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Individual Calculations April 2009 |
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| Lasitha, Subash Total change: -8.50 | |   |
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| The Inaugural Royal Challenge International Chess Championship 2009 | Colombo | SRI | 2009-01-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1926 | 1888 | 1.00 | 3 | -0.34 | 25 | -8.50 | |
|  Thilakawardana, Supeshala | | | 1820 | SRI | 1.00 | 1 | 0.41 | 25 | 10.25 | |  Wijekoon, Chandana | | | 1925 | SRI | 0.00 | 1 | -0.45 | 25 | -11.25 | | | Kottahachchy, K.o.v. | | | 2034 | SRI | 0.00 | 1 | -0.30 | 25 | -7.50 | |
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 Open International Rating Chess Tournament 2009 | Kandy | SRI | 2009-03-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2102 | 1888 | 0.50 | 2 | 0.00 | 25 | 0.00 | |
| | Sharma, Dinesh K. | m | | 2238 | IND | 0.00 | 1 | -0.11 | 25 | -2.75 | | | Fernando, J.m.m.p. | | | 1966 | SRI | 0.50 | 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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