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Individual Calculations October 2019 |
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| Manuranga, D Lahiru Total change: -37.40 | |   |
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| Sri Lanka University Games Chess Championship 2019 - Men | Matara | SRI | 2019-09-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1722 | 1589 | 1.50 | 3 | 0.50 | 20 | 10.00 | |
|  Ariyawansa, K A P M | | | 1864 | SRI | 1.00 | 1 | 0.83 | 20 | 16.60 | |  Jayaratne, J P D S | | | 1683 | SRI | 0.50 | 1 | 0.13 | 20 | 2.60 | | | Abeywickrama, Sachintha | | | 1618 | SRI | 0.00 | 1 | -0.46 | 20 | -9.20 | |
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) | | | | 10th Buddhi International Rating Chess Championship 2019 | Gampaha | SRI | 2019-09-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1377 | 1589 | 7.00 | 9 | 0.24 | 20 | 4.80 | |
| | Viduranga, Oshadha | | | 1189 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Tharanga, B Nalin | | | 1211 | SRI | 1.00 | 1 | 0.09 | 20 | 1.80 | | | Indrajith, J A K N T | | | 1357 | SRI | 1.00 | 1 | 0.21 | 20 | 4.20 | | | Alahakoon, Isuru | | | 1989 * | SRI | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Piyarthne, Movindu Lushan | | | 1279 | SRI | 1.00 | 1 | 0.14 | 20 | 2.80 | | | Wijesinghe, W A D Sumudu | | | 1367 | SRI | 1.00 | 1 | 0.22 | 20 | 4.40 | | | Weerasekara, Dishal Nimsara | | | 1244 | SRI | 0.00 | 1 | -0.89 | 20 | -17.80 | | | De Silva, J I Ajantha | | | 1357 | SRI | 1.00 | 1 | 0.21 | 20 | 4.20 | | | Ekanayake, Hasindu Chiranga | | | 1403 | SRI | 1.00 | 1 | 0.26 | 20 | 5.20 | | | * 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) | | | | National Sports Festival Chess Championship 2019 - Men | Badulla | SRI | 2019-09-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1507 | 1589 | 1.00 | 6 | -2.61 | 20 | -52.20 | |
| | Ranasinghe, R Y G | | | 1369 | SRI | 0.00 | 1 | -0.78 | 20 | -15.60 | | | Jayaweera, C L | | | 1834 | SRI | 0.00 | 1 | -0.20 | 20 | -4.00 | | | Uthayatharsan, Ramachandran | | | 1258 | SRI | 0.00 | 1 | -0.88 | 20 | -17.60 | | | Rukmal, G Thasitha | | | 1495 | SRI | 0.50 | 1 | -0.13 | 20 | -2.60 | | | Gunarathna, D A Viraj Darshana | | | 1420 | SRI | 0.50 | 1 | -0.22 | 20 | -4.40 | | | Suriyabandara, S M D | | | 1664 | SRI | 0.00 | 1 | -0.40 | 20 | -8.00 | |
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) | | |
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