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Individual Calculations May 2011 |
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| Egodage, Keshan Total change: -2.55 | |   |
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| Sri Lanka Open International Rating Tournament 2011 | Colombo | SRI | 2011-03-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1763 | 1795 | 3.00 | 5 | 0.39 | 15 | 5.85 | |
|  Dissanayake, R S | | | 2021 | SRI | 0.50 | 1 | 0.29 | 15 | 4.35 | |  Kuruwitage, Yasas Kalana | | | 1925 | SRI | 0.00 | 1 | -0.32 | 15 | -4.80 | | | Perera, B S | | | 1552 | SRI | 1.00 | 1 | 0.20 | 15 | 3.00 | | | Premanath, Dinushki | | wf | 1873 | SRI | 0.50 | 1 | 0.11 | 15 | 1.65 | | | Herath, H G Anuja Probodhana | | | 1446 | SRI | 1.00 | 1 | 0.11 | 15 | 1.65 | |
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 National Youth Under 18 Chess Championship 2011 | Colombo | SRI | 2011-04-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1883 | 1795 | 1.00 | 4 | -0.56 | 15 | -8.40 | |
| | Perera, W C C | | | 2077 | SRI | 0.00 | 1 | -0.16 | 15 | -2.40 | | | Weerasooriya, J M | | | 1714 | SRI | 1.00 | 1 | 0.39 | 15 | 5.85 | | | Samarakoon, U L | | | 1889 | SRI | 0.00 | 1 | -0.37 | 15 | -5.55 | | | Jayasuriya, Dinushka | | | 1851 | SRI | 0.00 | 1 | -0.42 | 15 | -6.30 | |
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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