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Individual Calculations October 2021 |
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| Piesik, Piotr Total change: -14.80 | |   |
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| Guimaraes Chess Open 2021 (PCT) | Guimaraes | POR | 2021-08-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2138 | 2404 | 5.50 | 9 | -1.75 | 10 | -17.50 | |
|  Perez Sousa, Xabier | | | 2004 * | ESP | 1.00 | 1 | 0.08 | 10 | 0.80 | |  Otero Nogueira, Brais | | | 2111 | ESP | 1.00 | 1 | 0.15 | 10 | 1.50 | | | De Ruiter, Danny | f | | 2251 | NED | 0.00 | 1 | -0.70 | 10 | -7.00 | | | Ferreira, Hugo Miguel Da Costa | | | 2078 | POR | 0.00 | 1 | -0.87 | 10 | -8.70 | | | Dumoulin, Michel | | | 2004 * | BEL | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Tubio Agrasar, Pablo | | | 2021 | ESP | 1.00 | 1 | 0.09 | 10 | 0.90 | | | Sharma, Isha | | wm | 2236 | IND | 1.00 | 1 | 0.28 | 10 | 2.80 | | | Garcia Martin, Marta | m | wg | 2317 | ESP | 0.00 | 1 | -0.62 | 10 | -6.20 | | | Louis, Thibault | f | | 2221 | FRA | 0.50 | 1 | -0.24 | 10 | -2.40 | | | * 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) | | | | Druzynowe Mistrzostwa Polski 2021 - II liga | Sypniewo | POL | 2021-09-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2253 | 2404 | 3.00 | 4 | 0.27 | 10 | 2.70 | |
| | Krzywda, Andrzej | c | | 2076 | POL | 1.00 | 1 | 0.13 | 10 | 1.30 | | | Nowak, Kamil | | | 2318 | POL | 0.50 | 1 | -0.12 | 10 | -1.20 | | | Murdzia, Piotr | m | | 2425 | POL | 0.50 | 1 | 0.03 | 10 | 0.30 | | | Stysiak, Szymon | | | 2193 | POL | 1.00 | 1 | 0.23 | 10 | 2.30 | |
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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