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Individual Calculations February 2018 |
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| Cooray, T C M Dulein Kavindu Total change: 73.20 | |   |
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| 2nd SSC Open International Rating Chess Tournament 2017 | Matara | SRI | 2017-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1543 | 1385 | 4.50 | 7 | 2.11 | 40 | 84.40 | |
|  Senamanthila, Milani | | | 1081 | SRI | 1.00 | 1 | 0.14 | 40 | 5.60 | |  Munasinghe, Chanaka Aruna | | | 1785 * | SRI | 1.00 | 1 | 0.92 | 40 | 36.80 | | | Lamahewa, C | | | 1785 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Madushanka, Harsha | | | 1785 * | SRI | 0.50 | 1 | 0.42 | 40 | 16.80 | | | Wickramarathne, P W G Gaveshi | | | 1134 | SRI | 1.00 | 1 | 0.19 | 40 | 7.60 | | | Abeysinghe, H M H Janandani | | | 1456 | SRI | 0.50 | 1 | 0.10 | 40 | 4.00 | | | Sandamith, W M | | | 1777 | SRI | 0.50 | 1 | 0.42 | 40 | 16.80 | | | * 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) | | | | Sri Lanka National Youth Chess Championship 2017 and 2018 Under - 13 years | Colombo | SRI | 2017-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1126 | 1385 | 4.00 | 6 | -0.86 | 40 | -34.40 | |
| | Vidushan, Vakeesan | | | 1118 | SRI | 0.00 | 1 | -0.82 | 40 | -32.80 | | | Ruwantha, S K Ramindu | | | 1027 | SRI | 1.00 | 1 | 0.10 | 40 | 4.00 | | | De Silva, L H L Manuja Lakshitha | | | 1045 | SRI | 1.00 | 1 | 0.12 | 40 | 4.80 | | | Morais, Sanithu Leander Pamudith | | | 1186 | SRI | 1.00 | 1 | 0.24 | 40 | 9.60 | | | Weerasinghe, Sethum | | | 1224 | SRI | 0.00 | 1 | -0.71 | 40 | -28.40 | | | Palihakkara, Nihindu Bimsath | | | 1154 | SRI | 1.00 | 1 | 0.21 | 40 | 8.40 | |
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) | | | | 22nd Battle of the Kings Inter School Team Chess Championship 2018 | Colombo | SRI | 2018-01-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1306 | 1385 | 3.00 | 4 | 0.58 | 40 | 23.20 | |
| | Suvethican, V | | | 1063 | SRI | 1.00 | 1 | 0.13 | 40 | 5.20 | | | Herath, H M D A B | | | 1072 | SRI | 1.00 | 1 | 0.14 | 40 | 5.60 | | | Nanayakkara, P N J | | | 1304 | SRI | 1.00 | 1 | 0.39 | 40 | 15.60 | | | Piyumantha, M Sasith Nipun | f | | 1785 * | SRI | 0.00 | 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) | | |
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