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Individual Calculations February 2019 |
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| Lahaye, Rick Total change: 4.10 | |   |
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| Chess Festival Groningen 2018 - Open A | Groningen | NED | 2018-12-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2291 | 2404 | 6.00 | 9 | 0.19 | 10 | 1.90 | |
|  De Boer, Bas | | | 2134 | NED | 1.00 | 1 | 0.17 | 10 | 1.70 | |  Baum, Bernd, Dr. | f | | 2252 | GER | 1.00 | 1 | 0.30 | 10 | 3.00 | | | Vrolijk, Liam | m | | 2440 | NED | 0.00 | 1 | -0.45 | 10 | -4.50 | | | Schippers, Maurice | | | 2270 | NED | 0.50 | 1 | -0.18 | 10 | -1.80 | | | Kokje, Joris | f | | 2244 | NED | 1.00 | 1 | 0.29 | 10 | 2.90 | | | Pruijssers, Roeland | g | | 2520 | NED | 0.00 | 1 | -0.34 | 10 | -3.40 | | | Kabos, Tobias | f | | 2299 | NED | 0.50 | 1 | -0.14 | 10 | -1.40 | | | Van Meegen, Ruud | | | 2230 | NED | 1.00 | 1 | 0.27 | 10 | 2.70 | | | Jedlicka, Ales | f | | 2226 | CZE | 1.00 | 1 | 0.27 | 10 | 2.70 | |
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) | | | | Tata Steel Chess Tournament 2018 - Weekendvierkampen | Wijk aan Zee | NED | 2019-01-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2200 | 2407 | 2.50 | 3 | 0.22 | 10 | 2.20 | |
| | Lammens, Tim | f | | 2255 | NED | 0.50 | 1 | -0.20 | 10 | -2.00 | | | Brandes, Stephan | | | 2125 | GER | 1.00 | 1 | 0.16 | 10 | 1.60 | | | Duijn, Rob | | | 2219 | NED | 1.00 | 1 | 0.26 | 10 | 2.60 | |
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) | | |
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