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Individual Calculations September 2015 |
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| Weerasinghe, Chamath Total change: -73.60 | |   |
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| National Amateur Chess Championship 2015 | Colombo | SRI | 2015-08-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1537 | 1818 | 5.50 | 8 | -0.98 | 40 | -39.20 | |
|  Weerasooriya, Senith D Jagoda | | | 1418 * | SRI | 1.00 | 1 | 0.08 | 40 | 3.20 | |  Deraniyagala, Vimukthi Prathap | | | 1418 * | SRI | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Siriwardena, G T D | | | 1534 | SRI | 0.00 | 1 | -0.84 | 40 | -33.60 | | | Theivaseelan, Selvarajah | | | 1418 * | SRI | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Gunarathna, D A Viraj Darshana | | | 1518 | SRI | 0.50 | 1 | -0.35 | 40 | -14.00 | | | Herath, H M S S A | | | 1569 | SRI | 0.50 | 1 | -0.31 | 40 | -12.40 | | | Pallie, Tuan Ehshan | | | 1491 | SRI | 1.00 | 1 | 0.13 | 40 | 5.20 | | | Dassanayake, D M G S | | | 1927 | SRI | 0.50 | 1 | 0.15 | 40 | 6.00 | | | * 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 |
| 1435 | 1818 | 5.50 | 8 | -1.77 | 40 | -70.80 | |
| | Thanuja, Dewsara | | | 1418 * | SRI | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Harrikizhan, K C | | | 1418 * | SRI | 0.00 | 1 | -0.92 | 40 | -36.80 | | | Dissanayake , Sithila C | | | 1418 * | SRI | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Fernando, G W Nethmi L | | | 1418 * | SRI | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Dissanayake, Manusha Dinuk | | | 1477 | SRI | 1.00 | 1 | 0.12 | 40 | 4.80 | | | Iddagoda, Nikitha | | | 1444 | SRI | 0.00 | 1 | -0.90 | 40 | -36.00 | | | Thawalampola, Oshada D | | | 1467 | SRI | 0.50 | 1 | -0.39 | 40 | -15.60 | | | Nanayakkara, T | | | 1418 * | SRI | 1.00 | 1 | 0.08 | 40 | 3.20 | | | * 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) | | | | Sri Lanka Open Chess Championship 2015 | Colombo | SRI | 2015-08-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1701 | 1818 | 6.50 | 9 | 0.91 | 40 | 36.40 | |
| | Bihansith, Sachina | | | 1418 * | SRI | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Rajapaksa, Inura | | | 1418 * | SRI | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Kumarawadu, C S | | | 1581 | SRI | 1.00 | 1 | 0.20 | 40 | 8.00 | | | Lamawansa, Yasas | | | 1977 | SRI | 0.00 | 1 | -0.29 | 40 | -11.60 | | | Pasqual, Anuki | | | 1480 | SRI | 1.00 | 1 | 0.12 | 40 | 4.80 | | | De Silva, Osheen | | | 1909 | SRI | 0.50 | 1 | 0.12 | 40 | 4.80 | | | Randil, Lakshitha | | | 1887 | SRI | 0.50 | 1 | 0.10 | 40 | 4.00 | | | Dabare, Pulasthi | | | 1536 | SRI | 1.00 | 1 | 0.16 | 40 | 6.40 | | | Perera, W C C | c | | 2100 | SRI | 0.50 | 1 | 0.34 | 40 | 13.60 | | | * 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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