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Individual Calculations May 2019 |
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| Waterfield, John W Total change: 11.40 | |   |
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| 2019 World Senior Team Chess Championships open 65plus | Rhodes | GRE | 2019-04-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2019 | 1928 | 3.50 | 7 | 0.80 | 20 | 16.00 | |
|  Hammar, Bengt | f | | 2206 | SWE | 0.00 | 1 | -0.17 | 20 | -3.40 | |  Murray, Jim G. | | | 1845 | IRL | 1.00 | 1 | 0.39 | 20 | 7.80 | | | Van De Wynkele, Herman | | | 2129 | BEL | 1.00 | 1 | 0.76 | 20 | 15.20 | | | Bhend, Edwin | m | | 2120 | SUI | 0.50 | 1 | 0.25 | 20 | 5.00 | | | Bhopal, Raj | | | 1900 | SCO | 0.50 | 1 | -0.04 | 20 | -0.80 | | | Gustavsson, Sture | | | 1976 | SWE | 0.50 | 1 | 0.07 | 20 | 1.40 | | | Valentine, Brian J | | | 1954 | ENG | 0.00 | 1 | -0.46 | 20 | -9.20 | |
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) | | | | Welsh Chess Premier League 2018/2019 Round 5 | Neath | WLS | 2019-04-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1756 | 1928 | 0.50 | 1 | -0.23 | 20 | -4.60 | |
| | Haigh, Tony | | | 1756 | WLS | 0.50 | 1 | -0.23 | 20 | -4.60 | |
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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