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Individual Calculations February 2020 |
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| Wickramaarachchi, Nayanaka Insara Total change: -18.40 | |   |
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| Sri Lanka National Youth Chess Championship 2019 - Under 11 years | Colombo | SRI | 2019-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1092 | 1179 | 3.00 | 4 | 0.53 | 40 | 21.20 | |
|  Nagasinghe, Seniru Ranuth | | | 1049 | SRI | 1.00 | 1 | 0.32 | 40 | 12.80 | |  Hendavitharana, D S | | | 1112 | SRI | 0.50 | 1 | -0.09 | 40 | -3.60 | | | Wanasinghe, Dinitha Sandul | | | 1015 | SRI | 1.00 | 1 | 0.28 | 40 | 11.20 | | | Weerasekara, Dinul Vinsitha | | | 1190 | SRI | 0.50 | 1 | 0.02 | 40 | 0.80 | |
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) | | | | Kaluthara International Chess Festival 2020 | Kaluthara | SRI | 2020-01-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1026 | 1214 | 0.50 | 2 | -0.99 | 40 | -39.60 | |
| | Ovitigala, Chenitha Mithvidu | | | 1024 | SRI | 0.50 | 1 | -0.25 | 40 | -10.00 | | | Yapa, Y P G P | | | 1027 | SRI | 0.00 | 1 | -0.74 | 40 | -29.60 | |
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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