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Individual Calculations September 2009 |
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| Kabos, Tobias Total change: 53.05 | |   |
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| Intomart GfK Open 2009 | Hilversum | NED | 2009-06-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2206 | 2109 | 4.50 | 8 | 1.48 | 25 | 37.00 | |
|  Slingerland, Fred | m | | 2389 | NED | 0.00 | 1 | -0.16 | 25 | -4.00 | | | Van Engen, Herman | | | 2163 | NED | 0.00 | 1 | -0.42 | 25 | -10.50 | |  Theulings, Paul-Peter | c | | 2147 | NED | 0.50 | 1 | 0.05 | 25 | 1.25 | | | Schroer, Marcel | | | 2140 | NED | 1.00 | 1 | 0.54 | 25 | 13.50 | | | Beijerinck, Nick | | | 1985 | NED | 1.00 | 1 | 0.33 | 25 | 8.25 | | | Strating, Sybolt | f | | 2328 | NED | 1.00 | 1 | 0.78 | 25 | 19.50 | | | Motoc, Alina | | wg | 2304 | ROU | 0.00 | 1 | -0.25 | 25 | -6.25 | | | De Groote, Ewoud | | | 2191 | NED | 1.00 | 1 | 0.61 | 25 | 15.25 | |
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) | | | NOTE: K factor changed | | Dutch Open | Dieren | NED | 2009-07-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2241 | 2122 | 4.00 | 9 | 0.90 | 15 | 13.50 | |
| | Pruijssers, Roeland | m | | 2401 | NED | 0.00 | 1 | -0.16 | 15 | -2.40 | | | Wilgenhof, Otto | | | 2207 | NED | 1.00 | 1 | 0.62 | 15 | 9.30 | | | Van Dooren, Dirk | f | | 2308 | NED | 0.50 | 1 | 0.24 | 15 | 3.60 | | | Van Der Poel, Henk | f | | 2282 | NED | 0.50 | 1 | 0.21 | 15 | 3.15 | | | Rajesh, V A V | f | | 2249 | IND | 0.00 | 1 | -0.33 | 15 | -4.95 | | | Duijker, Rick | | | 2240 | NED | 0.50 | 1 | 0.16 | 15 | 2.40 | | | Vogel, Jaap | f | | 2237 | NED | 0.00 | 1 | -0.34 | 15 | -5.10 | | | Van Blokland, Tjerk | | | 2014 | NED | 1.00 | 1 | 0.35 | 15 | 5.25 | | | Van Veen, Oscar | f | | 2233 | NED | 0.50 | 1 | 0.15 | 15 | 2.25 | |
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) | | | NOTE: K factor changed | | University of Twente Open Dutch Youth Chess Championship 2009 | Enschede | NED | 2009-08-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2044 | 2122 | 5.50 | 9 | 0.17 | 15 | 2.55 | |
| | Gorter, Eva | | | 1780 | NED | 1.00 | 1 | 0.12 | 15 | 1.80 | | | De Wilde, Rik | | | 1919 | NED | 1.00 | 1 | 0.24 | 15 | 3.60 | | | Vereggen, Lars | | | 1936 | NED | 1.00 | 1 | 0.26 | 15 | 3.90 | | | Ootes, Lars | | | 2261 | NED | 0.00 | 1 | -0.31 | 15 | -4.65 | | | Roorda, Thijs | | | 2059 | NED | 1.00 | 1 | 0.41 | 15 | 6.15 | | | De Groote, Ewoud | | | 2206 | NED | 0.50 | 1 | 0.12 | 15 | 1.80 | | | Blom, Vincent | | | 2137 | NED | 0.50 | 1 | 0.02 | 15 | 0.30 | | | Tan, Jonathan | | | 2162 | NED | 0.00 | 1 | -0.44 | 15 | -6.60 | | | Dirksen, Marieke | | | 1932 | NED | 0.50 | 1 | -0.25 | 15 | -3.75 | |
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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