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Individual Calculations January 2011 |
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| Lamahewa, C Total change: 26.75 | |   |
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| 6th Asian Schools Under 15 Chess Championship 2010 | Colombo | SRI | 2010-12-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1822 | 1810 | 3.50 | 6 | 0.58 | 25 | 14.50 | |
|  Jayasundara, P K U M | | | 1963 | SRI | 0.00 | 1 | -0.30 | 25 | -7.50 | |  Walid, Anwar | | | 1742 | UAE | 1.00 | 1 | 0.41 | 25 | 10.25 | | | Doluweera, Dinul Thisura | | | 1787 | SRI | 1.00 | 1 | 0.47 | 25 | 11.75 | | | Kumara, C M S Praneeth | | | 1848 | SRI | 1.00 | 1 | 0.55 | 25 | 13.75 | | | Dissanayake, R D A C | | | 1799 | SRI | 0.00 | 1 | -0.52 | 25 | -13.00 | | | Munasinghe, Dgsd | | | 1792 | SRI | 0.50 | 1 | -0.03 | 25 | -0.75 | |
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) | | | | 2nd Ethugalpura Chess Challenge 2010 | Kurunegala | SRI | 2010-12-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2088 | 1810 | 1.00 | 3 | 0.49 | 25 | 12.25 | |
| | Koggala, W S V K | | | 2038 | SRI | 0.50 | 1 | 0.29 | 25 | 7.25 | | | Kurukulasuriya, Prasanna | | | 2061 | SRI | 0.50 | 1 | 0.31 | 25 | 7.75 | | | Weerawardane, R | | | 2164 | SRI | 0.00 | 1 | -0.11 | 25 | -2.75 | |
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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