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Individual Calculations February 2018 |
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| Robinson, David Total change: -6.40 | |   |
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| South Wales New Year Open 2018 | Bridgend | WLS | 2018-01-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1862 | 1925 | 2.00 | 4 | -0.32 | 20 | -6.40 | |
|  Blackburn, Jonathan L B | | | 2194 | WLS | 0.00 | 1 | -0.17 | 20 | -3.40 | | | Timmins, Chris P | | | 1822 | ENG | 0.00 | 1 | -0.64 | 20 | -12.80 | |  Haigh, Tony | | | 1816 | WLS | 1.00 | 1 | 0.35 | 20 | 7.00 | | | Probert, Malcolm | | | 1614 | WLS | 1.00 | 1 | 0.14 | 20 | 2.80 | |
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) | | |
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