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Individual Calculations January 2009 |
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| Groenewold, Jan Joris Total change: 1.50 | |   |
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| 2A - r 1-3 - Dutch Team Competition | Various | NED | 2008-09-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2216 | 2091 | 1.00 | 2 | 0.33 | 15 | 4.95 | |
|  Rooda, Kai | | | 2141 | NED | 1.00 | 1 | 0.57 | 15 | 8.55 | |  Wempe, Joost | | | 2291 | NED | 0.00 | 1 | -0.24 | 15 | -3.60 | |
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) | | | | Essent Open | Hoogeveen | NED | 2008-10-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2285 | 2106 | 2.00 | 8 | -0.23 | 15 | -3.45 | |
| | Vedder, Henk | | | 2357 | NED | 0.00 | 1 | -0.19 | 15 | -2.85 | | | Clemens, Adrian | f | | 2261 | NED | 1.00 | 1 | 0.71 | 15 | 10.65 | | | Prasanna, Rao | f | | 2310 | IND | 1.00 | 1 | 0.76 | 15 | 11.40 | | | Pruijssers, Roeland | m | | 2456 | NED | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Kuipers, Stefan | f | | 2292 | NED | 0.00 | 1 | -0.26 | 15 | -3.90 | | | Humphrey, Jonathan | f | | 2330 | AUS | 0.00 | 1 | -0.22 | 15 | -3.30 | | | Jellema, Yme Jan | | | 2130 | NED | 0.00 | 1 | -0.47 | 15 | -7.05 | | | Tate, Alan | | | 2144 | SCO | 0.00 | 1 | -0.45 | 15 | -6.75 | |
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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