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Individual Calculations August 2021 |
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| Lech, Jan Total change: 13.60 | |   |
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| Najdorf Chess Festival 2021 gr. B | Warszawa | POL | 2021-07-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1192 | 1252 | 1.50 | 3 | -0.24 | 40 | -9.60 | |
|  Mazus, Jakub | | | 1095 | POL | 0.00 | 1 | -0.71 | 40 | -28.40 | | | Klask, Franciszek | | | 1059 | POL | 1.00 | 1 | 0.25 | 40 | 10.00 | | | Jaszczuk, Piotr | | | 1421 | POL | 0.50 | 1 | 0.22 | 40 | 8.80 | |
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) | | | | Warsaw Chess Open - C | Warszawa | POL | 2021-07-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1560 | 1252 | 1.00 | 3 | 0.58 | 40 | 23.20 | |
|  Dabrowska, Aleksandra | | | 1568 | POL | 0.00 | 1 | -0.13 | 40 | -5.20 | | | Jarmolowski, Tadeusz | | | 1570 | POL | 1.00 | 1 | 0.87 | 40 | 34.80 | | | Nisztuk, Michal | | | 1541 | POL | 0.00 | 1 | -0.16 | 40 | -6.40 | |
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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