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Individual Calculations February 2023 |
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| Roos, Gerrit Total change: -20.80 | |   |
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| Tata Steel dagvierkampen 2023 | Wijk aan Zee | NED | 2023-01-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1801 | 1809 | 0.50 | 2 | -0.52 | 40 | -20.80 | |
|  De Louw, Peter | | | 1801 | NED | 0.00 | 1 | -0.51 | 40 | -20.40 | |  De Beer, Norbert | | | 1801 | NED | 0.50 | 1 | -0.01 | 40 | -0.40 | |
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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