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Individual Calculations March 2010 |
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| Westerop Van, Sebastiaan Total change: -11.10 | |   |
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| Schaakfestival Groningen 2009 Mini A | Groningen | NED | 2009-12-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2025 | 1983 | 1.00 | 5 | -1.24 | 15 | -18.60 | |
|  Bottema, Tom | | | 2213 | NED | 0.00 | 1 | -0.21 | 15 | -3.15 | |  Bodicker, Rob | | | 2098 | NED | 1.00 | 1 | 0.66 | 15 | 9.90 | | | Mostertman, Xander | | | 1865 | NED | 0.00 | 1 | -0.66 | 15 | -9.90 | | | Kampen, Bert | | | 1861 | NED | 0.00 | 1 | -0.67 | 15 | -10.05 | | | Arp, Frans | | | 2089 | NED | 0.00 | 1 | -0.36 | 15 | -5.40 | |
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) | | | | Corus Chess Tournament - Tien 3B | Wijk aan Zee | NED | 2010-01-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2023 | 1983 | 4.50 | 9 | 0.50 | 15 | 7.50 | |
| | Van Den Bergh, Ben | | | 2006 | NED | 1.00 | 1 | 0.53 | 15 | 7.95 | | | Koelemij, Sinclair | | | 2041 | NED | 0.50 | 1 | 0.08 | 15 | 1.20 | | | Kampen, Bert | | | 1873 | NED | 0.50 | 1 | -0.15 | 15 | -2.25 | | | Huijzer, Jacques | | | 2038 | NED | 0.50 | 1 | 0.08 | 15 | 1.20 | | | Oosterom, Erik | | | 2107 | NED | 0.50 | 1 | 0.17 | 15 | 2.55 | | | Wijgers, Ben | | | 1982 | NED | 0.50 | 1 | 0.00 | 15 | 0.00 | | | Brinkers, Kees | | | 1973 | NED | 0.00 | 1 | -0.51 | 15 | -7.65 | | | Poncin, Peter | | | 2087 | NED | 0.50 | 1 | 0.14 | 15 | 2.10 | | | Kroencke, Manfred | | | 2097 | GER | 0.50 | 1 | 0.16 | 15 | 2.40 | |
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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