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Individual Calculations September 2021 |
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| Kozak, Jan Total change: -6.20 | |   |
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| 247th YMCA Summer 2021-D | Warszawa | POL | 2021-07-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1099 | 1285 | 5.50 | 9 | -1.18 | 20 | -23.60 | |
|  Dabrowski, Dawid | | | 1096 | POL | 1.00 | 1 | 0.25 | 20 | 5.00 | |  Sloniewski, Wojciech | | | 1022 | POL | 1.00 | 1 | 0.18 | 20 | 3.60 | | | Przybylik, Mariusz | | | 1147 | POL | 0.00 | 1 | -0.69 | 20 | -13.80 | | | Malicki, Jan | | | 1119 | POL | 0.00 | 1 | -0.72 | 20 | -14.40 | | | Zmijewski, Michal | | | 1119 | POL | 0.00 | 1 | -0.72 | 20 | -14.40 | | | Dabrowski, Dawid | | | 1096 | POL | 1.00 | 1 | 0.25 | 20 | 5.00 | | | Sloniewski, Wojciech | | | 1022 | POL | 1.00 | 1 | 0.18 | 20 | 3.60 | | | Przybylik, Mariusz | | | 1147 | POL | 0.50 | 1 | -0.19 | 20 | -3.80 | | | Zmijewski, Michal | | | 1119 | POL | 1.00 | 1 | 0.28 | 20 | 5.60 | |
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) | | | | Festiwal Szachowy Szachy w Ustroniu lacza pokolenia - Grupa C | Ustron | POL | 2021-08-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1341 | 1324 | 4.00 | 7 | 0.66 | 20 | 13.20 | |
| | Nowara, Filip | | | 1065 | POL | 1.00 | 1 | 0.18 | 20 | 3.60 | | | Hasinski, Sebastian | | | 1549 | POL | 1.00 | 1 | 0.78 | 20 | 15.60 | | | Krol, Jan | | | 1500 | POL | 0.00 | 1 | -0.27 | 20 | -5.40 | | | Jurok, Vojtech | | | 1589 | CZE | 1.00 | 1 | 0.82 | 20 | 16.40 | | | Trochimczuk, Szymon | | | 1493 | POL | 0.00 | 1 | -0.28 | 20 | -5.60 | | | Brzezina, Pawel | | | 1119 | POL | 0.00 | 1 | -0.76 | 20 | -15.20 | | | Seemann, Lena | | | 1069 | POL | 1.00 | 1 | 0.19 | 20 | 3.80 | |
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) | | | | Otwarty Turniej Szachowy Pulawskie Lato z "HUSARIA" 2021 | Pulawy | POL | 2021-08-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1603 | 1324 | 1.00 | 4 | 0.21 | 20 | 4.20 | |
| | Cap, Piotr | | | 1724 * | POL | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Pawlowski, Slawomir | | | 1632 | POL | 0.00 | 1 | -0.14 | 20 | -2.80 | | | Swatek, Wojciech | | | 1724 * | POL | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Czapka, Piotr | | | 1331 | POL | 1.00 | 1 | 0.51 | 20 | 10.20 | | | * 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) | | |
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