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Individual Calculations November 2021 |
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| Perrakis, Polychronis Total change: -49.20 | |   |
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| World Amateur Chess Championship 2021 U1700 open | Rhodes | GRE | 2021-10-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1457 | 1627 | 1.00 | 5 | -2.46 | 20 | -49.20 | |
|  Bozkurt, Serkan | | | 1668 | TUR | 0.50 | 1 | 0.06 | 20 | 1.20 | |  Sulaimanov, Tilekmatali | | | 1657 | KGZ | 0.00 | 1 | -0.46 | 20 | -9.20 | | | Saket, Kumar | | | 1407 | IND | 0.00 | 1 | -0.78 | 20 | -15.60 | | | Alban Mendez, Carlos Billy | | | 1322 | ECU | 0.00 | 1 | -0.86 | 20 | -17.20 | | | Alnaimi, Geith | | | 1229 | UAE | 0.50 | 1 | -0.42 | 20 | -8.40 | |
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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