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Individual Calculations May 2011 |
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| Costa, Serge Total change: 17.25 | |   |
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| Nationale Interclubs 2010-2011 | Various | BEL | 2010-09-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2145 | 1953 | 2.50 | 5 | 1.15 | 15 | 17.25 | |
|  Lehaen, Frank | | | 1966 | BEL | 1.00 | 1 | 0.52 | 15 | 7.80 | | | Hawia, Thierry | | | 2044 | BEL | 1.00 | 1 | 0.62 | 15 | 9.30 | | | Zatonskih, V. | f | | 2277 | UKR | 0.50 | 1 | 0.37 | 15 | 5.55 | | | Cappon, John | | | 2242 | FRA | 0.00 | 1 | -0.16 | 15 | -2.40 | |  Bertrem, Stijn | | | 2195 | BEL | 0.00 | 1 | -0.20 | 15 | -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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