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Individual Calculations September 2023 |
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| Rookus, Sjoerd Total change: -38.20 | |   |
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| Dutch Open 2023 - Reserve A | Dieren | NED | 2023-07-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1769 | 1909 | 2.50 | 6 | -1.59 | 20 | -31.80 | |
|  Bon, Gijs | | | 1740 | NED | 0.50 | 1 | -0.22 | 20 | -4.40 | |  Buijnsters, Floris | | | 1657 | NED | 0.50 | 1 | -0.31 | 20 | -6.20 | | | Thijssen, Freek | | | 1709 | NED | 0.00 | 1 | -0.76 | 20 | -15.20 | | | Schoffelmeer, Jetse | | | 1805 | NED | 0.50 | 1 | -0.14 | 20 | -2.80 | | | Wenning, Niels | | | 1930 | GER | 1.00 | 1 | 0.53 | 20 | 10.60 | | | Wille, Ruud | | | 1770 | NED | 0.00 | 1 | -0.69 | 20 | -13.80 | |
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) | | | | Nazomervierkampentoernooi Assen 2023 | Assen | NED | 2023-08-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1952 | 1909 | 1.00 | 3 | -0.32 | 20 | -6.40 | |
| | Van T Veld, Menno | | | 1972 | NED | 0.00 | 1 | -0.41 | 20 | -8.20 | | | Zuiderweg, Edwin | | | 1929 | NED | 1.00 | 1 | 0.53 | 20 | 10.60 | | | Kazarjan, Gachatur | | | 1955 | NED | 0.00 | 1 | -0.44 | 20 | -8.80 | |
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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