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Individual Calculations May 2011 |
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| Jones, Richard S. Total change: -6.30 | |   |
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| Welsh Chess Premier League | Various | WLS | 2010-11-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2275 | 2361 | 2.00 | 2 | 0.77 | 15 | 11.55 | |
|  Kett, Tim | | | 2202 | WLS | 1.00 | 1 | 0.29 | 15 | 4.35 | | | Williams, A. Howard | f | | 2347 | WLS | 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) | | | | The 57th Welsh Chess Championships | Cardiff | WLS | 2011-04-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2105 | 2369 | 4.50 | 7 | -1.19 | 15 | -17.85 | |
|  Young, Alan | | | 2024 | WLS | 0.50 | 1 | -0.39 | 15 | -5.85 | | | Davis, Lee | | | 1974 | WLS | 1.00 | 1 | 0.08 | 15 | 1.20 | | | Brown, Thomas | | | 2070 | WLS | 1.00 | 1 | 0.15 | 15 | 2.25 | | | Zeidler, Sven P. | f | | 2247 | WLS | 0.50 | 1 | -0.17 | 15 | -2.55 | | | Jameson, David | | | 2088 | WLS | 0.50 | 1 | -0.34 | 15 | -5.10 | | | Kett, Tim | | | 2202 | WLS | 0.00 | 1 | -0.72 | 15 | -10.80 | | | Morris, Gareth | | | 2131 | WLS | 1.00 | 1 | 0.20 | 15 | 3.00 | |
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) | | |
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