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Individual Calculations January 2019 |
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| Fonseka, Waranakulasuriya Chan Ch Total change: -10.00 | |   |
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| Ethugalpura International Rating Chess Championship 2018 | Kurunegala | SRI | 2018-12-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1207 | 1286 | 5.00 | 8 | 0.15 | 20 | 3.00 | |
|  Hiyarapitiya, D S | | | 1076 | SRI | 1.00 | 1 | 0.23 | 20 | 4.60 | |  Gunasekara, W A N Senpathi | | | 1555 | SRI | 0.00 | 1 | -0.17 | 20 | -3.40 | | | Ranasinghe, R A S C | | | 1053 | SRI | 0.50 | 1 | -0.29 | 20 | -5.80 | | | Viduranga, Oshadha | | | 1062 | SRI | 1.00 | 1 | 0.22 | 20 | 4.40 | | | Liyanage, L D S | | | 1143 | SRI | 1.00 | 1 | 0.31 | 20 | 6.20 | | | Kiriella, K G T S D | | | 1570 | SRI | 0.00 | 1 | -0.16 | 20 | -3.20 | | | De Silva, L H L Manuja Lakshitha | | | 1102 | SRI | 0.50 | 1 | -0.24 | 20 | -4.80 | | | Sandanayake, Nimansa Sasanduni | | | 1096 | SRI | 1.00 | 1 | 0.25 | 20 | 5.00 | |
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) | | | | Kolonnawa Chess Classic 2018 | Colombo | SRI | 2018-12-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1164 | 1286 | 4.00 | 7 | -0.65 | 20 | -13.00 | |
| | Dahanayake, Isara Banidu | c | | 1575 | SRI | 0.00 | 1 | -0.16 | 20 | -3.20 | | | Gunawardena, Anuth Methvin | | | 1070 | SRI | 0.50 | 1 | -0.28 | 20 | -5.60 | | | Perera, G Poorna Udara Dhananjay | | | 1091 | SRI | 0.00 | 1 | -0.75 | 20 | -15.00 | | | Atulugamage, Saniru Lohan | | | 1082 | SRI | 1.00 | 1 | 0.24 | 20 | 4.80 | | | Lavanga, D Binuka | | | 1093 | SRI | 0.50 | 1 | -0.25 | 20 | -5.00 | | | Mahamalage, Anuja Devaka | | | 1095 | SRI | 1.00 | 1 | 0.25 | 20 | 5.00 | | | Wickramarathne, P W G Gaveshi | | | 1140 | SRI | 1.00 | 1 | 0.30 | 20 | 6.00 | |
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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