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Individual Calculations September 2015 |
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| Rathnayaka, Anjana Katugaha Total change: 24.00 | |   |
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| National Amateur Chess Championship 2015 | Colombo | SRI | 2015-08-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1464 | 1100 | 0.00 | 3 | -0.31 | 40 | -12.40 | |
|  Askey, Raveen Nimesh | | | 1500 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | |  Dissanayake, Manusha Dinuk | | | 1477 | SRI | 0.00 | 1 | -0.09 | 40 | -3.60 | | | Fernando, J S Aloka | | | 1414 | SRI | 0.00 | 1 | -0.14 | 40 | -5.60 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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 Open Chess Championship 2015 | Colombo | SRI | 2015-08-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1322 | 1100 | 2.50 | 7 | 0.91 | 40 | 36.40 | |
| | Fernando, J S Aloka | | | 1414 | SRI | 0.00 | 1 | -0.14 | 40 | -5.60 | | | Mendis, P Kavinda | | | 1286 | SRI | 0.00 | 1 | -0.26 | 40 | -10.40 | | | Deraniyagala, Vimukthi Prathap | | | 1289 | SRI | 0.50 | 1 | 0.25 | 40 | 10.00 | | | Wijayasuriya, Pulindu Thewmika | | | 1243 | SRI | 1.00 | 1 | 0.69 | 40 | 27.60 | | | Thuduwage, Yasasirini Pabasara | | | 1400 | SRI | 0.00 | 1 | -0.15 | 40 | -6.00 | | | Liyanage, R L C Sasmitha | | | 1226 | SRI | 1.00 | 1 | 0.67 | 40 | 26.80 | | | Liyanarachchi, Sanosh Shamal | | | 1394 | SRI | 0.00 | 1 | -0.15 | 40 | -6.00 | |
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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