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Individual Calculations February 2018 |
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| Sugathadasa, Vihara Vidwanthi Total change: 19.20 | |   |
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| Sri Lanka National Youth Chess Championship 2017 and 2018 Under - 13 years Girls | Colombo | SRI | 2017-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1301 | 1096 | 1.50 | 4 | 0.48 | 40 | 19.20 | |
|  Dassanayake, Tharusha Samadhi | | | 1280 | SRI | 0.00 | 1 | -0.26 | 40 | -10.40 | | | Dahampriya, H K T Dewnethmie | | | 1480 | SRI | 0.00 | 1 | -0.09 | 40 | -3.60 | | | Seneka, M W Thenumi | | | 1275 | SRI | 1.00 | 1 | 0.73 | 40 | 29.20 | |  Rathnayake, Maheesha Pabodhini | | | 1170 | SRI | 0.50 | 1 | 0.10 | 40 | 4.00 | |
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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