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Individual Calculations April 2009 |
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| Petkov, Vladimir Total change: -22.70 | |   |
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| Torneio Internacional da Figueira da Foz | Figueira da Foz | POR | 2008-11-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2312 | 2484 | 6.50 | 9 | 0.24 | 10 | 2.40 | |
|  Martinho, Filipe Mesquita Alves | | | 2134 | POR | 1.00 | 1 | 0.11 | 10 | 1.10 | |  Fanha, Paulo | | | 2134 | POR | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Chemeris, Roman | f | | 2265 | UKR | 1.00 | 1 | 0.22 | 10 | 2.20 | | | Kovalyov, Anton | g | | 2571 | ARG | 0.50 | 1 | 0.12 | 10 | 1.20 | | | Spraggett, Kevin | g | | 2596 | CAN | 0.00 | 1 | -0.35 | 10 | -3.50 | | | Leite, Catarina | | wm | 2153 | POR | 1.00 | 1 | 0.12 | 10 | 1.20 | | | Ribeiro, Fernando | f | | 2266 | POR | 1.00 | 1 | 0.22 | 10 | 2.20 | | | Paunovic, Dragan | g | | 2532 | SRB | 0.00 | 1 | -0.43 | 10 | -4.30 | | | Ferreira, Jorge Viterbo | | | 2153 | POR | 1.00 | 1 | 0.12 | 10 | 1.20 | |
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) | | | | 1-st Memorial GM Nino Kirov | Sofia | BUL | 2009-01-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2381 | 2504 | 5.50 | 8 | 0.26 | 10 | 2.60 | |
| | Kolev, Vasil | | | 2154 | BUL | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Nikolova, Adriana | | wm | 2310 | BUL | 1.00 | 1 | 0.25 | 10 | 2.50 | | | Dobrev, Nanko | m | | 2409 | BUL | 1.00 | 1 | 0.37 | 10 | 3.70 | | | Spassov, Liuben | g | | 2417 | BUL | 0.50 | 1 | -0.12 | 10 | -1.20 | | | Kozhuharov, Spas | m | | 2411 | BUL | 0.50 | 1 | -0.13 | 10 | -1.30 | | | Nikolov, Sasho | m | | 2398 | BUL | 1.00 | 1 | 0.36 | 10 | 3.60 | | | Petrov, Marijan | m | | 2477 | BUL | 0.50 | 1 | -0.04 | 10 | -0.40 | | | Grigorov, Grigor | m | | 2475 | BUL | 0.00 | 1 | -0.54 | 10 | -5.40 | |
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) | | | | 73nd Bulgarian Individual Men Chess Championship 2009 | Blagoevgrad | BUL | 2009-02-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2431 | 2504 | 5.00 | 13 | -2.77 | 10 | -27.70 | |
| | Arnaudov, G. Petar | f | | 2347 | BUL | 1.00 | 1 | 0.29 | 10 | 2.90 | | | Bojkov, Dejan | g | | 2477 | BUL | 0.00 | 1 | -0.54 | 10 | -5.40 | | | Nikolov, Momchil | m | | 2478 | BUL | 1.00 | 1 | 0.46 | 10 | 4.60 | | | Kukov, Velislav | f | | 2373 | BUL | 0.00 | 1 | -0.68 | 10 | -6.80 | | | Radulski, Julian | g | | 2580 | BUL | 0.00 | 1 | -0.40 | 10 | -4.00 | | | Pantev, Veselin | f | | 2381 | BUL | 0.00 | 1 | -0.67 | 10 | -6.70 | | | Berbatov, Kiprian | f | | 2392 | BUL | 0.00 | 1 | -0.65 | 10 | -6.50 | | | Lilov, Valeri | f | | 2443 | BUL | 0.50 | 1 | -0.08 | 10 | -0.80 | | | Filev, Georgi | f | | 2378 | BUL | 1.00 | 1 | 0.33 | 10 | 3.30 | | | Rusev, Krasimir | g | | 2546 | BUL | 0.50 | 1 | 0.06 | 10 | 0.60 | | | Enchev, Ivajlo | | | 2382 | BUL | 0.50 | 1 | -0.17 | 10 | -1.70 | | | Chatalbashev, Boris | g | | 2560 | BUL | 0.00 | 1 | -0.42 | 10 | -4.20 | | | Vutov, M. Mario | | | 2262 | BUL | 0.50 | 1 | -0.30 | 10 | -3.00 | |
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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