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Individual Calculations February 2019 |
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| Van Roon, Sjoerd Total change: -16.40 | |   |
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| Chess Festival Groningen 2018 - Open A | Groningen | NED | 2018-12-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2168 | 2136 | 4.00 | 9 | -0.28 | 40 | -11.20 | |
|  Zwirs, Nico | | | 2414 | NED | 1.00 | 1 | 0.83 | 40 | 33.20 | |  Tiviakov, Sergei | g | | 2536 * | NED | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Maatman, Nick | f | | 2363 | NED | 0.00 | 1 | -0.21 | 40 | -8.40 | | | Keuning, Selwin | | | 2013 | NED | 0.00 | 1 | -0.67 | 40 | -26.80 | | | Van Der Berg, Wessel | | | 2032 | NED | 1.00 | 1 | 0.36 | 40 | 14.40 | | | Rut, Vojtech | | | 2140 | CZE | 1.00 | 1 | 0.51 | 40 | 20.40 | | | Nicolai, Amir | | | 2074 | NED | 0.00 | 1 | -0.59 | 40 | -23.60 | | | Van Foreest, Machteld | | | 1925 | NED | 0.00 | 1 | -0.77 | 40 | -30.80 | | | Van Leusden, Dennis | | | 2016 | NED | 1.00 | 1 | 0.34 | 40 | 13.60 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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 Chess Tournament 2018 - Weekendvierkampen | Wijk aan Zee | NED | 2019-01-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2105 | 2136 | 1.50 | 3 | -0.13 | 40 | -5.20 | |
| | Mijnheer, Peter | | | 2069 | NED | 0.50 | 1 | -0.09 | 40 | -3.60 | | | Grondsma, Mark | | | 2080 | NED | 1.00 | 1 | 0.42 | 40 | 16.80 | | | Hovenga, Alje | | | 2167 | NED | 0.00 | 1 | -0.46 | 40 | -18.40 | |
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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