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Individual Calculations January 2019 |
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| Wimalagunasekara, D Nithwara Total change: 17.60 | |   |
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| Ethugalpura International Rating Chess Championship 2018 | Kurunegala | SRI | 2018-12-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1337 | 1089 | 2.00 | 5 | 1.00 | 40 | 40.00 | |
|  Jayasinghe, J A A D K | | | 1334 | SRI | 0.50 | 1 | 0.30 | 40 | 12.00 | |  Rajapaksha, R G R D M | | | 1438 | SRI | 0.00 | 1 | -0.11 | 40 | -4.40 | | | Dalawella, Sanuka Chandul | | | 1361 | SRI | 1.00 | 1 | 0.83 | 40 | 33.20 | | | Soorathissa, S P J M | | | 1223 | SRI | 0.50 | 1 | 0.18 | 40 | 7.20 | | | Thilakarathne, Malidu Amodya | | | 1327 | SRI | 0.00 | 1 | -0.20 | 40 | -8.00 | |
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 |
| 1357 | 1089 | 0.00 | 3 | -0.56 | 40 | -22.40 | |
| | Dahampriya, H K T Dewnethmie | | | 1489 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Kanathipan, Thiruchelvan | | | 1309 | SRI | 0.00 | 1 | -0.22 | 40 | -8.80 | | | Senevirathne, A M L M | | | 1274 | SRI | 0.00 | 1 | -0.26 | 40 | -10.40 | | | * 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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