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Individual Calculations March 2015 |
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| James, Dai Total change: -15.20 | |   |
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| 2015 Welsh Winter Open | Penarth | WLS | 2015-01-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1999 | 1950 | 1.00 | 4 | -0.76 | 20 | -15.20 | |
|  Braun, Walter | f | | 2186 | AUT | 0.00 | 1 | -0.20 | 20 | -4.00 | |  Lewis, David Rhys | | | 1933 | WLS | 1.00 | 1 | 0.48 | 20 | 9.60 | | | Tomboline, David | | | 1959 | ENG | 0.00 | 1 | -0.49 | 20 | -9.80 | | | Ralphs, Nigel | | | 1917 | WLS | 0.00 | 1 | -0.55 | 20 | -11.00 | |
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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