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Individual Calculations February 2020 |
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| Jayaweera, Vihini Sahansa Total change: 23.20 | |   |
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| Sri Lanka National Youth Chess Championship 2019 - Under 13 years Girls | Colombo | SRI | 2019-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1311 | 1098 | 1.50 | 4 | 0.58 | 40 | 23.20 | |
|  Siyambalapitiya, S V D S | | | 1242 | SRI | 0.50 | 1 | 0.19 | 40 | 7.60 | |  Marasinghe, Chanethma Devangi | | | 1344 | SRI | 1.00 | 1 | 0.81 | 40 | 32.40 | | | Wilvalaarachchi, Oneli Omaya | | | 1340 | SRI | 0.00 | 1 | -0.20 | 40 | -8.00 | | | Rathnayake, R M Dinithi Panchali | | wc | 1316 | SRI | 0.00 | 1 | -0.22 | 40 | -8.80 | |
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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