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Individual Calculations January 2020 |
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| Jayawickrama, U W R K Total change: -15.80 | |   |
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| 11th Ethugalpura International Chess Championship 2019 | Kurunegala | SRI | 2019-11-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1528 | 1230 | 1.00 | 4 | 0.39 | 20 | 7.80 | |
|  Jayaweera, Y | | | 1630 * | SRI | 0.00 | 1 | -0.08 | 20 | -1.60 | |  Koggala, W S T D | | | 1488 | SRI | 0.00 | 1 | -0.18 | 20 | -3.60 | | | Chandrasiri, P K | | | 1471 | SRI | 1.00 | 1 | 0.80 | 20 | 16.00 | | | Savinda, Yasas | | | 1524 | SRI | 0.00 | 1 | -0.15 | 20 | -3.00 | | | * 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) | | | | The Kolonnawa Chess Classic International Rating Tournament 2019 | Colombo | SRI | 2019-12-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1193 | 1230 | 0.50 | 3 | -1.18 | 20 | -23.60 | |
| | Liyanage, Pesandu Rashmitha | | | 1555 | SRI | 0.00 | 1 | -0.13 | 20 | -2.60 | | | Ranasinghe, R A Manul Lakvindu | | | 1024 | SRI | 0.50 | 1 | -0.26 | 20 | -5.20 | | | Kodithuwakku, K K Dinujaya | | | 1001 | SRI | 0.00 | 1 | -0.79 | 20 | -15.80 | |
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) | | |
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