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Individual Calculations September 2017 |
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| Boersma, Jan Total change: -38.60 | |   |
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| Dutch Open 2017 | Dieren | NED | 2017-07-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2145 | 2095 | 2.00 | 9 | -1.93 | 20 | -38.60 | |
|  Roy, Prantik | m | | 2351 | IND | 0.00 | 1 | -0.19 | 20 | -3.80 | |  Blok, Michiel | | | 2160 | NED | 1.00 | 1 | 0.59 | 20 | 11.80 | | | Kooijmans, Jermo | | | 2272 | NED | 0.00 | 1 | -0.27 | 20 | -5.40 | | | Beukema, Jasper | f | | 2218 | BEL | 0.00 | 1 | -0.33 | 20 | -6.60 | | | Roorda, Thijs | | | 2115 | NED | 0.00 | 1 | -0.47 | 20 | -9.40 | | | Van Der Zon, Stef | | | 2103 | NED | 0.00 | 1 | -0.49 | 20 | -9.80 | | | Pols, Wiggert | | | 2090 | NED | 0.50 | 1 | -0.01 | 20 | -0.20 | | | Kalle, Erwin | | | 2005 | NED | 0.00 | 1 | -0.62 | 20 | -12.40 | | | Elgersma, Onno | | | 1992 | NED | 0.50 | 1 | -0.14 | 20 | -2.80 | |
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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