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Individual Calculations May 2012 |
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| De Silva, Shelani Total change: 75.30 | |   |
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| Sri Lanka Major Division Chess Championship 2012 Colombo | Colombo | SRI | 2012-02-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1800 | 1565 | 2.00 | 5 | 0.94 | 30 | 28.20 | |
|  Yaparathne, B K B | | | 1787 | SRI | 1.00 | 1 | 0.78 | 30 | 23.40 | | | Kumara, Sisira | | | 1769 | SRI | 0.00 | 1 | -0.24 | 30 | -7.20 | |  Viththiyatharan, S | | | 1700 | SRI | 1.00 | 1 | 0.68 | 30 | 20.40 | | | Madumadha, M Chaithika Samith | | | 1859 | SRI | 0.00 | 1 | -0.15 | 30 | -4.50 | | | Liyanapathirana, Kasun | | | 1886 | SRI | 0.00 | 1 | -0.13 | 30 | -3.90 | |
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) | | | NOTE: K factor changed | | Sri Lanka Women's National B Chess Championship 2012 | Colombo | SRI | 2012-03-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1639 | 1559 | 3.50 | 6 | 1.14 | 15 | 17.10 | |
| | Viththiyarani, S | | | 1795 | SRI | 1.00 | 1 | 0.80 | 15 | 12.00 | | | Perera, Panchali | | | 1685 | SRI | 0.00 | 1 | -0.33 | 15 | -4.95 | | | Chankamie, M.k.t. | | | 1629 | SRI | 1.00 | 1 | 0.60 | 15 | 9.00 | | | Rajapakshe, Nuwanthi Dileka | | | 1480 | SRI | 0.00 | 1 | -0.61 | 15 | -9.15 | | | Senarath, Kavindi | | | 1615 | SRI | 0.50 | 1 | 0.08 | 15 | 1.20 | | | Gimhani, H. Shashipraba | | | 1629 | SRI | 1.00 | 1 | 0.60 | 15 | 9.00 | |
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) | | | NOTE: K factor changed | | Sri Lanka Women's National Chess Championship 2012 | Colombo | SRI | 2012-03-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1707 | 1559 | 4.00 | 13 | -0.11 | 15 | -1.65 | |
| | Gunaratne, Manisha Suchini | | | 1566 | SRI | 0.00 | 1 | -0.49 | 15 | -7.35 | | | Nawaratne, Malithi | | | 1558 | SRI | 0.50 | 1 | 0.00 | 15 | 0.00 | | | Chankamie, M K T | | | 1629 | SRI | 0.50 | 1 | 0.10 | 15 | 1.50 | | | Sumithrarachchi, Sayuri | | | 1576 | SRI | 0.00 | 1 | -0.48 | 15 | -7.20 | | | Premanath, Dinushki | | wf | 1881 | SRI | 0.50 | 1 | 0.37 | 15 | 5.55 | | | Jayathilake, Mihirani | | | 1698 | SRI | 0.50 | 1 | 0.19 | 15 | 2.85 | | | Kahanda, I D S | | | 1631 | SRI | 1.00 | 1 | 0.60 | 15 | 9.00 | | | Methmali, Y | | | 1798 | SRI | 0.00 | 1 | -0.20 | 15 | -3.00 | | | Ranasinghe, S D | | wm | 1913 | SRI | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Basnayake, I U | | | 1799 | SRI | 0.50 | 1 | 0.30 | 15 | 4.50 | | | Chandrasiri, S A K | | | 1668 | SRI | 0.50 | 1 | 0.15 | 15 | 2.25 | | | Senanayake, P R | | wf | 1788 | SRI | 0.00 | 1 | -0.21 | 15 | -3.15 | | | Perera, Panchali | | | 1685 | SRI | 0.00 | 1 | -0.33 | 15 | -4.95 | |
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) | | | NOTE: K factor changed | | National Youth Chess Championship 2012 Under 16 Girls | Colombo | SRI | 2012-04-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1643 | 1559 | 2.00 | 4 | 0.45 | 15 | 6.75 | |
| | Yashora, Tiumi | | | 1747 | SRI | 1.00 | 1 | 0.74 | 15 | 11.10 | | | Koggala, W S T D | | | 1629 | SRI | 1.00 | 1 | 0.60 | 15 | 9.00 | | | Chankamie, M K T | | | 1629 | SRI | 0.00 | 1 | -0.40 | 15 | -6.00 | | | Gunaratne, Manisha Suchini | | | 1566 | SRI | 0.00 | 1 | -0.49 | 15 | -7.35 | |
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) | | | NOTE: K factor changed | | 2nd Dhamso International Chess Festival | Ambalangoda | SRI | 2012-04-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1841 | 1559 | 2.50 | 5 | 1.66 | 15 | 24.90 | |
| | Amarakoon, Naditha | | | 1903 | SRI | 0.50 | 1 | 0.38 | 15 | 5.70 | | | Sanali, W A Nathasha | | | 1724 | SRI | 1.00 | 1 | 0.72 | 15 | 10.80 | | | De Silva, Osheen | | | 1889 | SRI | 0.00 | 1 | -0.12 | 15 | -1.80 | | | Fernando, J M M P | | | 1858 | SRI | 0.00 | 1 | -0.15 | 15 | -2.25 | | | Lasitha, Subash | | | 1832 | SRI | 1.00 | 1 | 0.83 | 15 | 12.45 | |
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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