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Individual Calculations July 2009 |
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| Williamson, Kevin J Total change: 19.80 | |   |
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| 4NCL part 3 | Various | ENG | 2008-10-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1990 | 2026 | 2.50 | 3 | 0.90 | 15 | 13.50 | |
|  Mercs, Peter J | | | 2091 | ENG | 1.00 | 1 | 0.59 | 15 | 8.85 | | | Sathiraju, Vijay | | | 1754 | ENG | 1.00 | 1 | 0.17 | 15 | 2.55 | |  Bonafont, Philip R | | | 2126 | ENG | 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) | | | | Southend Open | Southend | ENG | 2009-04-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2162 | 2025 | 2.00 | 5 | 0.42 | 15 | 6.30 | |
| | Lock, Gavin R | | | 2212 | ENG | 0.00 | 1 | -0.26 | 15 | -3.90 | | | Whitehead, David J | | | 2128 | ENG | 0.50 | 1 | 0.14 | 15 | 2.10 | | | Gregory, Stephen J | | | 2163 | ENG | 1.00 | 1 | 0.69 | 15 | 10.35 | | | Karayiannis, Costas | | | 2166 | ENG | 0.50 | 1 | 0.19 | 15 | 2.85 | | | Haydon, David L | | | 2142 | ENG | 0.00 | 1 | -0.34 | 15 | -5.10 | |
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) | | |
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