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Individual Calculations July 2011 |
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| Costiuc, Ioan Total change: -22.20 | |   |
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| "MOTAN-KOBER" International Chess Tournament | Satu Mare | ROU | 2011-04-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2033 | 1864 | 2.50 | 6 | 0.72 | 15 | 10.80 | |
|  Florescu, Codrut-Constantin | m | | 2242 | ROU | 0.00 | 1 | -0.09 | 15 | -1.35 | | | Costin, Petrica | f | | 2156 | ROU | 1.00 | 1 | 0.85 | 15 | 12.75 | |  Muller, Wilhelm | | | 2012 | ROU | 0.00 | 1 | -0.30 | 15 | -4.50 | | | Bonte, Arghir | | | 1999 | ROU | 0.50 | 1 | 0.18 | 15 | 2.70 | | | Catricicau, Claudiu | | | 1878 | ROU | 0.00 | 1 | -0.48 | 15 | -7.20 | | | Sandru, Nicolae | | | 1908 | ROU | 1.00 | 1 | 0.56 | 15 | 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) | | | | Felix Cup 2011 XXVI. Edition | Baile Felix | ROU | 2011-05-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1809 | 1873 | 1.50 | 5 | -1.33 | 15 | -19.95 | |
| | Costin, Petrica | f | | 2117 | ROU | 0.00 | 1 | -0.20 | 15 | -3.00 | | | Uta, Adeline-Ramona | | wf | 2099 | ROU | 0.00 | 1 | -0.21 | 15 | -3.15 | | | Csurka, Roland | | | 1655 | ROU | 0.50 | 1 | -0.28 | 15 | -4.20 | | | Dragnea, Darius-Mihai | | | 1473 * | ROU | 0.50 | 1 | -0.42 | 15 | -6.30 | | | Tyukodi, Petra | | | 1703 | ROU | 0.50 | 1 | -0.22 | 15 | -3.30 | | | * 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) | | | | Partyum Cup 2011 | Marghita | ROU | 2011-06-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1830 | 1873 | 2.50 | 6 | -0.87 | 15 | -13.05 | |
| | Veres, Ioan | | | 1863 | ROU | 0.00 | 1 | -0.51 | 15 | -7.65 | | | Jakab, Kincso | | | 1570 | ROU | 0.50 | 1 | -0.36 | 15 | -5.40 | | | Jakab, Benjamin | | | 1722 | ROU | 1.00 | 1 | 0.30 | 15 | 4.50 | | | Jakab, Zsolt | | | 1711 | ROU | 0.50 | 1 | -0.21 | 15 | -3.15 | | | Secheres, Adrian-Simion | | | 1898 | ROU | 0.50 | 1 | 0.03 | 15 | 0.45 | | | Muntean, Ciprian-Sorin | f | | 2214 | ROU | 0.00 | 1 | -0.12 | 15 | -1.80 | |
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) | | |
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