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Individual Calculations February 2019 |
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| Thennakoon, Disara Total change: 12.80 | |   |
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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 |
| 1405 | 1101 | 0.00 | 2 | -0.30 | 40 | -12.00 | |
|  Wickramaarachchi, Nayanaka Insara | | | 1340 | SRI | 0.00 | 1 | -0.20 | 40 | -8.00 | |  Saravanabaavan, Brijeash | | | 1469 | SRI | 0.00 | 1 | -0.10 | 40 | -4.00 | |
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 |
| 1398 | 1116 | 1.50 | 5 | 0.62 | 40 | 24.80 | |
| | Jayaweera, Y | | | 1516 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Seneka, M W Thenumi | | | 1333 | SRI | 1.00 | 1 | 0.78 | 40 | 31.20 | | | Sooriyaarachchi, Isuru Madusha | | | 1516 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Chandes, K Yasindu | | | 1301 | SRI | 0.00 | 1 | -0.26 | 40 | -10.40 | | | Punchihewa, Kokila Prageeth | | | 1322 | SRI | 0.50 | 1 | 0.26 | 40 | 10.40 | | | * 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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