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Individual Calculations February 2023 |
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| Van Helvoort, Rob Total change: 8.80 | |   |
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| Tata Steel dagvierkampen 2023 | Wijk aan Zee | NED | 2023-01-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2103 | 2119 | 2.00 | 3 | 0.44 | 20 | 8.80 | |
|  Romkes, Abel | | | 2061 | NED | 1.00 | 1 | 0.42 | 20 | 8.40 | | | Maters, Arthur | | | 2154 | NED | 0.50 | 1 | 0.05 | 20 | 1.00 | |  Casteleijn, Diederick | | | 2095 | NED | 0.50 | 1 | -0.03 | 20 | -0.60 | |
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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