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Individual Calculations November 2011 |
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| Duijker, Rick Total change: -9.75 | |   |
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| Open BDO Chess Tournament | Haarlem | NED | 2011-08-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2180 | 2276 | 5.00 | 9 | -0.56 | 15 | -8.40 | |
|  Kolodkin, Daniil | | | 1943 | NED | 1.00 | 1 | 0.12 | 15 | 1.80 | |  Goes, Sten | | | 2104 | NED | 1.00 | 1 | 0.27 | 15 | 4.05 | | | Plukkel, Sjoerd | | | 2298 | NED | 0.50 | 1 | 0.03 | 15 | 0.45 | | | Erwich, Frank | f | | 2360 | NED | 0.50 | 1 | 0.12 | 15 | 1.80 | | | Kohler, Aran | f | | 2225 | NED | 0.50 | 1 | -0.07 | 15 | -1.05 | | | Kuijf, Marinus | m | | 2423 | NED | 0.00 | 1 | -0.30 | 15 | -4.50 | | | Ritsema, Ronald | | | 2103 | NED | 0.50 | 1 | -0.23 | 15 | -3.45 | | | Hegarty, Sarah N | | wf | 2065 | ENG | 1.00 | 1 | 0.23 | 15 | 3.45 | | | Van Foreest, Jorden | | | 2097 | NED | 0.00 | 1 | -0.73 | 15 | -10.95 | |
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) | | | | Dutch Team Competition - 2C - Round 1 | Various | NED | 2011-09-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2395 | 2214 | 0.50 | 1 | 0.24 | 15 | 3.60 | |
| | De Jager, Jaap | f | | 2395 | NED | 0.50 | 1 | 0.24 | 15 | 3.60 | |
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) | | | | Univé Open | Hoogeveen | NED | 2011-10-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2221 | 2214 | 3.50 | 8 | -0.33 | 15 | -4.95 | |
| | Dijkhuis, Tycho | | | 1873 | NED | 1.00 | 1 | 0.12 | 15 | 1.80 | | | Van Eijk, Sander | f | | 2372 | NED | 0.00 | 1 | -0.29 | 15 | -4.35 | | | Klein, David | f | | 2359 | NED | 0.00 | 1 | -0.31 | 15 | -4.65 | | | Popilski, Gil | m | | 2381 | ISR | 0.50 | 1 | 0.22 | 15 | 3.30 | | | Potze, Rudolf | | | 2126 | NED | 1.00 | 1 | 0.38 | 15 | 5.70 | | | Donchenko, Alexander | f | | 2304 | GER | 0.00 | 1 | -0.38 | 15 | -5.70 | | | Sekandar, Kambiz | | | 1922 | NED | 1.00 | 1 | 0.15 | 15 | 2.25 | | | Raznikov, Danny | m | | 2433 | ISR | 0.00 | 1 | -0.22 | 15 | -3.30 | |
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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