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Individual Calculations September 2017 |
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| Elgersma, Onno Total change: -139.60 | |   |
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| Dutch Open 2017 | Dieren | NED | 2017-07-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2125 | 1992 | 1.50 | 9 | -1.40 | 40 | -56.00 | |
|  Van Meegen, Ruud | | | 2239 | NED | 0.00 | 1 | -0.19 | 40 | -7.60 | |  De Boer, Bas | | | 2079 | NED | 0.00 | 1 | -0.38 | 40 | -15.20 | | | Roorda, Thijs | | | 2115 | NED | 0.50 | 1 | 0.17 | 40 | 6.80 | | | Ciornei, Dragos, Dr. | | | 2118 | GER | 0.00 | 1 | -0.33 | 40 | -13.20 | | | Bus, Tom | | | 2153 | NED | 0.00 | 1 | -0.29 | 40 | -11.60 | | | Tromp, Pieter | | | 2114 | NED | 0.00 | 1 | -0.33 | 40 | -13.20 | | | Verhoef, Pieter | | | 2122 | NED | 0.00 | 1 | -0.32 | 40 | -12.80 | | | Pols, Wiggert | | | 2090 | NED | 0.50 | 1 | 0.13 | 40 | 5.20 | | | Boersma, Jan | | | 2095 | NED | 0.50 | 1 | 0.14 | 40 | 5.60 | |
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) | | | | Open Dutch Youth Championship U14 | Borne | NED | 2017-08-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1670 | 2030 | 5.00 | 8 | -2.09 | 40 | -83.60 | |
| | Bleeker, Kasper | | | 1630 * | NED | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Roothaan, Elmar | | | 1659 | NED | 0.00 | 1 | -0.90 | 40 | -36.00 | | | Warnaar, Alisha | | | 1630 * | NED | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Baselmans, Daan | | | 1659 | NED | 1.00 | 1 | 0.10 | 40 | 4.00 | | | Salomons, Quinten | | | 1633 | NED | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Grutter, Tim | | | 1891 | NED | 0.00 | 1 | -0.69 | 40 | -27.60 | | | Albertus, Bram | | | 1630 * | NED | 0.50 | 1 | -0.42 | 40 | -16.80 | | | De Putter, Nina | | | 1630 * | NED | 0.50 | 1 | -0.42 | 40 | -16.80 | | | * 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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