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Individual Calculations September 2015 |
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| Lamawansa, Yasas Total change: -4.00 | |   |
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| National Amateur Chess Championship 2015 | Colombo | SRI | 2015-08-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1705 | 1977 | 7.00 | 9 | -0.26 | 20 | -5.20 | |
|  Rajapaksha, Isum Asitha | | | 1577 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Wijesinghe, N L C Dojitha | | | 1577 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Liyanage, Ranindu Dilshan | | | 1622 | SRI | 1.00 | 1 | 0.11 | 20 | 2.20 | | | Madusanka, L D P | | | 1740 | SRI | 1.00 | 1 | 0.20 | 20 | 4.00 | | | Gunasinghe, W A T S | | | 1887 | SRI | 0.00 | 1 | -0.62 | 20 | -12.40 | | | Siriwardena, G T D | | | 1577 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Ekanayake, A M B | | | 1650 | SRI | 1.00 | 1 | 0.13 | 20 | 2.60 | | | Randil, Lakshitha | | | 1887 | SRI | 0.50 | 1 | -0.12 | 20 | -2.40 | | | Munasinghe, Thisura | | | 1829 | SRI | 0.50 | 1 | -0.20 | 20 | -4.00 | | | * 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) | | | | 6th Kandy Open International Rating Chess Championship | Kandy | SRI | 2015-08-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1712 | 1977 | 6.00 | 8 | -0.38 | 20 | -7.60 | |
| | Dayawansa, Panduka Dulisha | | | 1577 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Yapa Bandara, Chamodya | | | 1577 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Weerasooriya, J M | | | 1698 | SRI | 0.50 | 1 | -0.34 | 20 | -6.80 | | | Kandearachchi, Jayanga | | | 1676 | SRI | 1.00 | 1 | 0.15 | 20 | 3.00 | | | Sisira, Kumara K P | | | 1755 | SRI | 1.00 | 1 | 0.22 | 20 | 4.40 | | | Alahakoon, Isuru | | | 2051 | SRI | 0.00 | 1 | -0.40 | 20 | -8.00 | | | Jayaweera, K P C D B | | | 1577 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Samaranayake, K P R N | | | 1786 | SRI | 0.50 | 1 | -0.25 | 20 | -5.00 | | | * 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 |
| 1820 | 1977 | 6.50 | 9 | 0.44 | 20 | 8.80 | |
| | Pallie, Ehsha Mishela | | wc | 1577 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Abeydeera, Adeesha | | | 1577 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Liyanage, Ranindu Dilshan | | | 1622 | SRI | 1.00 | 1 | 0.11 | 20 | 2.20 | | | Weerasinghe, Chamath | | | 1818 | SRI | 1.00 | 1 | 0.29 | 20 | 5.80 | | | Boricha, Ketan | | | 2043 | IND | 0.50 | 1 | 0.09 | 20 | 1.80 | | | Danushka, M A N | | | 1879 | SRI | 1.00 | 1 | 0.37 | 20 | 7.40 | | | Priyankara, Chamil | | | 2043 | SRI | 0.50 | 1 | 0.09 | 20 | 1.80 | | | Galappaththi, Chinthaka Anuruddh | f | | 2066 | SRI | 0.00 | 1 | -0.38 | 20 | -7.60 | | | Naotunna, D R | | | 1751 | SRI | 0.50 | 1 | -0.29 | 20 | -5.80 | | | * 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) | | |
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