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Individual Calculations March 2015 |
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| Bridges, Paul Total change: -2.60 | |   |
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| 2015 Welsh Winter Open | Penarth | WLS | 2015-01-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1919 | 1863 | 1.00 | 3 | -0.29 | 20 | -5.80 | |
|  Braun, Walter | f | | 2186 | AUT | 0.00 | 1 | -0.13 | 20 | -2.60 | |  Whitehead, Mark A | | | 1985 | ENG | 0.00 | 1 | -0.33 | 20 | -6.60 | | | Di-Vetta, Andrew | | | 1585 | WLS | 1.00 | 1 | 0.17 | 20 | 3.40 | |
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) | | | | 44th Dyfed Chess Congress | Goodwick | WLS | 2015-02-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1935 | 1860 | 1.00 | 2 | 0.16 | 20 | 3.20 | |
| | May, Frank | | | 2141 | WLS | 0.00 | 1 | -0.16 | 20 | -3.20 | | | Van Kemenade, Julie | | | 1729 | WLS | 1.00 | 1 | 0.32 | 20 | 6.40 | |
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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