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Individual Calculations June 2013 |
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| Sully, David J Total change: 17.85 | |   |
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| 4NCL 2012-13 | Various | ENG | 2012-11-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2082 | 2105 | 2.00 | 3 | 0.41 | 15 | 6.15 | |
|  White, Mark W | | | 2100 | ENG | 1.00 | 1 | 0.49 | 15 | 7.35 | |  Fallowfield, Jeremy R | | | 2023 | ENG | 0.50 | 1 | -0.11 | 15 | -1.65 | | | Mercs, Peter J | | | 2123 | ENG | 0.50 | 1 | 0.03 | 15 | 0.45 | |
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) | | | | Welsh Chess Premier League Round 6-7 | various | WLS | 2013-04-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2344 | 2100 | 0.50 | 1 | 0.30 | 15 | 4.50 | |
| | Williams, A. Howard | f | | 2344 | WLS | 0.50 | 1 | 0.30 | 15 | 4.50 | |
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 3 | Various | WLS | 2013-05-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2084 | 2100 | 1.00 | 1 | 0.48 | 15 | 7.20 | |
| | Gilbert, Jonathan A. | | | 2084 | WLS | 1.00 | 1 | 0.48 | 15 | 7.20 | |
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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