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Individual Calculations January 2019 |
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| Welangalla, Nenitha Total change: 9.20 | |   |
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| Kolonnawa Chess Classic 2018 | Colombo | SRI | 2018-12-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1355 | 1245 | 2.50 | 6 | 0.23 | 40 | 9.20 | |
|  Gamage, Ovin Vidmal | | | 1547 | SRI | 0.00 | 1 | -0.15 | 40 | -6.00 | | | Charith, Dilshan | | | 1598 | SRI | 0.50 | 1 | 0.39 | 40 | 15.60 | | | Ponnamperuma, Weraka Vasath | | | 1390 | SRI | 0.00 | 1 | -0.31 | 40 | -12.40 | |  Liyanage, K G | | | 1063 | SRI | 1.00 | 1 | 0.26 | 40 | 10.40 | | | Nethsara, W M Daham | | | 1496 | SRI | 0.00 | 1 | -0.19 | 40 | -7.60 | | | Munasinghe, Luvin Amantha | | | 1038 | SRI | 1.00 | 1 | 0.23 | 40 | 9.20 | |
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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