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Individual Calculations November 2023 |
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| Kovachev, Ivan Total change: 12.40 | |   |
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| 23rd Chess Weekend | Sofia | BUL | 2023-09-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1612 | 1611 | 3.50 | 6 | 0.45 | 20 | 9.00 | |
|  Stefanov, Georgi S | | | 1211 * | BUL | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Dyulgerov, Dimitar | | | 2054 | BUL | 0.00 | 1 | -0.06 | 20 | -1.20 | | | Stoyanov, Ivan | | | 1384 | BUL | 1.00 | 1 | 0.21 | 20 | 4.20 | | | Krastev, Kalin | | | 1880 | BUL | 0.50 | 1 | 0.33 | 20 | 6.60 | | | Ignatov, Bojidar | | | 1641 | BUL | 0.50 | 1 | 0.04 | 20 | 0.80 | | | Ivanov, Stefan V | | | 1499 | BUL | 0.50 | 1 | -0.15 | 20 | -3.00 | | | * 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) | | | | 24th Chess Weekend | Sofia | BUL | 2023-10-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1698 | 1611 | 2.00 | 4 | 0.17 | 20 | 3.40 | |
| | Nikolov, Sasho | m | | 2238 | BUL | 0.00 | 1 | -0.01 | 20 | -0.20 | | | Velichkov, Nikolay | | | 1272 | BUL | 1.00 | 1 | 0.12 | 20 | 2.40 | | | Atanasov, Kristiyan | | | 1418 | BUL | 0.50 | 1 | -0.25 | 20 | -5.00 | | | Dankov, Boris | | | 1862 | BUL | 0.50 | 1 | 0.31 | 20 | 6.20 | |
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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