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Individual Calculations April 2009 |
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| Boulahfa, Hicham Total change: 34.05 | |   |
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| Schaakfestival Groningen - Groep B | Groningen | NED | 2008-12-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1938 | 2000 | 1.00 | 2 | -0.17 | 15 | -2.55 | |
|  Karsdorp, Nico | | | 1907 | NED | 1.00 | 1 | 0.37 | 15 | 5.55 | | | Hummel, Paul | | | 1969 | NED | 0.00 | 1 | -0.54 | 15 | -8.10 | |
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) | | | | 3E - Corus Chess Tournament - Tienkampen | Wijk aan Zee | NED | 2009-01-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2032 | 1992 | 6.00 | 8 | 2.44 | 15 | 36.60 | |
|  Morice, Ludovic | | | 2056 | FRA | 0.50 | 1 | 0.09 | 15 | 1.35 | | | Van Der Beek, Ruud | | | 1988 | NED | 1.00 | 1 | 0.49 | 15 | 7.35 | | | De Haas, Maarten | | | 1996 | NED | 0.50 | 1 | 0.01 | 15 | 0.15 | | | De Rooi, Paul | | | 2059 | NED | 0.50 | 1 | 0.09 | 15 | 1.35 | | | Beukema, Henk Jan | | | 2028 | NED | 1.00 | 1 | 0.55 | 15 | 8.25 | | | Huijzer, Jacques | | | 2041 | NED | 1.00 | 1 | 0.57 | 15 | 8.55 | | | Breedveld, Andre | | | 2101 | NED | 1.00 | 1 | 0.65 | 15 | 9.75 | | | Van De Hooven, Evert | | | 1984 | NED | 0.50 | 1 | -0.01 | 15 | -0.15 | |
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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