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Individual Calculations January 2018 |
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| De Silva, Elath Mathanga Total change: 28.80 | |   |
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| Sri Lanka Inter Club Super League Chess Championship 2017 | Colombo | SRI | 2017-12-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1957 | 1822 | 3.00 | 6 | 1.03 | 20 | 20.60 | |
|  Danushka, M A N | | | 1886 | SRI | 0.00 | 1 | -0.41 | 20 | -8.20 | | | Perera, W C C | c | | 2008 | SRI | 0.50 | 1 | 0.24 | 20 | 4.80 | | | Peiris, T G M | | | 2143 | SRI | 0.50 | 1 | 0.37 | 20 | 7.40 | |  Munasinghe, Lahiru | | | 1936 | SRI | 0.50 | 1 | 0.16 | 20 | 3.20 | | | Lasitha, Subash | c | | 1839 | SRI | 0.50 | 1 | 0.02 | 20 | 0.40 | | | Herath, Nishendra | | | 1931 | SRI | 1.00 | 1 | 0.65 | 20 | 13.00 | |
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) | | | | 9th Ethugalpura International Rating Chess Championship 2017 | Kurunegala | SRI | 2017-12-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1602 | 1822 | 7.00 | 9 | 0.41 | 20 | 8.20 | |
| | Gamlath, G M M W | | | 1422 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Ekanayake, D S | | | 1422 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Ekanayake, N N B | | | 1422 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Kumari, S C T | | | 1479 | SRI | 1.00 | 1 | 0.12 | 20 | 2.40 | | | Kodithuwakku, Lisara | | | 1626 | SRI | 1.00 | 1 | 0.25 | 20 | 5.00 | | | Koggala, W S Vidura K | | | 1988 | SRI | 0.00 | 1 | -0.28 | 20 | -5.60 | | | Abhimanyu, Iraja | | | 1523 | SRI | 1.00 | 1 | 0.15 | 20 | 3.00 | | | Alahakoon, Isuru | | | 2115 | SRI | 0.00 | 1 | -0.15 | 20 | -3.00 | | | Jayasena, Tharaka Udayanga | | | 1422 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | * 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) | | |
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