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Individual Calculations October 2018 |
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| Wickramaarachchi, Nayanaka Insara Total change: -38.80 | |   |
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| 4th Negambo International Chess Festival 2018 | Negambo | SRI | 2018-08-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1315 | 1046 | 0.00 | 2 | -0.34 | 40 | -13.60 | |
|  Jayasinghe, Joseph | | | 1315 | SRI | 0.00 | 1 | -0.17 | 40 | -6.80 | |  Chandes, K Yasindu | | | 1314 | SRI | 0.00 | 1 | -0.17 | 40 | -6.80 | |
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) | | | | Sri Lanka Junior National Chess Championship 2018 | Colombo | SRI | 2018-08-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1220 | 1046 | 0.50 | 4 | -0.63 | 40 | -25.20 | |
| | Samaraweera, Dimuth Indeepa | | | 1385 | SRI | 0.00 | 1 | -0.12 | 40 | -4.80 | | | Alwis, B H A Rasidu | | | 1176 | SRI | 0.50 | 1 | 0.18 | 40 | 7.20 | | | Wiijesinghe , Pasan Januda | | | 1190 | SRI | 0.00 | 1 | -0.31 | 40 | -12.40 | | | Weerathungalage, W D Malisha Sasv | | | 1130 | SRI | 0.00 | 1 | -0.38 | 40 | -15.20 | |
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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