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Individual Calculations February 2023 |
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| De Winter, Arthur Total change: 6.20 | |   |
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| Chessfestival Groningen 2022 Open A | Groningen | NED | 2022-12-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2243 | 2368 | 5.00 | 7 | 0.44 | 10 | 4.40 | |
|  Spit, Vincent | | | 2059 | NED | 1.00 | 1 | 0.14 | 10 | 1.40 | |  Nemec, Vjekoslav | c | | 2220 | CRO | 1.00 | 1 | 0.30 | 10 | 3.00 | | | Zwirs, Nico | m | | 2474 | NED | 0.00 | 1 | -0.36 | 10 | -3.60 | | | Wang, Ellen | | wm | 2020 | USA | 0.50 | 1 | -0.39 | 10 | -3.90 | | | Van Meegen, Ruud | f | | 2287 | NED | 0.50 | 1 | -0.11 | 10 | -1.10 | | | Elgersma, Onno | f | | 2291 | NED | 1.00 | 1 | 0.39 | 10 | 3.90 | | | Maatman, Nick | m | | 2348 | NED | 1.00 | 1 | 0.47 | 10 | 4.70 | |
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) | | | | Dutch Championship 2022 | Haarlem | NED | 2022-12-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2619 | 2368 | 0.00 | 2 | -0.38 | 10 | -3.80 | |
| | Warmerdam, Max | g | | 2619 | NED | 0.00 | 1 | -0.19 | 10 | -1.90 | | | Warmerdam, Max | g | | 2619 | NED | 0.00 | 1 | -0.19 | 10 | -1.90 | |
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 Qualifiers 2023 | Wijk aan Zee | NED | 2023-01-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2375 | 2371 | 5.00 | 9 | 0.56 | 10 | 5.60 | |
| | Pham, Khoi | f | | 2353 | NED | 0.00 | 1 | -0.53 | 10 | -5.30 | | | Beukema, Stefan | m | | 2411 | BEL | 1.00 | 1 | 0.56 | 10 | 5.60 | | | Martins, Vinicius Tine | f | | 2320 | BRA | 0.50 | 1 | -0.07 | 10 | -0.70 | | | Lopez, Jasel | m | | 2434 | ARU | 1.00 | 1 | 0.59 | 10 | 5.90 | | | Zwirs, Nico | m | | 2467 | NED | 1.00 | 1 | 0.63 | 10 | 6.30 | | | Culum, Sanjin | f | | 2242 | BIH | 1.00 | 1 | 0.33 | 10 | 3.30 | | | Van Der Werf, Mark | m | | 2412 | NED | 0.50 | 1 | 0.06 | 10 | 0.60 | | | Van Dael, Siem | f | | 2291 | NED | 0.00 | 1 | -0.61 | 10 | -6.10 | | | Pijpers, Arthur | m | | 2445 | NED | 0.00 | 1 | -0.40 | 10 | -4.00 | |
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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