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Individual Calculations March 2013 |
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| Ralphs, Nigel Total change: -7.95 | |   |
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| South Wales all play all Section C | Cardiff | WLS | 2013-02-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1790 | 1925 | 3.50 | 6 | -0.46 | 15 | -6.90 | |
|  Bridges, Paul | | | 1859 | WLS | 0.50 | 1 | -0.09 | 15 | -1.35 | |  Staniforth, Matthew | | | 1972 | WLS | 1.00 | 1 | 0.57 | 15 | 8.55 | | | Du Toit, Stephanie | | | 1549 | WLS | 0.50 | 1 | -0.41 | 15 | -6.15 | | | Thomas, Ben | | | 1690 | WLS | 0.50 | 1 | -0.29 | 15 | -4.35 | | | Woolcock, Craig | | | 1852 | WLS | 0.50 | 1 | -0.10 | 15 | -1.50 | | | Buttell, David | | | 1820 | WLS | 0.50 | 1 | -0.14 | 15 | -2.10 | |
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 Chess Premier League Round 4 | various | WLS | 2013-02-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1875 | 1925 | 0.50 | 1 | -0.07 | 15 | -1.05 | |
| | Gibbons, Andrew | | | 1875 | WLS | 0.50 | 1 | -0.07 | 15 | -1.05 | |
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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