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Individual Calculations November 2011 |
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| Bottema, Tom Total change: -12.45 | |   |
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| BDO Chess Tournament Challenger | Haarlem | NED | 2011-08-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2316 | 2247 | 3.50 | 9 | -0.17 | 15 | -2.55 | |
|  Poobalasingam, Peter S | f | | 2299 | ENG | 1.00 | 1 | 0.57 | 15 | 8.55 | |  Gijswijt, Bart | f | | 2341 | NED | 1.00 | 1 | 0.63 | 15 | 9.45 | | | Slingerland, Fred | m | | 2390 | NED | 0.00 | 1 | -0.31 | 15 | -4.65 | | | Peelen, Piet | m | | 2354 | NED | 0.00 | 1 | -0.35 | 15 | -5.25 | | | Jackson, James P | | | 2157 | ENG | 1.00 | 1 | 0.38 | 15 | 5.70 | | | Brown, Andrew | m | | 2202 | AUS | 0.00 | 1 | -0.56 | 15 | -8.40 | | | Arnaudov, G. Petar | m | | 2438 | BUL | 0.00 | 1 | -0.25 | 15 | -3.75 | | | De Wit, Tex | f | | 2293 | NED | 0.50 | 1 | 0.06 | 15 | 0.90 | | | Klein, David | f | | 2366 | NED | 0.00 | 1 | -0.34 | 15 | -5.10 | |
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 - 1A - Round 1 | Various | NED | 2011-09-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2112 | 2231 | 0.00 | 1 | -0.66 | 15 | -9.90 | |
| | Kollen, Zyon | | | 2112 | NED | 0.00 | 1 | -0.66 | 15 | -9.90 | |
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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