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Individual Calculations February 2019 |
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| Perera, G Thinuka Geethula Total change: 32.40 | |   |
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| Sri Lanka National Youth Championship 2018 - Under 11 | Colombo | SRI | 2018-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1027 | 1144 | 1.00 | 1 | 0.34 | 40 | 13.60 | |
|  Vithanage, P N | | | 1027 | SRI | 1.00 | 1 | 0.34 | 40 | 13.60 | |
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) | | | | 7th Kaluthara Chess Festival 2019 | Kaluthara | SRI | 2019-01-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1483 | 1157 | 1.00 | 4 | 0.47 | 40 | 18.80 | |
| | Sachithra, Rukmal | | | 1445 | SRI | 1.00 | 1 | 0.84 | 40 | 33.60 | |  Piyumantha, M Thisal Manjith | | | 1557 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Abhimanyu, Iraja | | | 1471 | SRI | 0.00 | 1 | -0.14 | 40 | -5.60 | | | Rupasinghe, R A L P | | | 1459 | SRI | 0.00 | 1 | -0.15 | 40 | -6.00 | | | * 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) | | |
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