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Individual Calculations March 2010 |
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| Hiemstra, Jan Total change: 12.15 | |   |
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| Schaakfestival Groningen 2009 Mini A | Groningen | NED | 2009-12-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1978 | 2019 | 2.50 | 4 | 0.27 | 15 | 4.05 | |
|  Wiggerman, Jan | | | 1901 | NED | 0.50 | 1 | -0.16 | 15 | -2.40 | |  Tilstra, Arjen | | | 2095 | NED | 0.50 | 1 | 0.10 | 15 | 1.50 | | | Bosveld, Henk | | | 2005 | NED | 0.50 | 1 | -0.02 | 15 | -0.30 | | | Kesteren Van, Stef | | | 1909 | NED | 1.00 | 1 | 0.35 | 15 | 5.25 | |
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 - Dag 3B | Wijk aan Zee | NED | 2010-01-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2037 | 2028 | 2.00 | 3 | 0.54 | 15 | 8.10 | |
| | Noordkamp, Wouter | | | 1991 | NED | 1.00 | 1 | 0.45 | 15 | 6.75 | | | Landsbergen, Ron | | | 2038 | NED | 1.00 | 1 | 0.51 | 15 | 7.65 | | | Sturm, Pieter | | | 2083 | NED | 0.00 | 1 | -0.42 | 15 | -6.30 | |
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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