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Individual Calculations February 2020 |
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| De Silva, T Dinura Hemjith Total change: 16.00 | |   |
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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 |
| 1209 | 1153 | 2.00 | 3 | 0.61 | 40 | 24.40 | |
|  Gawaramanna, M B M Nethul Sasmith | | | 1060 | SRI | 1.00 | 1 | 0.37 | 40 | 14.80 | |  Thenuwara, Rashmika | | | 1541 | SRI | 0.00 | 1 | -0.09 | 40 | -3.60 | | | Kumarasooriya, N R C T | | | 1025 | SRI | 1.00 | 1 | 0.33 | 40 | 13.20 | |
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) | | | | 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 |
| 1319 | 1153 | 1.00 | 4 | -0.21 | 40 | -8.40 | |
| | Malinda, Sudesh | | | 1451 | SRI | 0.00 | 1 | -0.15 | 40 | -6.00 | | | Bentharaarachchi, Vinuga Ometh | | | 1450 | SRI | 0.00 | 1 | -0.15 | 40 | -6.00 | | | Jayaweera, D A Thevindu Nimnal | | | 1063 | SRI | 1.00 | 1 | 0.38 | 40 | 15.20 | | | Perera, S D Lahiru | | | 1313 | SRI | 0.00 | 1 | -0.29 | 40 | -11.60 | |
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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