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Individual Calculations March 2023 |
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| Borys, Marek Total change: -35.20 | |   |
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| 269th YMCA Winter 2023-C Round 4-7 | Warszawa | POL | 2023-02-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1334 | 1377 | 0.50 | 4 | -1.73 | 20 | -34.60 | |
|  Dabrowski, Leszek | | | 1316 | POL | 0.00 | 1 | -0.58 | 20 | -11.60 | |  Matyszkiewicz, Radoslaw | | | 1353 | POL | 0.00 | 1 | -0.53 | 20 | -10.60 | | | Malicka, Magdalena | | | 1280 | POL | 0.50 | 1 | -0.13 | 20 | -2.60 | | | Krolak, Grzegorz | | | 1386 | POL | 0.00 | 1 | -0.49 | 20 | -9.80 | |
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) | | | | XIII Otwarte Mistrzostwa Garnizonu Warszawa w szachach klasycznych 2023 Round 5-7 | Warszawa | POL | 2023-02-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1509 | 1377 | 1.00 | 3 | -0.03 | 20 | -0.60 | |
| | Urbaniak, Karol | | | 1603 | POL | 0.00 | 1 | -0.21 | 20 | -4.20 | | | Potynski, Hubert | | | 1253 | POL | 1.00 | 1 | 0.33 | 20 | 6.60 | | | Flis, Piotr | | | 1670 | POL | 0.00 | 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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