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Individual Calculations February 2018 |
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| Van Kemenade, Rudy Total change: 12.20 | |   |
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| South Wales New Year Open 2018 | Bridgend | WLS | 2018-01-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2031 | 1969 | 2.00 | 4 | 0.30 | 20 | 6.00 | |
|  Blackburn, Jonathan L B | | | 2194 | WLS | 0.00 | 1 | -0.22 | 20 | -4.40 | |  Howells, Chris | | | 1860 | WLS | 1.00 | 1 | 0.35 | 20 | 7.00 | | | Morcom, Huw | | | 1930 | WLS | 1.00 | 1 | 0.45 | 20 | 9.00 | | | Pleasants, Allan J | | | 2139 | WLS | 0.00 | 1 | -0.28 | 20 | -5.60 | |
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) | | | | Welsh Chess Premier League 2017/18 Round 3 | Neath | WLS | 2018-01-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1828 | 1969 | 1.00 | 1 | 0.31 | 20 | 6.20 | |
| | Llewellyn, David | | | 1828 | WLS | 1.00 | 1 | 0.31 | 20 | 6.20 | |
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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