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Individual Calculations February 2023 |
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| Van Kuijk, Vadim Total change: -22.80 | |   |
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| Chessfestival Groningen 2022 Open A | Groningen | NED | 2022-12-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2102 | 2031 | 3.00 | 7 | 0.15 | 40 | 6.00 | |
|  Ratsma, Midas | f | | 2218 | NED | 0.00 | 1 | -0.26 | 40 | -10.40 | |  Matsumura, Cocoro | | | 2133 | FRA | 0.00 | 1 | -0.36 | 40 | -14.40 | | | Shakhverdian, William | | | 2143 | NED | 0.00 | 1 | -0.35 | 40 | -14.00 | | | Westerlaan, Sander | | | 1954 | NED | 0.00 | 1 | -0.61 | 40 | -24.40 | | | Markus, John Raymond | | | 2082 | NED | 1.00 | 1 | 0.57 | 40 | 22.80 | | | Bakker, Jouke | | | 2091 | NED | 1.00 | 1 | 0.58 | 40 | 23.20 | | | Boer, Alef | | | 2091 | NED | 1.00 | 1 | 0.58 | 40 | 23.20 | |
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) | | | | Tata Steel Tienkampen 2023 | Wijk aan Zee | NED | 2023-01-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1982 | 2003 | 3.50 | 8 | -0.72 | 40 | -28.80 | |
| | Beukema, Henk Jan | | | 1967 | NED | 0.50 | 1 | -0.05 | 40 | -2.00 | | | Oranje, Richard | | | 2028 | NED | 1.00 | 1 | 0.53 | 40 | 21.20 | | | Tromp, Patriek | | | 2001 | NED | 0.00 | 1 | -0.50 | 40 | -20.00 | | | Van Toor, Kees | | | 1902 | NED | 0.00 | 1 | -0.64 | 40 | -25.60 | | | Schultze, Joerg-Martin | | | 1942 | GER | 1.00 | 1 | 0.42 | 40 | 16.80 | | | Oosterlaken, Ed | | | 2036 | NED | 0.00 | 1 | -0.45 | 40 | -18.00 | | | Dijkstra, Matthijs | | | 2000 | NED | 1.00 | 1 | 0.50 | 40 | 20.00 | | | Brinkers, Kees | | | 1982 | NED | 0.00 | 1 | -0.53 | 40 | -21.20 | |
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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