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Individual Calculations September 2009 |
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| Rosca, Grigore Total change: -23.25 | |   |
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| International Chess Festival Eforie Nord | Eforie Nord | ROU | 2009-06-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1988 | 1742 | 0.00 | 5 | -1.02 | 15 | -15.30 | |
|  Hajbok, Robert | | | 2092 | ROU | 0.00 | 1 | -0.11 | 15 | -1.65 | |  Angheluta, Ovidiu | | | 2014 | ROU | 0.00 | 1 | -0.17 | 15 | -2.55 | | | Fugulyan, Grigore | | | 2005 | ROU | 0.00 | 1 | -0.18 | 15 | -2.70 | | | Turlea, Constantin | | | 1994 | ROU | 0.00 | 1 | -0.19 | 15 | -2.85 | | | Martian, Dragos-Daniel | | | 1835 | ROU | 0.00 | 1 | -0.37 | 15 | -5.55 | |
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) | | | | Brasov Cup | Brasov | ROU | 2009-08-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1984 | 1738 | 1.00 | 3 | 0.29 | 15 | 4.35 | |
| | Duca, Alexandru-Gabriel | f | | 2138 * | ROU | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Egli, Ioan | | | 1715 | ROU | 1.00 | 1 | 0.47 | 15 | 7.05 | | | Toma, Radu-Cristian | | | 2100 | ROU | 0.00 | 1 | -0.10 | 15 | -1.50 | | | * 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) | | | | XII. Bancpost - A tournament | Miercurea Ciuc | ROU | 2009-08-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1847 | 1738 | 1.00 | 5 | -0.82 | 15 | -12.30 | |
| | Szabo, Zoltan | | | 1988 | HUN | 0.00 | 1 | -0.19 | 15 | -2.85 | | | Palamar, Theodor | | | 1725 | ROU | 0.50 | 1 | -0.02 | 15 | -0.30 | | | Cosmulescu, Alexandru-Paul | | | 1819 | ROU | 0.50 | 1 | 0.11 | 15 | 1.65 | | | Andrei, Gheorghe | | | 1986 | ROU | 0.00 | 1 | -0.19 | 15 | -2.85 | | | Egli, Ioan | | | 1715 | ROU | 0.00 | 1 | -0.53 | 15 | -7.95 | |
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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