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Individual Calculations September 2015 |
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| Perik, Alois Total change: -48.40 | |   |
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| CZECH OPEN 2015 - C - open rating tournament | Pardubice, Tipsport arena | CZE | 2015-07-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1610 | 1841 | 2.00 | 5 | -1.94 | 20 | -38.80 | |
|  Valenta, Lukas | | | 1597 | CZE | 1.00 | 1 | 0.20 | 20 | 4.00 | |  Tengis, Boldbaatar | | | 1598 | MGL | 0.50 | 1 | -0.30 | 20 | -6.00 | | | Kueck, Artur | | | 1542 | GER | 0.00 | 1 | -0.85 | 20 | -17.00 | | | Stetz, Jan | | | 1633 | CZE | 0.50 | 1 | -0.27 | 20 | -5.40 | | | Svec, Ludek | | | 1678 | CZE | 0.00 | 1 | -0.72 | 20 | -14.40 | |
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) | | | | Mistrovstvi CR senioru nad 60 let 2015 | Rychnov nad Kneznou | CZE | 2015-08-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1816 | 1862 | 4.50 | 9 | -0.48 | 20 | -9.60 | |
| | Vejvoda, Jindrich | | | 1572 | CZE | 0.00 | 1 | -0.84 | 20 | -16.80 | | | Ondrich, Jan | | | 1683 | CZE | 0.50 | 1 | -0.23 | 20 | -4.60 | | | Dvorak, Eduard | | | 1697 | CZE | 0.50 | 1 | -0.22 | 20 | -4.40 | | | Zikavsky, Rudolf | | | 1645 | CZE | 1.00 | 1 | 0.22 | 20 | 4.40 | | | Brhlik, Antonin | | | 1725 | CZE | 1.00 | 1 | 0.32 | 20 | 6.40 | | | Sobotnik, Petr | | | 1984 | CZE | 1.00 | 1 | 0.67 | 20 | 13.40 | | | Just, Pavel | | | 1999 | CZE | 0.00 | 1 | -0.32 | 20 | -6.40 | | | Demeter, Istvan | f | | 2025 | HUN | 0.50 | 1 | 0.22 | 20 | 4.40 | | | Hlavac, Frantisek | | | 2010 | CZE | 0.00 | 1 | -0.30 | 20 | -6.00 | |
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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