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Individual Calculations April 2008 |
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| Petkov, Vladimir Total change: -19.00 | |   |
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| SVDB IM Normenturnier | Eupen | BEL | 2007-12-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2361 | 2508 | 3.50 | 9 | -2.71 | 10 | -27.10 | |
|  Litwak, Aleksej | f | | 2298 | GER | 0.50 | 1 | -0.27 | 10 | -2.70 | |  Berelovich, Aleksandar | g | | 2595 | UKR | 0.50 | 1 | 0.12 | 10 | 1.20 | | | Ahn, Martin | f | | 2309 | BEL | 0.50 | 1 | -0.26 | 10 | -2.60 | | | Meessen, Rudolf | f | | 2303 | BEL | 1.00 | 1 | 0.24 | 10 | 2.40 | | | Philipowski, Robert | f | | 2299 | GER | 0.00 | 1 | -0.77 | 10 | -7.70 | | | Gulbas, Cemil | f | | 2365 | BEL | 0.00 | 1 | -0.69 | 10 | -6.90 | | | Braun, Christian | | | 2296 | GER | 0.00 | 1 | -0.77 | 10 | -7.70 | | | Hautot, Stephane | f | | 2333 | BEL | 0.50 | 1 | -0.23 | 10 | -2.30 | | | Roeder, Mathias | m | | 2452 | GER | 0.50 | 1 | -0.08 | 10 | -0.80 | |
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) | | | | N1 - R4-5 | Various | FRA | 2007-12-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2403 | 2508 | 1.00 | 2 | -0.28 | 10 | -2.80 | |
| | Murey, Jacob | g | | 2410 | ISR | 0.00 | 1 | -0.63 | 10 | -6.30 | | | David, Vincent | f | | 2396 | FRA | 1.00 | 1 | 0.35 | 10 | 3.50 | |
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) | | | | 30th Bulgarian open Championship | Plovdiv | BUL | 2008-02-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2311 | 2434 | 6.50 | 9 | 0.63 | 10 | 6.30 | |
| | Valev, Valentin | | | 2084 | BUL | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Vlashki, Nino | | | 2175 | BUL | 1.00 | 1 | 0.18 | 10 | 1.80 | | | Mladenov, Plamen | | | 2288 | BUL | 1.00 | 1 | 0.30 | 10 | 3.00 | | | Bojkov, Dejan | m | | 2523 | BUL | 1.00 | 1 | 0.62 | 10 | 6.20 | | | Georgiev, Krum | g | | 2466 | BUL | 0.50 | 1 | 0.04 | 10 | 0.40 | | | Iotov, Valentin | m | | 2495 | BUL | 0.00 | 1 | -0.42 | 10 | -4.20 | | | Djokic, Vladan | f | | 2268 | SRB | 0.00 | 1 | -0.72 | 10 | -7.20 | | | Angelov, Kosta | m | | 2219 | BUL | 1.00 | 1 | 0.23 | 10 | 2.30 | | | Dimitrov, Atanas | | | 2279 | GRE | 1.00 | 1 | 0.29 | 10 | 2.90 | |
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) | | | | N1 - R6-7 | Various | FRA | 2008-02-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2519 | 2434 | 0.50 | 2 | -0.27 | 10 | -2.70 | |
| | Komarov, Dimitri | g | | 2532 | UKR | 0.00 | 1 | -0.37 | 10 | -3.70 | | | Moradiabadi, Elshan | g | | 2506 | IRI | 0.50 | 1 | 0.10 | 10 | 1.00 | |
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) | | | | Bulgarian Chess Championship - Semifinal | Plovdiv | BUL | 2008-02-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2327 | 2434 | 6.50 | 9 | 0.73 | 10 | 7.30 | |
| | Arnaudov, Petar | | | 2166 | BUL | 1.00 | 1 | 0.17 | 10 | 1.70 | | | Velchev, Hristo | f | | 2284 | BUL | 1.00 | 1 | 0.30 | 10 | 3.00 | | | Milchev, Nikolay | f | | 2373 | BUL | 1.00 | 1 | 0.42 | 10 | 4.20 | | | Kozhuharov, Spas | m | | 2456 | BUL | 0.50 | 1 | 0.03 | 10 | 0.30 | | | Filev, Georgi | | | 2353 | BUL | 1.00 | 1 | 0.39 | 10 | 3.90 | | | Tsvetkov, Ilia | | | 2352 | BUL | 0.00 | 1 | -0.61 | 10 | -6.10 | | | Arnaudov, G Petar | f | | 2345 | BUL | 1.00 | 1 | 0.38 | 10 | 3.80 | | | Mladenov, Plamen | | | 2288 | BUL | 0.50 | 1 | -0.20 | 10 | -2.00 | | | Lilov, Valeri | f | | 2323 | BUL | 0.50 | 1 | -0.15 | 10 | -1.50 | |
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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