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Individual Calculations April 2009 |
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| Van Zetten, Maarten Total change: 8.75 | |   |
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| 2C - r 4-5 - Dutch Team Competition | Various | NED | 2008-09-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2052 | 1923 | 0.50 | 2 | -0.17 | 25 | -4.25 | |
|  Van `t Hof, Eric | c | | 2141 | NED | 0.00 | 1 | -0.22 | 25 | -5.50 | |  Rademakers, Maarten | | | 1962 | NED | 0.50 | 1 | 0.05 | 25 | 1.25 | |
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) | | | | Schaakfestival Groningen - Compact A | Groningen | NED | 2008-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2117 | 1976 | 1.00 | 4 | -0.24 | 25 | -6.00 | |
| | Van `t Hof, Eric | c | | 2141 | NED | 1.00 | 1 | 0.72 | 25 | 18.00 | | | Schipper, Rijk | | | 2141 | NED | 0.00 | 1 | -0.28 | 25 | -7.00 | | | Groenewold, Jan Joris | | | 2106 | NED | 0.00 | 1 | -0.32 | 25 | -8.00 | | | Arp, Frans | | | 2080 | NED | 0.00 | 1 | -0.36 | 25 | -9.00 | |
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) | | | | 2.Pfalz Open | Neustadt a.d. Weinstrasse | GER | 2009-02-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2060 | 1975 | 3.50 | 7 | 0.76 | 25 | 19.00 | |
| | Posedaru, Bogdan | | | 2188 | ROU | 0.00 | 1 | -0.23 | 25 | -5.75 | | | Stahl, Heinz | | | 1748 | GER | 1.00 | 1 | 0.21 | 25 | 5.25 | | | Weisenburger, Horst | | | 2149 | GER | 0.00 | 1 | -0.27 | 25 | -6.75 | | | Novak, Josua | | | 1829 | GER | 1.00 | 1 | 0.30 | 25 | 7.50 | | | Ludy, Klaus | | | 2146 | GER | 0.50 | 1 | 0.23 | 25 | 5.75 | | | Feiler, Juergen | | | 2130 | GER | 1.00 | 1 | 0.71 | 25 | 17.75 | | | Vogel, Jaap | f | | 2230 | NED | 0.00 | 1 | -0.19 | 25 | -4.75 | |
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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