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Individual Calculations March 2011 |
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| Weerasooriya, J M Total change: -3.50 | |   |
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| 64Squares Chess Challenge - 2011 | Kandy | SRI | 2011-01-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1671 | 1717 | 1.00 | 2 | -0.07 | 25 | -1.75 | |
|  Kumarawansha, H. L. | | | 1375 | SRI | 1.00 | 1 | 0.12 | 25 | 3.00 | | | De Moraes, Shamine | | | 1966 | SRI | 0.00 | 1 | -0.19 | 25 | -4.75 | |
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) | | | | Sri Lanka Junior National Chess Championship 2010 | Colombo | SRI | 2011-01-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1855 | 1717 | 1.00 | 3 | -0.07 | 25 | -1.75 | |
| | Rajapakse, R M C M | | | 2117 * | SRI | 0.50 | 1 | 0.42 | 25 | 10.50 | |  Seneviratne, Shehan Kavishka | | | 1624 | SRI | 0.00 | 1 | -0.63 | 25 | -15.75 | | | Pinto, Semuthu | | | 1823 | SRI | 0.50 | 1 | 0.14 | 25 | 3.50 | | | * 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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