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Individual Calculations March 2019 |
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| Greatorex, Roger Total change: 15.60 | |   |
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| 48th Dyfed Open | Fishguard | WLS | 2019-02-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1945 | 1713 | 2.00 | 5 | 0.78 | 20 | 15.60 | |
|  Waddington, Mike P | f | | 2074 | ENG | 1.00 | 1 | 0.90 | 20 | 18.00 | |  Richmond, Jane | | wf | 2066 | WLS | 0.00 | 1 | -0.11 | 20 | -2.20 | | | May, Frank | | | 2069 | WLS | 0.50 | 1 | 0.39 | 20 | 7.80 | | | Waterfield, John W | | | 1935 | WLS | 0.00 | 1 | -0.22 | 20 | -4.40 | | | Watkins, Peter | | | 1581 | WLS | 0.50 | 1 | -0.18 | 20 | -3.60 | |
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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