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Individual Calculations April 2009 |
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| Ivanov, Borislav Total change: 29.10 | |   |
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| 1-st Memorial GM Nino Kirov | Sofia | BUL | 2009-01-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2220 | 1973 | 1.50 | 5 | 0.51 | 15 | 7.65 | |
|  Drenchev, Petar | m | | 2323 | BUL | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Ivanov, Stojan Emilov | | | 2221 | BUL | 0.50 | 1 | 0.31 | 15 | 4.65 | |  Nenov, Radoslav | | | 2120 | BUL | 0.50 | 1 | 0.20 | 15 | 3.00 | | | Todorov, Momchil | | | 2237 | BUL | 0.50 | 1 | 0.32 | 15 | 4.80 | | | Vlashki, Nino | | | 2200 | BUL | 0.00 | 1 | -0.21 | 15 | -3.15 | |
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) | | | | 73rd Bulgarian Men Championship Semi-final | Plovdiv | BUL | 2009-01-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2140 | 1973 | 3.50 | 8 | 1.11 | 15 | 16.65 | |
| | Panbukchian, Valentin | m | | 2313 | BUL | 0.00 | 1 | -0.12 | 15 | -1.80 | | | Kukov, Velislav | f | | 2323 | BUL | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Stankovski, Marin | | | 1746 | BUL | 1.00 | 1 | 0.21 | 15 | 3.15 | | | Arnaudov, Petar | | | 2194 | BUL | 0.00 | 1 | -0.22 | 15 | -3.30 | | | Panajotov, Janko | | | 2199 | BUL | 0.00 | 1 | -0.21 | 15 | -3.15 | | | Andreev, Sasho | | | 2063 | BUL | 1.00 | 1 | 0.62 | 15 | 9.30 | | | Nikolov, Jordan | | | 2130 | BUL | 1.00 | 1 | 0.71 | 15 | 10.65 | | | Asparuhov, Parvan | | | 2152 | BUL | 0.50 | 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) | | | | 31st Bulgarian Open Chmpionship - Georgi Tringov Memorial 01.02.2009-07.02.2009 | Plovdiv | BUL | 2009-02-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2251 | 1973 | 1.00 | 4 | 0.32 | 15 | 4.80 | |
| | Nadj Hedjesi, Balind | | | 2323 | SRB | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Arnaudov, Petar | | | 2194 | BUL | 0.00 | 1 | -0.22 | 15 | -3.30 | | | Pavlidis, Antonios | | | 2277 | GRE | 0.00 | 1 | -0.14 | 15 | -2.10 | | | Janchev, Petar | | | 2208 | BUL | 1.00 | 1 | 0.79 | 15 | 11.85 | |
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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