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Individual Calculations January 2020 |
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| Koggala, W S T D Total change: -8.40 | |   |
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| 11th Ethugalpura International Chess Championship 2019 | Kurunegala | SRI | 2019-11-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1276 | 1488 | 4.00 | 7 | -1.22 | 20 | -24.40 | |
|  Thisera, I G T G | | | 1152 | SRI | 1.00 | 1 | 0.12 | 20 | 2.40 | | | Lewke Bandara, Induwara | | | 1118 | SRI | 1.00 | 1 | 0.10 | 20 | 2.00 | |  Jayawickrama, U W R K | | | 1230 | SRI | 1.00 | 1 | 0.18 | 20 | 3.60 | | | Weerasinghe, C C | | | 1824 | SRI | 0.00 | 1 | -0.12 | 20 | -2.40 | | | Rajapaksa, Minagi | | | 1161 | SRI | 1.00 | 1 | 0.13 | 20 | 2.60 | | | Pathmasiri, R D Isuru Saranga | | | 1299 | SRI | 0.00 | 1 | -0.75 | 20 | -15.00 | | | Weerawardana, Oneli Vihanga | | | 1148 | SRI | 0.00 | 1 | -0.88 | 20 | -17.60 | |
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) | | | | Sri Lanka Inter Club Women Chess Championship 2019 | Colombo | SRI | 2019-12-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1581 | 1488 | 2.00 | 3 | 0.80 | 20 | 16.00 | |
| | Methmani, Nelunika | | wm | 1565 | SRI | 0.50 | 1 | 0.11 | 20 | 2.20 | | | Premanath, Dinushki | | wf | 1832 | SRI | 0.50 | 1 | 0.38 | 20 | 7.60 | | | Wijesinghe, W M M N | | | 1346 | SRI | 1.00 | 1 | 0.31 | 20 | 6.20 | |
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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