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Individual Calculations July 2009 |
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| James, David J Total change: -19.65 | |   |
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| 4NCL part 3 | Various | ENG | 2008-10-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2195 | 2137 | 1.50 | 5 | -0.61 | 15 | -9.15 | |
|  Povah, Nigel E | m | | 2311 | ENG | 0.00 | 1 | -0.27 | 15 | -4.05 | | | Jaunooby, Ali Reza | | | 2145 | ENG | 0.00 | 1 | -0.49 | 15 | -7.35 | | | Curtis, John E | | | 2122 | ENG | 1.00 | 1 | 0.48 | 15 | 7.20 | |  Ynojosa, Felix Jose | | | 2144 | ENG | 0.50 | 1 | 0.01 | 15 | 0.15 | | | Ledger, Dave J | f | | 2254 | ENG | 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) | | | | Welsh Championship | Cardiff | WLS | 2009-04-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1997 | 2130 | 2.00 | 4 | -0.70 | 15 | -10.50 | |
| | Roberts, David L | | | 2107 | ENG | 0.50 | 1 | -0.03 | 15 | -0.45 | | | Turner, Joseph David | | | 1983 | WLS | 0.00 | 1 | -0.70 | 15 | -10.50 | | | Blackburn, Suzie G. | | wf | 1889 | WLS | 0.50 | 1 | -0.30 | 15 | -4.50 | | | Van Kemenade, Rudy | | | 2007 | WLS | 1.00 | 1 | 0.33 | 15 | 4.95 | |
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) | | |
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