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Individual Calculations December 2017 |
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| Ralphs, Nigel Total change: -13.40 | |   |
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| Welsh Chess Premier League 2017/18 Round 2 | Various | WLS | 2017-11-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1947 | 2031 | 0.00 | 1 | -0.62 | 20 | -12.40 | |
|  Waterfield, John W | | | 1947 | WLS | 0.00 | 1 | -0.62 | 20 | -12.40 | |
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) | | | | 2017/18 4NCL Division 3 South Rounds 1-2 | Reading | ENG | 2017-11-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2201 | 2031 | 0.50 | 2 | -0.05 | 20 | -1.00 | |
|  Hall, John | f | | 2180 | ENG | 0.50 | 1 | 0.20 | 20 | 4.00 | | | Britton, Richard L | f | | 2221 | ENG | 0.00 | 1 | -0.25 | 20 | -5.00 | |
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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