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Individual Calculations December 2017 |
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| Waterfield, John W Total change: -22.00 | |   |
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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 |
| 2031 | 1947 | 1.00 | 1 | 0.62 | 20 | 12.40 | |
|  Ralphs, Nigel | | | 2031 | WLS | 1.00 | 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 |
| 2164 | 1947 | 0.00 | 1 | -0.22 | 20 | -4.40 | |
|  Brozel, Sacha | | | 2164 | ENG | 0.00 | 1 | -0.22 | 20 | -4.40 | |
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) | | | | Bristol Winter Congress 2017 | Bristol | ENG | 2017-11-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1860 | 1947 | 1.50 | 5 | -1.50 | 20 | -30.00 | |
| | Musson, Adam J | | | 2030 | WLS | 0.00 | 1 | -0.39 | 20 | -7.80 | | | Anderson, Peter W | | | 1949 | ENG | 0.50 | 1 | 0.00 | 20 | 0.00 | | | Di-Vetta, Andrew | | | 1611 | WLS | 0.00 | 1 | -0.88 | 20 | -17.60 | | | Jukes, Sam | | | 1745 | WLS | 0.00 | 1 | -0.76 | 20 | -15.20 | | | Muller, Anton M | | | 1967 | ENG | 1.00 | 1 | 0.53 | 20 | 10.60 | |
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) | | |
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