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Individual Calculations January 2019 |
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| Perera, S D Lahiru Total change: 58.80 | |   |
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| Kolonnawa Chess Classic 2018 | Colombo | SRI | 2018-12-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1332 | 1274 | 4.00 | 6 | 1.47 | 40 | 58.80 | |
|  Samarakoon, Rashmi Vihara | | | 1018 | SRI | 1.00 | 1 | 0.19 | 40 | 7.60 | |  Gunawardena, Anuth Methvin | | | 1070 | SRI | 1.00 | 1 | 0.24 | 40 | 9.60 | | | Nethsara, W M Daham | | | 1496 | SRI | 0.50 | 1 | 0.28 | 40 | 11.20 | | | Sandaruwan, M G Ravindu | | | 1487 | SRI | 1.00 | 1 | 0.77 | 40 | 30.80 | | | Samaraweera, Dimuth Indeepa | | | 1437 | SRI | 0.50 | 1 | 0.22 | 40 | 8.80 | | | Perera, D Upashan L | | | 1486 | SRI | 0.00 | 1 | -0.23 | 40 | -9.20 | |
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) | | |
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