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Individual Calculations February 2023 |
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| Gerdes, Jesko Total change: 74.80 | |   |
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| Chessfestival Groningen 2022 Open C | Groningen | NED | 2022-12-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1557 | 1264 | 3.00 | 7 | 1.87 | 40 | 74.80 | |
|  Van Wieren, Selmar | | | 1495 | NED | 1.00 | 1 | 0.79 | 40 | 31.60 | |  Jorritsma, Johan | | | 1572 | NED | 0.50 | 1 | 0.36 | 40 | 14.40 | | | Graaff, Rob | | | 1533 | NED | 0.50 | 1 | 0.33 | 40 | 13.20 | | | Pompstra, Henk | | | 1696 | NED | 0.00 | 1 | -0.07 | 40 | -2.80 | | | Bergshoeff, Bert | | | 1595 | NED | 0.50 | 1 | 0.38 | 40 | 15.20 | | | Van Der Leest, Karel | | | 1443 | NED | 0.00 | 1 | -0.27 | 40 | -10.80 | | | Bakkes, Frits | | | 1564 | NED | 0.50 | 1 | 0.35 | 40 | 14.00 | |
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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