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Individual Calculations December 2019 |
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| Petrovs, Arsenijs Total change: -2.40 | |   |
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| ISTRA-A Chess Cup for players with ELO until 1600 | Riga | LAT | 2019-11-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1318 | 1068 | 1.00 | 5 | -0.06 | 40 | -2.40 | |
|  Pomahs, Ziedonis | | | 1406 | LAT | 0.00 | 1 | -0.12 | 40 | -4.80 | |  Adamovics, Aleksejs | | | 1271 | LAT | 0.00 | 1 | -0.24 | 40 | -9.60 | | | Vazdike, Gunta | | | 1424 | LAT | 1.00 | 1 | 0.89 | 40 | 35.60 | | | Mednis, Agnis | | | 1402 | LAT | 0.00 | 1 | -0.12 | 40 | -4.80 | | | Sergejevs, Germans | | | 1087 | LAT | 0.00 | 1 | -0.47 | 40 | -18.80 | |
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) | | |
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