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Individual Calculations September 2009 |
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| Arnaudov, Petar Total change: -42.15 | |   |
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| 3-rd International Open Chess Festival VARNA | St. st. Constantine and Helena | BUL | 2009-06-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2366 | 2200 | 3.00 | 7 | 0.89 | 15 | 13.35 | |
|  Serafimov, Tervel | m | | 2388 | BUL | 1.00 | 1 | 0.74 | 15 | 11.10 | |  Mirzoev, Azer | g | | 2550 | AZE | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Parligras, Mircea | g | | 2550 | ROU | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Bayramov, Elkhan Khayyat Oglu | | | 1944 | AZE | 1.00 | 1 | 0.19 | 15 | 2.85 | | | Schneider, Veronika | | wm | 2320 | HUN | 0.00 | 1 | -0.34 | 15 | -5.10 | | | Dimitrov, Pavel | m | | 2396 | BUL | 1.00 | 1 | 0.75 | 15 | 11.25 | | | Lilov, Valeri | f | | 2411 | BUL | 0.00 | 1 | -0.23 | 15 | -3.45 | |
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) | | | | Albena International Open Chess Tournament 2009 | Albena | BUL | 2009-06-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2102 | 2200 | 3.00 | 6 | -0.68 | 15 | -10.20 | |
| | Georgiev, Vladimir | g | | 2539 | MKD | 0.00 | 1 | -0.12 | 15 | -1.80 | | | Iliev, Atanas | | | 1969 | BUL | 0.00 | 1 | -0.79 | 15 | -11.85 | | | Papazov, Sotir | | | 1945 | BUL | 1.00 | 1 | 0.19 | 15 | 2.85 | | | Dereshki, Dario | | | 1850 | BUL | 1.00 | 1 | 0.11 | 15 | 1.65 | | | Arnaudov, G. Petar | m | | 2449 | BUL | 0.00 | 1 | -0.19 | 15 | -2.85 | | | Velikov, Vladimir | | | 1857 | BUL | 1.00 | 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) | | | | Memorial Kamen Piskov | Sofia | BUL | 2009-08-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2238 | 2263 | 4.00 | 9 | -0.79 | 15 | -11.85 | |
| | Janakiev, Ivan | m | | 2232 | BUL | 0.00 | 1 | -0.54 | 15 | -8.10 | | | Cholakov, Stefan | | | 2167 | BUL | 0.00 | 1 | -0.63 | 15 | -9.45 | | | Popov, Georgi | | | 2196 | BUL | 0.00 | 1 | -0.59 | 15 | -8.85 | | | Spassov, Liuben | g | | 2427 | BUL | 0.00 | 1 | -0.28 | 15 | -4.20 | | | Orev, Petar | m | | 2235 | BUL | 1.00 | 1 | 0.46 | 15 | 6.90 | | | Mitrev, Kiril | | | 2103 | BUL | 1.00 | 1 | 0.29 | 15 | 4.35 | | | Radulov, Ivan | g | | 2303 | BUL | 0.50 | 1 | 0.06 | 15 | 0.90 | | | Ljangov, Petar | | | 2124 | BUL | 1.00 | 1 | 0.31 | 15 | 4.65 | | | Spiridonov, Nikola | g | | 2359 | BUL | 0.50 | 1 | 0.13 | 15 | 1.95 | |
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) | | | | 24th open TETEVEN | Teteven | BUL | 2009-08-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2005 | 2263 | 5.00 | 9 | -2.23 | 15 | -33.45 | |
| | Georgiev, Emil | | | 1863 * | BUL | 1.00 | 1 | 0.08 | 15 | 1.20 | | | Sirkova, Darena | | | 2012 | BUL | 0.00 | 1 | -0.81 | 15 | -12.15 | | | Bizov, Stojan | | | 1863 * | BUL | 1.00 | 1 | 0.08 | 15 | 1.20 | | | Kostov, Nikolay | | | 1967 | BUL | 1.00 | 1 | 0.15 | 15 | 2.25 | | | Daskalov, Dimitar | | | 1936 | BUL | 0.50 | 1 | -0.37 | 15 | -5.55 | | | Petkov, Hristo | | | 2086 | BUL | 0.50 | 1 | -0.23 | 15 | -3.45 | | | Bochev, Krasimir | | | 2113 | BUL | 0.50 | 1 | -0.20 | 15 | -3.00 | | | Ribarov, Plamen | | | 2109 | BUL | 0.50 | 1 | -0.21 | 15 | -3.15 | | | Ivanov, Tsvetalin | | | 2097 | BUL | 0.00 | 1 | -0.72 | 15 | -10.80 | | | * 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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