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Individual Calculations March 2010 |
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| Van Herwaarden, Arjen Total change: -37.50 | |   |
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| Schaakfestival Groningen 2009 Open A | Groningen | NED | 2009-12-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2185 | 2162 | 2.00 | 8 | -1.83 | 15 | -27.45 | |
|  Wiel Van Der, John | g | | 2475 | NED | 0.00 | 1 | -0.14 | 15 | -2.10 | |  Grover, Sahaj | f | | 2372 | IND | 0.00 | 1 | -0.23 | 15 | -3.45 | | | Rauw, Gert Jan | | | 2070 | NED | 0.00 | 1 | -0.63 | 15 | -9.45 | | | Slagter, David | | | 2108 | NED | 0.00 | 1 | -0.58 | 15 | -8.70 | | | Holm, Sejer | | | 2256 | DEN | 0.00 | 1 | -0.37 | 15 | -5.55 | | | Warmelink, Evie | | | 1970 | NED | 0.50 | 1 | -0.25 | 15 | -3.75 | | | Vergert Ten, Paul | | | 2071 | NED | 0.50 | 1 | -0.12 | 15 | -1.80 | | | Cako, Laszlo | | | 2155 | NED | 1.00 | 1 | 0.49 | 15 | 7.35 | |
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) | | | | Klasse 1B Round 5-6 - Dutch Team Competition | Various | NED | 2010-01-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2274 | 2144 | 0.00 | 2 | -0.67 | 15 | -10.05 | |
| | Sielecki, Christoph | f | | 2386 | GER | 0.00 | 1 | -0.20 | 15 | -3.00 | | | Van Buitenen, Herbert | | | 2162 | NED | 0.00 | 1 | -0.47 | 15 | -7.05 | |
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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