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Individual Calculations September 2017 |
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| Van Roon, Sjoerd Total change: 141.36 | |   |
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| Dutch Open 2017 - Reserve A | Dieren | NED | 2017-07-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2021 | 1894 | 6.00 | 9 | 3.02 | 38 | 114.76 | |
|  Taal, Rieks | | | 2100 | NED | 0.50 | 1 | 0.26 | 38 | 9.88 | |  Haans, Kaz | | | 2004 | NED | 1.00 | 1 | 0.65 | 38 | 24.70 | | | Dijkhuis, Oele | | | 2054 | NED | 1.00 | 1 | 0.71 | 38 | 26.98 | | | Bosch Van Rosenthal, Jeroe | | | 2021 | NED | 0.50 | 1 | 0.17 | 38 | 6.46 | | | Gutkind, Kedem | | | 2070 | NED | 1.00 | 1 | 0.73 | 38 | 27.74 | | | De Vries, Bram | | | 1962 | NED | 0.00 | 1 | -0.41 | 38 | -15.58 | | | Van Der Berg, Wessel | | | 1995 | NED | 0.00 | 1 | -0.36 | 38 | -13.68 | | | Apon, Iwahn | | | 1986 | NED | 1.00 | 1 | 0.63 | 38 | 23.94 | | | Berghuis, Marten | | | 1998 | NED | 1.00 | 1 | 0.64 | 38 | 24.32 | |
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) | | | | Open Dutch Junior Championship U20 | Borne | NED | 2017-08-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1897 | 1894 | 5.00 | 9 | 0.70 | 38 | 26.60 | |
| | De Boer, Eelke | | | 2190 | NED | 0.00 | 1 | -0.15 | 38 | -5.70 | | | Koning, Femke | | | 1494 * | NED | 1.00 | 1 | 0.08 | 38 | 3.04 | | | Terhuven, Patrick | | | 2121 | GER | 0.00 | 1 | -0.21 | 38 | -7.98 | | | Hofstra, Tijmen | | | 1551 | NED | 1.00 | 1 | 0.12 | 38 | 4.56 | | | Ramacker, Quinten | | | 1981 | BEL | 1.00 | 1 | 0.62 | 38 | 23.56 | | | Bekedam, Tyro | | | 2042 | NED | 0.50 | 1 | 0.20 | 38 | 7.60 | | | Knudsen, Simon | | | 1964 | GER | 0.00 | 1 | -0.40 | 38 | -15.20 | | | Pauwels, Xander | | | 2099 | BEL | 0.50 | 1 | 0.26 | 38 | 9.88 | | | Schuttevaer, Tim | | | 1628 | NED | 1.00 | 1 | 0.18 | 38 | 6.84 | | | * 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) | | |
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