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Individual Calculations September 2011 |
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| Vonk, Jan Total change: 21.30 | |   |
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| 5e Leiden Chess Tournament - group B | Leiden | NED | 2011-07-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1868 | 1751 | 0.00 | 1 | -0.34 | 30 | -10.20 | |
|  Broos, Simon | | | 1868 | NED | 0.00 | 1 | -0.34 | 30 | -10.20 | |
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) | | | | 15e Hogeschool Zeeland Toernooi | Vlissingen | NED | 2011-07-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1956 | 1751 | 3.00 | 8 | 1.05 | 30 | 31.50 | |
| | Porte, Henrik | | | 2119 | NED | 0.00 | 1 | -0.10 | 30 | -3.00 | |  Westerman, Henk | | | 1925 | NED | 1.00 | 1 | 0.73 | 30 | 21.90 | | | Onrust, Benny | | | 1957 | NED | 0.00 | 1 | -0.24 | 30 | -7.20 | | | Bernshtein, Tomer | | | 1919 | ISR | 1.00 | 1 | 0.72 | 30 | 21.60 | | | Plug, Arjan | | | 1943 | NED | 0.00 | 1 | -0.25 | 30 | -7.50 | | | Van De Griend, Johan | | | 1912 | NED | 0.00 | 1 | -0.29 | 30 | -8.70 | | | Koes, Richard | | | 1966 | NED | 1.00 | 1 | 0.77 | 30 | 23.10 | | | Vermue, Albert | | | 1905 | NED | 0.00 | 1 | -0.29 | 30 | -8.70 | |
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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