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Individual Calculations January 2019 |
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| Sandanayake, Dehansa Nisanduni Total change: -10.80 | |   |
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| Ethugalpura International Rating Chess Championship 2018 | Kurunegala | SRI | 2018-12-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1353 | 1149 | 0.50 | 3 | -0.38 | 40 | -15.20 | |
|  Rajakaruna, R H M I D | | | 1504 | SRI | 0.00 | 1 | -0.11 | 40 | -4.40 | | | Dissanayake, E M T N | | | 1007 | SRI | 0.50 | 1 | -0.19 | 40 | -7.60 | | | Thenuwara, Rashmika | | | 1548 | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | |
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) | | | | Kolonnawa Chess Classic 2018 | Colombo | SRI | 2018-12-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1202 | 1149 | 1.00 | 2 | 0.11 | 40 | 4.40 | |
| | Sanudula, K M Dahamdi | | wc | 1394 | SRI | 0.00 | 1 | -0.20 | 40 | -8.00 | | | Senevirathne, G R Lakmin | | | 1010 | SRI | 1.00 | 1 | 0.31 | 40 | 12.40 | |
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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