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Individual Calculations April 2009 |
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| Langedijk, Ardjan Total change: -26.25 | |   |
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| 1A - r 4-5 - Dutch Team Competition | Various | NED | 2008-09-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2180 | 2251 | 1.00 | 2 | -0.20 | 15 | -3.00 | |
|  Van Zutphen, Jimmy | | | 2201 | NED | 0.00 | 1 | -0.57 | 15 | -8.55 | | | Ter Schegget, Bram | | | 2159 | NED | 1.00 | 1 | 0.37 | 15 | 5.55 | |
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 |
| 2292 | 2169 | 1.50 | 9 | -1.55 | 15 | -23.25 | |
| | Bezemer, Arno | f | | 2342 | NED | 0.00 | 1 | -0.27 | 15 | -4.05 | |  Van Der Werf, Mark | m | | 2424 | NED | 0.00 | 1 | -0.19 | 15 | -2.85 | | | Konings, Frans | | | 2232 | NED | 0.00 | 1 | -0.41 | 15 | -6.15 | | | Smits, Mark | | | 2305 | NED | 0.00 | 1 | -0.32 | 15 | -4.80 | | | Vedder, Richard | f | | 2329 | NED | 0.50 | 1 | 0.21 | 15 | 3.15 | | | Royakkers, Guido | | | 2212 | NED | 1.00 | 1 | 0.56 | 15 | 8.40 | | | Plukkel, Sjoerd | | | 2236 | NED | 0.00 | 1 | -0.41 | 15 | -6.15 | | | Heemskerk, Wim | f | | 2224 | NED | 0.00 | 1 | -0.42 | 15 | -6.30 | | | Vrenegoor, Taco | f | | 2321 | NED | 0.00 | 1 | -0.30 | 15 | -4.50 | |
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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