40 | |
| | Cioltea, Andrei | | | 1830 * | ROU | 1.00 | 1 | 0.08 | 15 | 1.20 | | | Marchis, Arghil | | | 1975 | HUN | 1.00 | 1 | 0.19 | 15 | 2.85 | | | Szabo, Attila | f | | 2294 | ROU | 0.00 | 1 | -0.41 | 15 | -6.15 | | | Marinescu, Mircea | | | 2157 | ROU | 1.00 | 1 | 0.40 | 15 | 6.00 | | | Muntean, Ciprian-Sorin | f | | 2185 | ROU | 1.00 | 1 | 0.44 | 15 | 6.60 | | | Muller, Wilhelm | | | 1981 | ROU | 1.00 | 1 | 0.19 | 15 | 2.85 | | | Bonte, Andrei-Mihai | | | 2280 | ROU | 0.50 | 1 | 0.07 | 15 | 1.05 | | | * 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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