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Individual Calculations December 2021 |
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| Portych, Vaclav Total change: -6.20 | |   |
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| KHSS - Krajsky prebor 2021/2022 r2-4 | various | CZE | 2021-10-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1857 | 1759 | 0.50 | 3 | -0.60 | 20 | -12.00 | |
|  Boruvka, Milan | | | 1882 | CZE | 0.00 | 1 | -0.33 | 20 | -6.60 | | | Trojan, Ondrej | | | 1855 | CZE | 0.00 | 1 | -0.37 | 20 | -7.40 | |  Dvorak, Milan | | | 1835 | CZE | 0.50 | 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) | | | | HRADEC KRALOVE OPEN 2021 A - FIDE open | Hradec Kralove | CZE | 2021-11-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1719 | 1755 | 2.00 | 4 | -0.12 | 20 | -2.40 | |
| | Winter, Ondrej | | | 2074 | CZE | 0.00 | 1 | -0.13 | 20 | -2.60 | | | Mraz, Pavel | | | 1508 | CZE | 0.50 | 1 | -0.31 | 20 | -6.20 | | | Kutak, Jaroslav | | | 1355 * | CZE | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Navratil, Jiri | | | 1938 | CZE | 0.50 | 1 | 0.24 | 20 | 4.80 | | | * 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) | | | | KHSS - Krajska soutez - skupina Vychod 2021/2022 r2-3 | various | CZE | 2021-11-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1511 | 1755 | 2.00 | 2 | 0.41 | 20 | 8.20 | |
| | Daniel, Robert | | | 1567 | CZE | 1.00 | 1 | 0.26 | 20 | 5.20 | | | Drasnar, Pavel | | | 1455 | CZE | 1.00 | 1 | 0.15 | 20 | 3.00 | |
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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