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Individual Calculations November 2015 |
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| De Silva, J I Ajantha Total change: -25.60 | |   |
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| Buddhi International Rating Chess Championship 2015 | Gampaha | SRI | 2015-09-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1358 | 1526 | 4.50 | 8 | -1.02 | 20 | -20.40 | |
|  Wijesinghe, W A D Sumudu | | | 1201 | SRI | 1.00 | 1 | 0.13 | 20 | 2.60 | |  Lakshitha, H H Sasindu | | | 1749 | SRI | 0.00 | 1 | -0.22 | 20 | -4.40 | | | Gunasekara, Malaka | | | 1187 | SRI | 1.00 | 1 | 0.12 | 20 | 2.40 | | | Piyathilake, K D D H | | | 1325 | SRI | 1.00 | 1 | 0.24 | 20 | 4.80 | | | Theekshana, H G Denuwan | | | 1693 | SRI | 0.00 | 1 | -0.28 | 20 | -5.60 | | | Sarathchandra, Gihansa M | | | 1336 | SRI | 0.00 | 1 | -0.75 | 20 | -15.00 | | | Kumara, Reshan | | | 1158 | SRI | 0.50 | 1 | -0.40 | 20 | -8.00 | | | Athukorala, A P M | | | 1217 | SRI | 1.00 | 1 | 0.14 | 20 | 2.80 | |
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) | | | | Negombo Chess Festival 2015 | Negombo | SRI | 2015-10-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1408 | 1526 | 3.50 | 6 | -0.26 | 20 | -5.20 | |
| | Rathnayake, M A A H | | | 1910 | SRI | 0.00 | 1 | -0.09 | 20 | -1.80 | | | Jayasinghe, J A V A T | | | 1126 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Lamahewa, C | | | 1861 | SRI | 0.00 | 1 | -0.12 | 20 | -2.40 | | | Jayathunga, G D Pasindu | | | 1131 | SRI | 0.50 | 1 | -0.42 | 20 | -8.40 | | | Srilal, D A D T | | | 1126 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Wanigarathne, K A N | | | 1295 | SRI | 1.00 | 1 | 0.21 | 20 | 4.20 | | | * 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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