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Individual Calculations February 2020 |
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| Weerathunga, Okith Total change: -27.60 | |   |
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| Sri Lanka National Youth Chess Championship 2019 - Under 15 years | Colombo | SRI | 2019-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1289 | 1075 | 1.00 | 5 | -0.30 | 40 | -12.00 | |
|  Cooray, T C M Dulein Kavindu | | | 1475 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Alwis, Randeepa | | | 1255 | SRI | 0.00 | 1 | -0.26 | 40 | -10.40 | | | Dahanayake, Isara Banidu | c | | 1475 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | |  Mudalige, S M R S | | | 1014 | SRI | 1.00 | 1 | 0.42 | 40 | 16.80 | | | Basnayake, Kaushal Chaturanga | | | 1224 | SRI | 0.00 | 1 | -0.30 | 40 | -12.00 | | | * 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) | | | | Battle of the Kings - All Island Schools Team Chess Championship 2020 | Colombo | SRI | 2020-01-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1156 | 1075 | 0.00 | 1 | -0.39 | 40 | -15.60 | |
| | Wijesinghe, N L Senan Lonitha | | | 1156 | SRI | 0.00 | 1 | -0.39 | 40 | -15.60 | |
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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