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Individual Calculations September 2009 |
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| Costin, Petrica Total change: 15.90 | |   |
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| Satu Mare Chess Weekend no.3 | Satu Mare | ROU | 2009-07-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2217 | 2073 | 2.00 | 5 | 0.39 | 15 | 5.85 | |
|  Suciu, Dinu-Simi | f | | 2095 | ROU | 1.00 | 1 | 0.53 | 15 | 7.95 | |  Marinescu, Mircea | | | 2198 | ROU | 1.00 | 1 | 0.67 | 15 | 10.05 | | | Szabo, Attila | f | | 2294 | ROU | 0.00 | 1 | -0.22 | 15 | -3.30 | | | Butunoi, Alexandru-Victor | m | | 2408 | ROU | 0.00 | 1 | -0.12 | 15 | -1.80 | | | Lupu, Ovidiu-Jean | | | 2092 | ROU | 0.00 | 1 | -0.47 | 15 | -7.05 | |
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) | | | | Nyirsegi Torna Group A 2009 | Nyiregyhaza | HUN | 2009-07-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2260 | 2073 | 1.00 | 3 | 0.08 | 15 | 1.20 | |
| | Sipos, Istvan | f | | 2415 | HUN | 0.00 | 1 | -0.12 | 15 | -1.80 | | | Thuroczy, Balazs | | | 1915 | HUN | 1.00 | 1 | 0.29 | 15 | 4.35 | | | Mester, Gyula | f | | 2450 | HUN | 0.00 | 1 | -0.09 | 15 | -1.35 | |
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) | | | | Cseppko Open 2009 A Group | Aggtelek | HUN | 2009-07-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2061 | 2073 | 2.50 | 7 | -1.02 | 15 | -15.30 | |
| | Borsos, Bogdan | m | | 2289 | UKR | 0.00 | 1 | -0.22 | 15 | -3.30 | | | Kemendi, Daniel | | | 1699 | HUN | 1.00 | 1 | 0.10 | 15 | 1.50 | | | Bemak, Mikhail | | | 2177 | UKR | 0.00 | 1 | -0.36 | 15 | -5.40 | | | Halmi, Bence | | | 2018 | HUN | 0.50 | 1 | -0.08 | 15 | -1.20 | | | Balo, Tamas | | | 2123 | HUN | 0.00 | 1 | -0.43 | 15 | -6.45 | | | Vereb, Andras | | | 1987 | HUN | 1.00 | 1 | 0.38 | 15 | 5.70 | | | Szurovszky, Elek | f | | 2137 | HUN | 0.00 | 1 | -0.41 | 15 | -6.15 | |
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) | | | | Arad Open 2009 | Arad | ROU | 2009-08-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2265 | 2073 | 3.50 | 7 | 1.61 | 15 | 24.15 | |
| | Danilov, Vladimir | m | | 2389 | ROU | 0.00 | 1 | -0.13 | 15 | -1.95 | | | Obsusta, Stefan | | | 1673 * | ROU | 1.00 | 1 | 0.08 | 15 | 1.20 | | | Florescu, Codrut-Constantin | m | | 2261 | ROU | 0.50 | 1 | 0.24 | 15 | 3.60 | | | Torok, Sandor | f | | 2307 | HUN | 1.00 | 1 | 0.79 | 15 | 11.85 | | | Butunoi, Alexandru-Victor | m | | 2408 | ROU | 1.00 | 1 | 0.88 | 15 | 13.20 | | | Jianu, Vlad-Cristian | g | | 2473 * | ROU | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Chereches, Marius | f | | 2343 | HUN | 0.00 | 1 | -0.17 | 15 | -2.55 | | | * 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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