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Individual Calculations December 2021 |
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| Ptak, Pavel Total change: 3.00 | |   |
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| ST Open Memorial Josefa Mahrly 2021 | Praha | CZE | 2021-10-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1778 | 2012 | 4.50 | 7 | -0.79 | 20 | -15.80 | |
|  Cizek, Jan | | | 1612 * | CZE | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Holub, Jan | | | 1839 | CZE | 0.50 | 1 | -0.23 | 20 | -4.60 | | | Fiala, Jan | | | 1996 | CZE | 0.50 | 1 | -0.02 | 20 | -0.40 | | | Kalvach, Ladislav | | | 1726 | CZE | 0.50 | 1 | -0.34 | 20 | -6.80 | | | Hosticka, Frantisek | | | 2052 | CZE | 0.50 | 1 | 0.06 | 20 | 1.20 | | | Vorsilka, Jiri | | | 1612 * | CZE | 0.50 | 1 | -0.42 | 20 | -8.40 | | | Kosar, Milan | | | 1612 * | CZE | 1.00 | 1 | 0.08 | 20 | 1.60 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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) | | | | 2. liga A 2021/2022 r2-3 | various | CZE | 2021-11-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1999 | 2021 | 2.00 | 2 | 0.94 | 20 | 18.80 | |
| | Mach, Ondrej | | | 1911 | CZE | 1.00 | 1 | 0.35 | 20 | 7.00 | | | Mrkos, Miroslav | | | 2087 | CZE | 1.00 | 1 | 0.59 | 20 | 11.80 | |
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) | | |
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