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Individual Calculations April 2009 |
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| Rotstein, Arkadij Total change: 21.20 | |   |
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| Meester - r 4-5 - Dutch Team Competition | Various | NED | 2008-09-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2343 | 2499 | 1.50 | 2 | 0.12 | 10 | 1.20 | |
|  Ootes, Lars | | | 2223 | NED | 0.50 | 1 | -0.33 | 10 | -3.30 | |  Peng, Zhaoqin | g | wg | 2462 | NED | 1.00 | 1 | 0.45 | 10 | 4.50 | |
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) | | | | Torneio Internacional da Figueira da Foz | Figueira da Foz | POR | 2008-11-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2340 | 2495 | 5.50 | 8 | 0.09 | 10 | 0.90 | |
| | Almeida, Alexandre Filipe Maia | | | 2145 | POR | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Leite, Catarina | | wm | 2153 | POR | 1.00 | 1 | 0.12 | 10 | 1.20 | | | Spraggett, Kevin | g | | 2596 | CAN | 0.00 | 1 | -0.36 | 10 | -3.60 | | | Cruz, Jorge Filipe Egas Da | | | 2145 | POR | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Dias, Paulo | f | | 2406 | POR | 1.00 | 1 | 0.38 | 10 | 3.80 | | | Perez Garcia, Rodney | m | | 2436 | CUB | 0.50 | 1 | -0.08 | 10 | -0.80 | | | Kovalyov, Anton | g | | 2571 | ARG | 0.00 | 1 | -0.40 | 10 | -4.00 | | | Chemeris, Roman | f | | 2265 | UKR | 1.00 | 1 | 0.21 | 10 | 2.10 | |
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) | | | | Schaakfestival Groningen - Groep A | Groningen | NED | 2008-12-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2442 | 2495 | 7.00 | 9 | 1.91 | 10 | 19.10 | |
| | Holm, Sejer | | | 2228 | DEN | 1.00 | 1 | 0.18 | 10 | 1.80 | | | Schiffer, Kai-Uwe | f | | 2334 | GER | 1.00 | 1 | 0.29 | 10 | 2.90 | | | Hoeksema, Erik | m | | 2323 | NED | 1.00 | 1 | 0.27 | 10 | 2.70 | | | Sundararajan, Kidambi | m | | 2501 | IND | 1.00 | 1 | 0.51 | 10 | 5.10 | | | Van Den Doel, Erik | g | | 2570 | NED | 0.50 | 1 | 0.10 | 10 | 1.00 | | | Hoffmann, Michael | m | | 2469 | GER | 0.50 | 1 | -0.04 | 10 | -0.40 | | | Danielian, Elina | m | wg | 2513 | ARM | 1.00 | 1 | 0.53 | 10 | 5.30 | | | Gagunashvili, Merab | g | | 2576 | GEO | 0.50 | 1 | 0.11 | 10 | 1.10 | | | Giri, Anish | f | | 2466 | RUS | 0.50 | 1 | -0.04 | 10 | -0.40 | |
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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