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Individual Calculations February 2019 |
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| Hilwerda, Jonas Total change: 140.04 | |   |
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| Chess Festival Groningen 2018 - Open A | Groningen | NED | 2018-12-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2243 | 2128 | 5.00 | 9 | 1.86 | 36 | 66.96 | |
|  Kollen, Zyon | f | | 2363 | NED | 0.00 | 1 | -0.21 | 36 | -7.56 | |  Sparenberg, Erik | | | 2215 | NED | 1.00 | 1 | 0.62 | 36 | 22.32 | | | Pel, Bonno | f | | 2279 | NED | 0.50 | 1 | 0.20 | 36 | 7.20 | | | Baum, Bernd, Dr. | f | | 2252 | GER | 0.00 | 1 | -0.33 | 36 | -11.88 | | | Elgersma, Simon | | | 2200 | NED | 0.00 | 1 | -0.40 | 36 | -14.40 | | | De Boer, Bas | | | 2134 | NED | 1.00 | 1 | 0.51 | 36 | 18.36 | | | Kokje, Joris | f | | 2244 | NED | 0.50 | 1 | 0.16 | 36 | 5.76 | | | De Groot, Hendrik | | | 2128 | NED | 1.00 | 1 | 0.50 | 36 | 18.00 | | | Grooten, Herman | m | | 2374 | NED | 1.00 | 1 | 0.81 | 36 | 29.16 | |
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 |
| 2120 | 2136 | 2.50 | 3 | 0.94 | 36 | 33.84 | |
| | Nagel, Yvette | | wf | 1999 | NED | 1.00 | 1 | 0.32 | 36 | 11.52 | | | Trzaska, Peter | | | 2110 | GER | 1.00 | 1 | 0.46 | 36 | 16.56 | | | Kokje, Joris | f | | 2250 | NED | 0.50 | 1 | 0.16 | 36 | 5.76 | |
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) | | | | 21. Ruegenwalder NordWest-Cup Open A | Bad Zwischenahn | GER | 2019-01-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2208 | 2136 | 4.00 | 7 | 1.09 | 36 | 39.24 | |
| | Tell, Michael | | | 1891 | GER | 1.00 | 1 | 0.20 | 36 | 7.20 | | | Lindberg, Bengt | m | | 2390 | SWE | 1.00 | 1 | 0.81 | 36 | 29.16 | | | Baskin, Robert | m | | 2364 | GER | 0.00 | 1 | -0.21 | 36 | -7.56 | | | Adam, Detlef | | | 2047 | GER | 1.00 | 1 | 0.38 | 36 | 13.68 | | | Jaracz, Pawel | g | | 2463 | POL | 0.00 | 1 | -0.13 | 36 | -4.68 | | | Guazzelli, Jean-Baptiste | | | 2052 | FRA | 1.00 | 1 | 0.38 | 36 | 13.68 | | | Margraf, Daniel | | | 2252 | GER | 0.00 | 1 | -0.34 | 36 | -12.24 | |
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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