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Individual Calculations January 2020 |
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| Weerawardana, Oneli Vihanga Total change: 237.88 | |   |
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| 11th Ethugalpura International Chess Championship 2019 | Kurunegala | SRI | 2019-11-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1481 | 1148 | 2.50 | 5 | 1.88 | 38 | 71.44 | |
|  Chandrasiri, P K | | | 1471 | SRI | 0.00 | 1 | -0.13 | 38 | -4.94 | | | Bandara, S A R B | | | 1548 * | SRI | 0.50 | 1 | 0.42 | 38 | 15.96 | |  Gunawardana, I M T M | | wf | 1458 | SRI | 0.50 | 1 | 0.36 | 38 | 13.68 | | | Wickramarathne, T D | c | | 1442 | SRI | 0.50 | 1 | 0.35 | 38 | 13.30 | | | Koggala, W S T D | | | 1488 | SRI | 1.00 | 1 | 0.88 | 38 | 33.44 | | | * 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 Inter Club Women Chess Championship 2019 | Colombo | SRI | 2019-12-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1440 | 1148 | 1.50 | 4 | 0.85 | 38 | 32.30 | |
| | Rathnayake, Jeewanthi | | | 1421 | SRI | 0.50 | 1 | 0.33 | 38 | 12.54 | | | Ramanayake, Nemindi Linaya | | | 1303 | SRI | 0.00 | 1 | -0.29 | 38 | -11.02 | | | Pallie, Ehsha Mishela | | wc | 1528 | SRI | 0.50 | 1 | 0.41 | 38 | 15.58 | | | Sathya, S Promodhi | | | 1509 | SRI | 0.50 | 1 | 0.40 | 38 | 15.20 | |
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) | | | | Sri Lanka Women's National Amateur Chess Championship 2019 | Colombo | SRI | 2019-12-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1290 | 1148 | 6.50 | 9 | 3.53 | 38 | 134.14 | |
| | Jayatilaka, W M M Amodya | | | 1422 | SRI | 0.50 | 1 | 0.33 | 38 | 12.54 | | | Wilvalaarachchi, Oneli Omaya | | | 1340 | SRI | 1.00 | 1 | 0.75 | 38 | 28.50 | | | Gamage, B K Sayumi Hasithma | | | 1061 | SRI | 1.00 | 1 | 0.38 | 38 | 14.44 | | | Wickramarathne, P W G Gaveshi | | | 1231 | SRI | 1.00 | 1 | 0.61 | 38 | 23.18 | | | Kathriarachchi, Dini Nathyaa | | | 1228 | SRI | 1.00 | 1 | 0.61 | 38 | 23.18 | | | Ranasinghe, Shalini | | | 1548 * | SRI | 0.50 | 1 | 0.42 | 38 | 15.96 | | | Attanayake, Chanindi Mewna | | | 1206 | SRI | 1.00 | 1 | 0.58 | 38 | 22.04 | | | Dassanayake, Tharusha Samadhi | | | 1373 | SRI | 0.00 | 1 | -0.22 | 38 | -8.36 | | | Abeysekara, Yasasi Geemini | | | 1199 | SRI | 0.50 | 1 | 0.07 | 38 | 2.66 | | | * 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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