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Individual Calculations February 2015 |
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| Haigh, Tony Total change: -3.20 | |   |
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| 2015 South Wales New Year Open | Bridgend | WLS | 2015-01-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1820 | 1794 | 1.50 | 4 | -0.30 | 40 | -12.00 | |
|  Pleasants, Allan J | | | 2117 | WLS | 0.00 | 1 | -0.13 | 40 | -5.20 | |  Lutchman Singh, Karanvir | | | 1397 | WLS | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Bridges, Paul | | | 1863 | WLS | 0.50 | 1 | 0.10 | 40 | 4.00 | | | Woolcock, Craig | | | 1904 | WLS | 0.00 | 1 | -0.35 | 40 | -14.00 | |
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) | | | | Welsh Chess Premier League 2014/15 Rd4 | Various | WLS | 2015-01-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1962 | 1794 | 0.50 | 1 | 0.22 | 40 | 8.80 | |
| | Waterfield, John W | | | 1962 | WLS | 0.50 | 1 | 0.22 | 40 | 8.80 | |
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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