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Individual Calculations January 2012 |
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| Waterfield, John W Total change: 28.80 | |   |
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| Welsh Chess Premier League Round 1-3 | Various | WLS | 2011-10-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1968 | 2008 | 1.00 | 1 | 0.44 | 15 | 6.60 | |
|  Thomas, Mark | | | 1968 | WLS | 1.00 | 1 | 0.44 | 15 | 6.60 | |
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) | | | | e2e4 English Senior Championship | Gatwick | ENG | 2011-10-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2157 | 2008 | 3.00 | 5 | 1.48 | 15 | 22.20 | |
| | Byway, Paul V | f | | 2172 | ENG | 1.00 | 1 | 0.72 | 15 | 10.80 | |  Reuben, Stewart | c | | 2137 | ENG | 1.00 | 1 | 0.67 | 15 | 10.05 | | | Prizant, Michael | | | 2136 | ENG | 0.50 | 1 | 0.17 | 15 | 2.55 | | | Yeo, Michael J | | | 2152 | ENG | 0.50 | 1 | 0.19 | 15 | 2.85 | | | Jackson, Oliver A | | | 2186 | ENG | 0.00 | 1 | -0.27 | 15 | -4.05 | |
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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