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Individual Calculations September 2023 |
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| Petkova, Irina Total change: 118.80 | |   |
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| Open Teteven 2023 | Teteven | BUL | 2023-08-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1927 | 1649 | 2.00 | 5 | 0.84 | 40 | 33.60 | |
|  Ignatov, Georgi | | | 2059 | BUL | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Tashkov, Rumen | | | 2108 | BUL | 0.00 | 1 | -0.05 | 40 | -2.00 | |  Velchev, Yoan | | | 1249 * | BUL | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Janakiev, Ivan | m | | 2067 | BUL | 1.00 | 1 | 0.93 | 40 | 37.20 | | | Stoinev, Metodi | | | 2152 | BUL | 0.00 | 1 | -0.04 | 40 | -1.60 | | | * 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) | | | | 45th International Open - Memorial Georgi Tringov | Plovdiv | BUL | 2023-08-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1926 | 1649 | 4.00 | 8 | 2.13 | 40 | 85.20 | |
| | Stojanov, Alexandar | | | 2072 | BUL | 0.50 | 1 | 0.43 | 40 | 17.20 | | | Huhndorf, Arnold | f | | 2107 | GER | 0.50 | 1 | 0.45 | 40 | 18.00 | | | Pavlov, Vladimir | | | 2095 | BUL | 1.00 | 1 | 0.94 | 40 | 37.60 | | | Badev, Kiril | f | | 2087 | BUL | 0.00 | 1 | -0.06 | 40 | -2.40 | | | Javadov, Habil | | | 1980 | AZE | 0.00 | 1 | -0.12 | 40 | -4.80 | | | Mplitsa, Artemis | | | 1406 | GRE | 1.00 | 1 | 0.20 | 40 | 8.00 | | | Uzunov, Stefan | | | 1525 | BUL | 0.50 | 1 | -0.17 | 40 | -6.80 | | | Dolmadjan, Arshak | | | 2137 | BUL | 0.50 | 1 | 0.46 | 40 | 18.40 | |
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) | | |
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