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Individual Calculations August 2015 |
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| Van Den Berg, Jaap Total change: 2.20 | |   |
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| 9e Leiden Chess Tournament, Group B | Leiden | NED | 2015-07-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1861 | 1848 | 3.00 | 6 | 0.11 | 20 | 2.20 | |
|  Hordijk, Frank | | | 1795 | NED | 1.00 | 1 | 0.43 | 20 | 8.60 | |  Kohlbeck, Ton | | | 2008 | NED | 0.00 | 1 | -0.29 | 20 | -5.80 | | | Jacobsen, Trond | | | 1680 | NOR | 0.50 | 1 | -0.22 | 20 | -4.40 | | | Koelmans, Jan Willem | | | 1935 | NED | 0.50 | 1 | 0.12 | 20 | 2.40 | | | Van Der Maat, Niek | | | 1921 | NED | 0.00 | 1 | -0.40 | 20 | -8.00 | | | Bojanowski, Roman | | | 1829 | NED | 1.00 | 1 | 0.47 | 20 | 9.40 | |
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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