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Individual Calculations March 2018 |
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| De Silva, Osheen Total change: -25.80 | |   |
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| Kaluthara International Chess Festival 2018 | Kaluthara | SRI | 2018-01-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1644 | 1856 | 5.50 | 8 | -0.39 | 20 | -7.80 | |
|  Rathnayaka, Anjana Katugaha | | | 1456 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Yasanga, W C M Kasun | | | 1456 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Weerakoon, D D P | | | 1620 | SRI | 1.00 | 1 | 0.20 | 20 | 4.00 | | | Priyankara, Chamil | | | 2023 | SRI | 0.50 | 1 | 0.22 | 20 | 4.40 | | | Athukorala, A T N | | | 1456 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | De Silva, Elath Mathanga | | | 1851 | SRI | 0.50 | 1 | -0.01 | 20 | -0.20 | | | Madusanka, L D P | | | 1681 | SRI | 0.00 | 1 | -0.73 | 20 | -14.60 | | | Wijesinghe, G B | | | 1607 | SRI | 0.50 | 1 | -0.31 | 20 | -6.20 | | | * 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 National (Major Division) Chess Championship 2018 - Colombo Event | Colombo | SRI | 2018-02-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1573 | 1876 | 5.00 | 7 | -0.90 | 20 | -18.00 | |
| | Hewawasam, H Y Thisaga Manvidu | | | 1476 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Ushan, Lochana | | | 1476 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Jayalath, Thusitha Kumara | | | 1538 | SRI | 1.00 | 1 | 0.12 | 20 | 2.40 | | | Pallie, Tuan Ehshan | | | 1631 | SRI | 0.00 | 1 | -0.80 | 20 | -16.00 | | | Dahanayake, Isara Banidu | c | | 1491 | SRI | 1.00 | 1 | 0.09 | 20 | 1.80 | | | Senanayaka, P D | | | 1721 | SRI | 0.50 | 1 | -0.21 | 20 | -4.20 | | | Anojman, S. | | | 1676 | SRI | 0.50 | 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) | | |
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