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Individual Calculations September 2023 |
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| Van Pelt, Erwin Total change: -9.20 | |   |
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| Nazomervierkampentoernooi Assen 2023 | Assen | NED | 2023-08-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1998 | 1989 | 1.00 | 3 | -0.46 | 20 | -9.20 | |
|  Dijk, Rogier | | | 2008 | NED | 0.50 | 1 | 0.03 | 20 | 0.60 | |  Goudriaan, Rafael | | | 1990 | NED | 0.50 | 1 | 0.00 | 20 | 0.00 | | | Hummel, Joop | | | 1997 | NED | 0.00 | 1 | -0.49 | 20 | -9.80 | |
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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