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Individual Calculations March 2018 |
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| Greatorex, Roger Total change: 11.00 | |   |
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| 47th Dyfed Open | Goodwick | WLS | 2018-02-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1942 | 1722 | 1.50 | 4 | 0.55 | 20 | 11.00 | |
|  May, Frank | | | 2096 | WLS | 0.00 | 1 | -0.10 | 20 | -2.00 | | | Jukes, Sam | | | 1762 | WLS | 0.50 | 1 | 0.06 | 20 | 1.20 | |  Miles, Richard | | | 1960 | WLS | 0.50 | 1 | 0.30 | 20 | 6.00 | | | May, Adam J | | | 1951 | WLS | 0.50 | 1 | 0.29 | 20 | 5.80 | |
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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