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Individual Calculations March 2011 |
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| Hummel, Joop Total change: 25.35 | |   |
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| Schaakfestival Groningen 2010 Open B | Groningen | NED | 2010-12-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1899 | 1972 | 3.50 | 7 | -0.69 | 15 | -10.35 | |
|  Pompstra, Henk | | | 1824 | NED | 0.50 | 1 | -0.20 | 15 | -3.00 | |  Huizinga, Egbert | | | 1809 | NED | 0.50 | 1 | -0.22 | 15 | -3.30 | | | Grashuis, Aldert-Jan | | | 1932 | NED | 0.50 | 1 | -0.06 | 15 | -0.90 | | | Posch, Jan | | | 1819 | NED | 1.00 | 1 | 0.30 | 15 | 4.50 | | | Klinkhammer, Johan | | | 2035 | NED | 1.00 | 1 | 0.59 | 15 | 8.85 | | | Thoma, Sophia | | | 1926 | NED | 0.00 | 1 | -0.56 | 15 | -8.40 | | | Wubs, Harry | | | 1945 | NED | 0.00 | 1 | -0.54 | 15 | -8.10 | |
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 Team Competition - 3A - round 5-6 2011 | Various | NED | 2011-01-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1982 | 1961 | 1.00 | 1 | 0.53 | 15 | 7.95 | |
| | Van Der Giessen, Ada | | | 1982 | NED | 1.00 | 1 | 0.53 | 15 | 7.95 | |
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) | | | | Tata Steel Chess Tournament - Tien 3C | Wijk aan Zee | NED | 2011-01-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1989 | 1961 | 6.00 | 9 | 1.85 | 15 | 27.75 | |
| | De Mooij, Marco | | | 1934 | NED | 0.50 | 1 | -0.04 | 15 | -0.60 | | | Semmler, Guenter | | | 1962 | GER | 0.50 | 1 | 0.00 | 15 | 0.00 | | | Volkers, Annemarie | | | 2042 | NED | 1.00 | 1 | 0.61 | 15 | 9.15 | | | Veldhuysen, Klaas | | | 2009 | NED | 1.00 | 1 | 0.57 | 15 | 8.55 | | | Voss, Herman | | | 2025 | NED | 1.00 | 1 | 0.59 | 15 | 8.85 | | | Overweg, Danny | | | 1966 | NED | 0.50 | 1 | 0.01 | 15 | 0.15 | | | Sielicki, Tomasz | | | 2036 | POL | 0.00 | 1 | -0.40 | 15 | -6.00 | | | Van Der Maat, Niek | | | 1983 | NED | 0.50 | 1 | 0.03 | 15 | 0.45 | | | Buitink, Bert | | | 1947 | NED | 1.00 | 1 | 0.48 | 15 | 7.20 | |
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) | | |
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