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Individual Calculations January 2020 |
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| Gunawardana, I M T M Total change: -38.60 | |   |
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| 11th Ethugalpura International Chess Championship 2019 | Kurunegala | SRI | 2019-11-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1250 | 1458 | 4.50 | 8 | -1.44 | 20 | -28.80 | |
|  Bandaranayake, H B M N | | | 1121 | SRI | 1.00 | 1 | 0.12 | 20 | 2.40 | |  Dassanayake, D M G S | | | 1858 * | SRI | 0.50 | 1 | 0.42 | 20 | 8.40 | | | Basnayake, B M Thesandu Aken | | | 1356 | SRI | 0.50 | 1 | -0.14 | 20 | -2.80 | | | Herath, H M J R | | | 1214 | SRI | 0.00 | 1 | -0.80 | 20 | -16.00 | | | Jayashanka, S A D Sadeepa | | | 1084 | SRI | 1.00 | 1 | 0.10 | 20 | 2.00 | | | Weerawardana, Oneli Vihanga | | | 1148 | SRI | 0.50 | 1 | -0.36 | 20 | -7.20 | | | Thisera, I G T G | | | 1152 | SRI | 0.00 | 1 | -0.86 | 20 | -17.20 | | | Rajapaksha, Dulitha K | | | 1066 | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | * 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 |
| 1485 | 1458 | 2.00 | 4 | 0.09 | 20 | 1.80 | |
| | De Silva, Tenara | | | 1858 * | SRI | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Gamage, Chanithma Lakdinee G | | | 1058 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Koswatte, C T | | | 1793 | SRI | 0.50 | 1 | 0.38 | 20 | 7.60 | | | Wickramarathne, P W G Gaveshi | | | 1231 | SRI | 0.50 | 1 | -0.29 | 20 | -5.80 | | | * 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 |
| 1256 | 1458 | 6.00 | 9 | -0.58 | 20 | -11.60 | |
| | Nagasinghe, Seniru Ranuth | | | 1058 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Jayasundara, J M Daham V | | | 1161 | SRI | 0.50 | 1 | -0.35 | 20 | -7.00 | | | Chamika, R A Binul | | | 1154 | SRI | 1.00 | 1 | 0.14 | 20 | 2.80 | | | Liyanage, Pesandu Rashmitha | | | 1555 | SRI | 0.00 | 1 | -0.37 | 20 | -7.40 | | | Gunawardena, Anuth Methvin | | | 1083 | SRI | 1.00 | 1 | 0.09 | 20 | 1.80 | | | Kathriarachchi, Dini Nathyaa | | | 1228 | SRI | 1.00 | 1 | 0.21 | 20 | 4.20 | | | Fernando, J M Marlon P | | | 1599 | SRI | 0.00 | 1 | -0.31 | 20 | -6.20 | | | Piyumanthi, M Sayumi Vimansa | | | 1250 | SRI | 0.50 | 1 | -0.27 | 20 | -5.40 | | | Bandara, Viduna Lewke | | | 1220 | SRI | 1.00 | 1 | 0.20 | 20 | 4.00 | | | * 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) | | |
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