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Individual Calculations June 2013 |
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| Perrett, David C Total change: 5.40 | |   |
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| 4NCL 2012-13 | Various | ENG | 2012-11-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1997 | 1969 | 3.00 | 5 | 0.69 | 15 | 10.35 | |
|  Feavyour, John A | | | 2071 | ENG | 0.00 | 1 | -0.36 | 15 | -5.40 | |  Soon, Wai Cheong | | | 2111 | MAS | 0.00 | 1 | -0.31 | 15 | -4.65 | | | Cooke, Charlie | | | 1789 | ENG | 1.00 | 1 | 0.26 | 15 | 3.90 | | | Staniforth, Matthew | | | 1999 | WLS | 1.00 | 1 | 0.54 | 15 | 8.10 | | | Burke, Steven J | | | 2014 | ENG | 1.00 | 1 | 0.56 | 15 | 8.40 | |
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 6-7 | various | WLS | 2013-04-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2098 | 1972 | 0.00 | 1 | -0.33 | 15 | -4.95 | |
| | Spice, Alan | | | 2098 | WLS | 0.00 | 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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