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Individual Calculations January 2020 |
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| Wilvalaarachchi, Oneli Omaya Total change: 58.80 | |   |
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| Sri Lanka Inter Club Women Chess Championship 2019 | Colombo | SRI | 2019-12-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1489 | 1340 | 3.00 | 4 | 1.63 | 40 | 65.20 | |
|  Chandrasiri, S A K | | wf | 1740 * | SRI | 1.00 | 1 | 0.92 | 40 | 36.80 | |  Ranganath, Tharuli Vihasna | | | 1268 | SRI | 1.00 | 1 | 0.40 | 40 | 16.00 | | | Abeysinghe, H M H Janandani | | | 1630 | SRI | 1.00 | 1 | 0.84 | 40 | 33.60 | | | Danawalavithana, D.w. A.g, H. | | | 1316 | SRI | 0.00 | 1 | -0.53 | 40 | -21.20 | | | * 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) | | | | Sri Lanka Women's National Amateur Chess Championship 2019 | Colombo | SRI | 2019-12-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1279 | 1340 | 4.50 | 8 | -0.16 | 40 | -6.40 | |
| | Jayasinghe, Miyuni Thisanya | | | 1090 | SRI | 0.50 | 1 | -0.31 | 40 | -12.40 | | | Weerawardana, Oneli Vihanga | | | 1148 | SRI | 0.00 | 1 | -0.75 | 40 | -30.00 | | | Ramanayake, Nemindi Linaya | | | 1303 | SRI | 1.00 | 1 | 0.45 | 40 | 18.00 | | | Sandanayake, Dehansa Nisanduni | | | 1234 | SRI | 1.00 | 1 | 0.36 | 40 | 14.40 | | | Wickramarathne, P W G Gaveshi | | | 1231 | SRI | 1.00 | 1 | 0.35 | 40 | 14.00 | | | Sandanayake, Nimansa Sasanduni | | | 1217 | SRI | 1.00 | 1 | 0.33 | 40 | 13.20 | | | Ranasinghe, Shalini | | | 1583 | SRI | 0.00 | 1 | -0.20 | 40 | -8.00 | | | Jayatilaka, W M M Amodya | | | 1422 | SRI | 0.00 | 1 | -0.39 | 40 | -15.60 | |
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) | | |
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