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Individual Calculations March 2017 |
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| Jones, Iolo C Total change: 17.20 | |   |
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| 46th Dyfed Open 2017 | Fishguard | WLS | 2017-02-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2054 | 2181 | 3.50 | 4 | 0.86 | 20 | 17.20 | |
|  Ehsandar, Peter | | | 1928 | WLS | 1.00 | 1 | 0.19 | 20 | 3.80 | |  Spencer, Douglas | | | 1962 | WLS | 1.00 | 1 | 0.22 | 20 | 4.40 | | | Strugnell, Carl | f | | 2255 | WLS | 1.00 | 1 | 0.60 | 20 | 12.00 | | | Heap, Gerry | | | 2072 | WLS | 0.50 | 1 | -0.15 | 20 | -3.00 | |
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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