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Individual Calculations February 2020 |
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| Rathnayaka, Minaga Yethmin Total change: -87.60 | |   |
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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 |
| 1047 | 1237 | 1.00 | 4 | -1.99 | 40 | -79.60 | |
|  Abiru, K A Aken | | | 1007 | SRI | 0.00 | 1 | -0.79 | 40 | -31.60 | | | Wijerathna, Mayon Thinoth | | | 1055 | SRI | 0.50 | 1 | -0.24 | 40 | -9.60 | |  Kodithuwakku, K K Dinujaya | | | 1001 | SRI | 0.50 | 1 | -0.30 | 40 | -12.00 | | | Liyanage, Savinu Suhaswin | | | 1123 | SRI | 0.00 | 1 | -0.66 | 40 | -26.40 | |
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) | | | | Kaluthara International Chess Festival 2020 | Kaluthara | SRI | 2020-01-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1146 | 1253 | 3.00 | 5 | -0.20 | 40 | -8.00 | |
| | Ovitigala, Chenitha Mithvidu | | | 1024 | SRI | 0.50 | 1 | -0.29 | 40 | -11.60 | | | Nanayakkara, N W P K W | | | 1028 | SRI | 0.50 | 1 | -0.28 | 40 | -11.20 | | | Wickramasinghe, V W A Vinuda Vidm | | | 1081 | SRI | 1.00 | 1 | 0.27 | 40 | 10.80 | | | Rukmal, G Thasitha | | | 1482 | SRI | 0.00 | 1 | -0.21 | 40 | -8.40 | | | Gamage, B K Sayumi Hasithma | | | 1113 | SRI | 1.00 | 1 | 0.31 | 40 | 12.40 | |
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) | | |
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