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Individual Calculations May 2017 |
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| Bullen, Alex Total change: -5.20 | |   |
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| Welsh Chess Premier League 2016/17 Round 4 | Merthyr | WLS | 2017-04-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2100 | 2105 | 1.00 | 1 | 0.49 | 20 | 9.80 | |
|  May, Frank | | | 2100 | WLS | 1.00 | 1 | 0.49 | 20 | 9.80 | |
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 Welsh Championships | Cardiff | WLS | 2017-04-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1962 | 2105 | 4.00 | 7 | -0.75 | 20 | -15.00 | |
| | Thomas, Ben | | | 1936 | WLS | 0.00 | 1 | -0.72 | 20 | -14.40 | |  Morcom, Huw | | | 1925 | WLS | 0.50 | 1 | -0.24 | 20 | -4.80 | | | Guha, Chirag | | | 1752 | WLS | 1.00 | 1 | 0.11 | 20 | 2.20 | | | Saunders, Walter N. R. | | | 2030 | WLS | 1.00 | 1 | 0.40 | 20 | 8.00 | | | Davis, Lee | | | 1933 | WLS | 0.50 | 1 | -0.23 | 20 | -4.60 | | | Sands, David A | | | 2103 | WLS | 0.50 | 1 | 0.00 | 20 | 0.00 | | | Ralphs, Nigel | | | 2058 | WLS | 0.50 | 1 | -0.07 | 20 | -1.40 | |
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) | | |
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