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Individual Calculations September 2011 |
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| Van Osch, Mees Total change: 2.40 | |   |
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| Science Park Amsterdam Chess Tournament - B | Amsterdam | NED | 2011-07-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1952 | 2006 | 5.00 | 7 | 1.00 | 30 | 30.00 | |
|  Le Duigou, Goulven | | | 1825 | FRA | 1.00 | 1 | 0.26 | 30 | 7.80 | |  Oldenhuis, Lance | | | 1969 | NED | 0.50 | 1 | -0.05 | 30 | -1.50 | | | Nijenhuis, Wim | | | 2023 | NED | 1.00 | 1 | 0.52 | 30 | 15.60 | | | De Leur, Ben | | | 2013 | NED | 1.00 | 1 | 0.51 | 30 | 15.30 | | | Reinders, Joan | | | 1848 | NED | 1.00 | 1 | 0.29 | 30 | 8.70 | | | Cheung, Jan | | | 2024 | NED | 0.50 | 1 | 0.03 | 30 | 0.90 | | | Van Den Berg, Jeroen | | | 1962 | NED | 0.00 | 1 | -0.56 | 30 | -16.80 | |
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) | | | | Dutch Open - Reserve A | Dieren | NED | 2011-07-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1890 | 2006 | 3.00 | 6 | -0.95 | 30 | -28.50 | |
| | Hummel, Joop | | | 1951 | NED | 0.00 | 1 | -0.58 | 30 | -17.40 | | | Burer, Audry | | | 1928 | NED | 0.50 | 1 | -0.11 | 30 | -3.30 | | | Lentjes, Noud | | | 1875 | NED | 0.00 | 1 | -0.68 | 30 | -20.40 | | | Tulfer, Paul | | | 1859 | NED | 1.00 | 1 | 0.30 | 30 | 9.00 | | | Roelofs, Rik | | | 1880 | NED | 0.50 | 1 | -0.17 | 30 | -5.10 | | | Van Keeken, Roland | | | 1844 | NED | 1.00 | 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) | | | | Eurochess Tournament 2011, groep A | Borne | NED | 2011-08-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2078 | 2006 | 2.50 | 6 | 0.03 | 30 | 0.90 | |
| | Slagter, David | | | 2130 | NED | 0.50 | 1 | 0.17 | 30 | 5.10 | | | Van Foreest, Jorden | | | 2097 | NED | 0.00 | 1 | -0.38 | 30 | -11.40 | | | Mostertman, Xander | | | 1942 | NED | 0.50 | 1 | -0.09 | 30 | -2.70 | | | Bassant, Jesse | | | 1916 | NED | 1.00 | 1 | 0.38 | 30 | 11.40 | | | Pijpers, Arthur | | | 2296 | NED | 0.50 | 1 | 0.34 | 30 | 10.20 | | | Rauw, Gert Jan | | | 2089 | NED | 0.00 | 1 | -0.39 | 30 | -11.70 | |
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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