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Individual Calculations February 2020 |
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| Visser, Johan Total change: -8.40 | |   |
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| Chessfestival Groningen 2019 - Open B&C | Groningen | NED | 2019-12-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1784 | 1716 | 2.50 | 7 | -0.42 | 20 | -8.40 | |
|  De Vries, Leon | | | 1934 | NED | 0.00 | 1 | -0.22 | 20 | -4.40 | |  Pouw, Marcel | | | 1880 | NED | 0.50 | 1 | 0.22 | 20 | 4.40 | | | Kastelijn, Twan | | | 1984 | NED | 0.00 | 1 | -0.17 | 20 | -3.40 | | | Van Indie, Frank | | | 1705 | NED | 0.00 | 1 | -0.52 | 20 | -10.40 | | | Arnold, Kiri | | | 1672 | NED | 0.00 | 1 | -0.56 | 20 | -11.20 | | | Arnold, Lorin | | | 1647 | NED | 1.00 | 1 | 0.40 | 20 | 8.00 | | | Arnold, Rhys | | | 1668 | NED | 1.00 | 1 | 0.43 | 20 | 8.60 | |
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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