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Individual Calculations February 2023 |
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| Labruyere, Roger Total change: -26.40 | |   |
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| Chessfestival Groningen 2022 Open A | Groningen | NED | 2022-12-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2224 | 2104 | 3.50 | 9 | 0.33 | 40 | 13.20 | |
|  Lahaye, Rick | | | 2435 | NED | 0.50 | 1 | 0.38 | 40 | 15.20 | |  De Jong, Migchiel | m | | 2336 | NED | 0.00 | 1 | -0.21 | 40 | -8.40 | | | Niharika, Challa | | | 2044 | IND | 1.00 | 1 | 0.42 | 40 | 16.80 | | | Pham, Khoi | f | | 2344 | NED | 0.00 | 1 | -0.20 | 40 | -8.00 | | | Mitchell, Martin | | | 2193 | SCO | 1.00 | 1 | 0.62 | 40 | 24.80 | | | Elgersma, Onno | f | | 2291 | NED | 0.00 | 1 | -0.26 | 40 | -10.40 | | | Tabak, Stefan | f | | 2129 | NED | 0.00 | 1 | -0.47 | 40 | -18.80 | | | Shakhverdian, William | | | 2143 | NED | 0.00 | 1 | -0.45 | 40 | -18.00 | | | Albers, Sasa | | | 2103 | NED | 1.00 | 1 | 0.50 | 40 | 20.00 | |
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) | | | | Tata Steel weekendvierkampen 2023 | Wijk aan Zee | NED | 2023-01-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2107 | 2106 | 0.50 | 3 | -0.99 | 40 | -39.60 | |
| | De Boer, Bas | | | 2171 | NED | 0.00 | 1 | -0.41 | 40 | -16.40 | | | Klaren, Duncan | | | 2089 | NED | 0.00 | 1 | -0.52 | 40 | -20.80 | | | Schoonackers, Jeroen | | | 2061 | NED | 0.50 | 1 | -0.06 | 40 | -2.40 | |
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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