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Individual Calculations March 2011 |
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| Perera, W C C Total change: 16.95 | |   |
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| 64Squares Chess Challenge - 2011 | Kandy | SRI | 2011-01-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1947 | 2060 | 3.50 | 5 | 0.38 | 15 | 5.70 | |
|  Randil, Lakshitha | | | 1912 | SRI | 0.50 | 1 | -0.20 | 15 | -3.00 | |  Suyan, Belurkar | | | 1660 * | IND | 1.00 | 1 | 0.08 | 15 | 1.20 | | | Rajapakse, R M C M | | | 2184 | SRI | 0.50 | 1 | 0.17 | 15 | 2.55 | | | Bandara, A J K D | | | 1830 | SRI | 1.00 | 1 | 0.21 | 15 | 3.15 | | | Weerawardane, R | | | 2148 | SRI | 0.50 | 1 | 0.12 | 15 | 1.80 | | | * 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) | | | | Inter Club Super League Chess Championships 2010 | Colombo | SRI | 2011-02-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1951 | 2060 | 2.50 | 3 | 0.57 | 15 | 8.55 | |
| | Pieris, Tss | | | 1995 | SRI | 1.00 | 1 | 0.41 | 15 | 6.15 | | | Lasith Subash, Wa | | | 1874 | SRI | 1.00 | 1 | 0.26 | 15 | 3.90 | | | Wijepura, Vb | | | 1984 | SRI | 0.50 | 1 | -0.10 | 15 | -1.50 | |
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) | | | | 4th Colombo International Chess Festival 2011 | Colombo | SRI | 2011-02-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1879 | 2060 | 6.00 | 8 | 0.18 | 15 | 2.70 | |
| | Ahmed, Ashraf | | | 1790 | MDV | 0.50 | 1 | -0.33 | 15 | -4.95 | | | Wettasinha, Vasanta | | | 1785 | SRI | 1.00 | 1 | 0.17 | 15 | 2.55 | | | Farshan, H M | | | 1827 | SRI | 1.00 | 1 | 0.21 | 15 | 3.15 | | | Kalugampitiya, R S | | | 2073 | SRI | 0.50 | 1 | 0.02 | 15 | 0.30 | | | Lansakara, L M T I | | | 1855 | SRI | 0.50 | 1 | -0.26 | 15 | -3.90 | | | Kuruwitage, Yasas Kalana | | | 1894 | SRI | 1.00 | 1 | 0.28 | 15 | 4.20 | | | Jayasundara, P K U M | | | 1949 | SRI | 0.50 | 1 | -0.15 | 15 | -2.25 | | | Thrimavitharana, Ravin | | | 1857 | SRI | 1.00 | 1 | 0.24 | 15 | 3.60 | |
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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