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Individual Calculations January 2019 |
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| Parrella, Alfredo Total change: -6.60 | |   |
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| 28th World Senior Chess Championship 2018 Open 50 | Bled | SLO | 2018-11-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1845 | 2123 | 0.50 | 1 | -0.33 | 20 | -6.60 | |
|  Serafim Junior, Arnor | | | 1845 | BRA | 0.50 | 1 | -0.33 | 20 | -6.60 | |
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) | | |
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