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Individual Calculations September 2015 |
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| Nanayakkara, K G Rishitha Shenal Total change: -20.40 | |   |
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| Sri Lanka Open Chess Championship 2015 | Colombo | SRI | 2015-08-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1313 | 1119 | 0.50 | 4 | -0.51 | 40 | -20.40 | |
|  Bandara, R M Nisakya | | | 1397 | SRI | 0.00 | 1 | -0.17 | 40 | -6.80 | | | Lakshan, G Dilina Udeepa | | | 1292 | SRI | 0.00 | 1 | -0.27 | 40 | -10.80 | |  Karunarathne, D D W Gamini | | | 1303 | SRI | 0.50 | 1 | 0.24 | 40 | 9.60 | | | Yatawaka, U Sirinama | | | 1258 | SRI | 0.00 | 1 | -0.31 | 40 | -12.40 | |
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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