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Individual Calculations September 2009 |
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| Niewenhuis, Ruud Total change: -47.50 | |   |
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| 3e Leiden Chess Tournament | Leiden | NED | 2009-07-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2010 | 1913 | 0.50 | 5 | -1.35 | 25 | -33.75 | |
|  Meenu, Rajendran | | | 2003 | IND | 0.00 | 1 | -0.38 | 25 | -9.50 | |  Van Der Maat, Niek | | | 1980 | NED | 0.00 | 1 | -0.41 | 25 | -10.25 | | | Van Straaten, Marco | | | 2094 | NED | 0.00 | 1 | -0.26 | 25 | -6.50 | | | Bakker, Joop | | | 2022 | NED | 0.50 | 1 | 0.15 | 25 | 3.75 | | | Koes, Richard | | | 1950 | NED | 0.00 | 1 | -0.45 | 25 | -11.25 | |
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) | | | | Hogeschool Zeeland Chess Tournament 2009 | Vlissingen | NED | 2009-08-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2076 | 1913 | 1.00 | 5 | -0.55 | 25 | -13.75 | |
| | Bosboom, Manuel | m | | 2313 * | NED | 0.00 | 1 | -0.08 | 25 | -2.00 | | | Rosmuller, Anton | | | 2112 | NED | 0.00 | 1 | -0.24 | 25 | -6.00 | | | Beekhuizen, Bas | | | 1728 | NED | 1.00 | 1 | 0.26 | 25 | 6.50 | | | Van Der Zalm, Marnix | | | 2074 | NED | 0.00 | 1 | -0.29 | 25 | -7.25 | | | Haak, Eelco | | | 2154 | NED | 0.00 | 1 | -0.20 | 25 | -5.00 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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