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Individual Calculations July 2010 |
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| Martyn, Rafe Total change: -5.25 | |   |
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| Four Nations Chess League (4NCL) | Various | ENG | 2009-10-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2193 | 2290 | 0.00 | 1 | -0.63 | 15 | -9.45 | |
|  Pitcher, John | | | 2193 | ENG | 0.00 | 1 | -0.63 | 15 | -9.45 | |
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) | | | | Surrey Congress - Open | Cheam | ENG | 2010-04-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2194 | 2290 | 4.00 | 6 | 0.28 | 15 | 4.20 | |
|  Punnett, Alan K | | | 2094 | ENG | 0.50 | 1 | -0.25 | 15 | -3.75 | | | Compton, Alistair | | | 2061 | NZL | 1.00 | 1 | 0.21 | 15 | 3.15 | | | Mayhew, Andrew | | | 2065 | ENG | 1.00 | 1 | 0.22 | 15 | 3.30 | | | Buckley, Graeme N | m | | 2390 | ENG | 1.00 | 1 | 0.64 | 15 | 9.60 | | | Roberson, Peter T | | | 2256 | ENG | 0.00 | 1 | -0.55 | 15 | -8.25 | | | Lalic, Susan K | m | wg | 2298 | ENG | 0.50 | 1 | 0.01 | 15 | 0.15 | |
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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