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Individual Calculations January 2019 |
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| Jayawardana, Lesath Thewnija Total change: 8.80 | |   |
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| Kolonnawa Chess Classic 2018 | Colombo | SRI | 2018-12-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1311 | 1054 | 1.00 | 4 | 0.22 | 40 | 8.80 | |
|  Jayaweera Gamage, Disindu Hansad | | | 1443 | SRI | 1.00 | 1 | 0.91 | 40 | 36.40 | |  Peiris, K Bimsara | | | 1254 | SRI | 0.00 | 1 | -0.24 | 40 | -9.60 | | | Perera, Isara Ranmeth | | | 1229 | SRI | 0.00 | 1 | -0.27 | 40 | -10.80 | | | Sarathchandra, Gihansa M | | | 1319 | SRI | 0.00 | 1 | -0.18 | 40 | -7.20 | |
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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