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Individual Calculations March 2015 |
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| Marapana, Sanupa Bimsath Total change: 14.00 | |   |
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| Colombo Chess Festival 2015 | Colombo | SRI | 2015-01-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1438 | 1148 | 0.00 | 3 | -0.49 | 40 | -19.60 | |
|  Gunarathna, D A Viraj Darshana | | | 1538 | SRI | 0.00 | 1 | -0.09 | 40 | -3.60 | | | Abeysinghe, H M H Janandani | | | 1399 | SRI | 0.00 | 1 | -0.19 | 40 | -7.60 | | | Jayasundara, Mihisha Anjali | | | 1378 | SRI | 0.00 | 1 | -0.21 | 40 | -8.40 | |
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) | | | | Sri Lanka Major Division Chess Championship 2015 Kurunegala | Kurunegala | SRI | 2015-02-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1308 | 1124 | 2.50 | 6 | 0.84 | 40 | 33.60 | |
| | Dilrukshi, B W M Nadeesha | | | 1524 * | SRI | 0.50 | 1 | 0.42 | 40 | 16.80 | |  Jayasinghe, J A A D K | | | 1296 | SRI | 0.00 | 1 | -0.27 | 40 | -10.80 | | | Rathnayake, R M A K | | | 1237 | SRI | 1.00 | 1 | 0.65 | 40 | 26.00 | | | Dabarera, G W D M | | | 1377 | SRI | 0.00 | 1 | -0.19 | 40 | -7.60 | | | Mapitigamaarachchi, N P | | | 1207 | SRI | 1.00 | 1 | 0.61 | 40 | 24.40 | | | Narasinghe, N A Yashitha Binuvar | | | 1208 | SRI | 0.00 | 1 | -0.38 | 40 | -15.20 | | | * 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) | | |
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