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Individual Calculations April 2009 |
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| Van Der Werf, Mark Total change: -9.30 | |   |
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| Meester - r 4-5 - Dutch Team Competition | Various | NED | 2008-09-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2393 | 2414 | 0.50 | 2 | -0.56 | 10 | -5.60 | |
|  Lemmers, Oscar | m | | 2388 | NED | 0.50 | 1 | -0.04 | 10 | -0.40 | |  Jens, Jelmer | m | | 2397 | NED | 0.00 | 1 | -0.52 | 10 | -5.20 | |
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) | | | | 1A - Corus Chess Tournament - Tienkampen | Wijk aan Zee | NED | 2009-01-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2263 | 2424 | 6.00 | 9 | -0.37 | 10 | -3.70 | |
| | Heemskerk, Wim | f | | 2224 | NED | 0.50 | 1 | -0.26 | 10 | -2.60 | | | Langedijk, Ardjan | | | 2169 | NED | 1.00 | 1 | 0.19 | 10 | 1.90 | | | Bezemer, Arno | f | | 2342 | NED | 1.00 | 1 | 0.39 | 10 | 3.90 | | | Vrenegoor, Taco | f | | 2321 | NED | 0.50 | 1 | -0.14 | 10 | -1.40 | | | Konings, Frans | | | 2232 | NED | 1.00 | 1 | 0.25 | 10 | 2.50 | | | Smits, Mark | | | 2305 | NED | 0.50 | 1 | -0.16 | 10 | -1.60 | | | Vedder, Richard | f | | 2329 | NED | 0.00 | 1 | -0.63 | 10 | -6.30 | | | Royakkers, Guido | | | 2212 | NED | 0.50 | 1 | -0.27 | 10 | -2.70 | | | Plukkel, Sjoerd | | | 2236 | NED | 1.00 | 1 | 0.26 | 10 | 2.60 | |
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) | | |
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