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Individual Calculations February 2023 |
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| Dekker, Jasper Total change: 0.40 | |   |
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| Chessfestival Groningen 2022 Compact | Groningen | NED | 2022-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1728 | 1883 | 2.50 | 4 | -0.32 | 20 | -6.40 | |
|  Seijen, Henk | | | 1708 | NED | 0.00 | 1 | -0.73 | 20 | -14.60 | |  Voermans, Adri | | | 1781 | NED | 1.00 | 1 | 0.36 | 20 | 7.20 | | | De Lange, Gerard | | | 1673 | NED | 1.00 | 1 | 0.23 | 20 | 4.60 | | | Torensma, Jan | | | 1751 | NED | 0.50 | 1 | -0.18 | 20 | -3.60 | |
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) | | | | Tata Steel weekendvierkampen 2023 | Wijk aan Zee | NED | 2023-01-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2113 | 1873 | 2.00 | 3 | 1.38 | 20 | 27.60 | |
| | Rill, Gerard | | | 2195 | NED | 0.00 | 1 | -0.13 | 20 | -2.60 | | | Stolte, Maarten | | | 2088 | NED | 1.00 | 1 | 0.77 | 20 | 15.40 | | | Woudt, Edwin | | | 2057 | NED | 1.00 | 1 | 0.74 | 20 | 14.80 | |
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) | | | | Tata Steel dagvierkampen 2023 | Wijk aan Zee | NED | 2023-01-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1986 | 1873 | 0.00 | 3 | -1.04 | 20 | -20.80 | |
| | Van Dodeweerd, Matthijs | | | 2014 | NED | 0.00 | 1 | -0.31 | 20 | -6.20 | | | Versporten, Wim | | | 1958 | BEL | 0.00 | 1 | -0.38 | 20 | -7.60 | | | Arp, Frans | | | 1986 | NED | 0.00 | 1 | -0.35 | 20 | -7.00 | |
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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