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Individual Calculations August 2018 |
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| Ptak, Ryszard Total change: -18.00 | |   |
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| 18th INTERNATIONAL NAJDORF CHESS FESTIVAL Gr. C | Warszawa | POL | 2018-07-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1344 | 1562 | 6.00 | 9 | -0.90 | 20 | -18.00 | |
|  Jaskulski, Jan | | | 1200 | POL | 0.50 | 1 | -0.40 | 20 | -8.00 | |  Oles, Jan | | | 1209 | POL | 1.00 | 1 | 0.11 | 20 | 2.20 | | | Adamala, Jacek | | | 1318 | POL | 1.00 | 1 | 0.20 | 20 | 4.00 | | | Kwiecinski, Rafal | | | 1459 | POL | 0.50 | 1 | -0.14 | 20 | -2.80 | | | Zdybel, Tomasz | | | 1390 | POL | 0.50 | 1 | -0.23 | 20 | -4.60 | | | Ossolinski, Lukasz | | | 1374 | POL | 0.50 | 1 | -0.24 | 20 | -4.80 | | | Pazdzierz, Paulina | | | 1337 | POL | 1.00 | 1 | 0.22 | 20 | 4.40 | | | Klim, Filip | | | 1430 | POL | 0.00 | 1 | -0.68 | 20 | -13.60 | | | Wierzchowski, Grzegorz | | | 1375 | POL | 1.00 | 1 | 0.26 | 20 | 5.20 | |
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) | | |
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