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Individual Calculations August 2023 |
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| Rehacek, Oldrich Total change: 3.00 | |   |
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| PRAGUE INTERNATIONAL CHESS FESTIVAL 2023 - FIDE open | Prague | CZE | 2023-06-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1795 | 1455 | 1.50 | 4 | 1.01 | 20 | 20.20 | |
|  Rucabado, Stefan | | | 1894 | CZE | 0.00 | 1 | -0.06 | 20 | -1.20 | | | Sulcova, Tereza Radmila | | | 1702 | CZE | 0.00 | 1 | -0.19 | 20 | -3.80 | |  Barabas, Ales | | | 1824 | CZE | 1.00 | 1 | 0.90 | 20 | 18.00 | | | Boschmann, Alexander | | | 1758 | GER | 0.50 | 1 | 0.36 | 20 | 7.20 | |
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) | | | | Open Bohumin 2023 - B | Bohumin | CZE | 2023-07-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1465 | 1455 | 2.50 | 7 | -1.02 | 20 | -20.40 | |
| | Wierzbicki, Dawid | | | 1753 | POL | 0.00 | 1 | -0.15 | 20 | -3.00 | | | Bjolek, Jan | | | 1843 | CZE | 0.50 | 1 | 0.41 | 20 | 8.20 | | | Jurok, Vojtech | | | 1725 | CZE | 0.00 | 1 | -0.17 | 20 | -3.40 | | | Horak, Kevin | | | 1220 | CZE | 0.00 | 1 | -0.79 | 20 | -15.80 | | | Burszczan, Piotr | | | 1249 | POL | 1.00 | 1 | 0.24 | 20 | 4.80 | | | Lach, Alicja | | | 1240 | POL | 0.00 | 1 | -0.77 | 20 | -15.40 | | | Sobek, Lukas | | | 1226 | CZE | 1.00 | 1 | 0.21 | 20 | 4.20 | |
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) | | | | CZECH OPEN 2023 - E | Pardubice | CZE | 2023-07-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1874 | 1455 | 0.50 | 4 | 0.16 | 20 | 3.20 | |
| | Pecka, Jan | | | 2054 | CZE | 0.00 | 1 | -0.02 | 20 | -0.40 | | | Sobotka, Jiri | | | 1822 | CZE | 0.50 | 1 | 0.40 | 20 | 8.00 | | | Stecko, Ivan | | | 1796 | SVK | 0.00 | 1 | -0.12 | 20 | -2.40 | | | Hampl, David | | | 1823 | CZE | 0.00 | 1 | -0.10 | 20 | -2.00 | |
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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