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Individual Calculations May 2012 |
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| Welihinda, Ravindu Hansika Total change: 52.50 | |   |
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| Sri Lanka Major Division Chess Championship 2012 Galle | Galle | SRI | 2012-02-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1792 | 1551 | 1.50 | 5 | 0.43 | 30 | 12.90 | |
|  Lamahewa, C | | | 1843 | SRI | 1.00 | 1 | 0.85 | 30 | 25.50 | |  Egodage, Keshan | | | 1784 | SRI | 0.00 | 1 | -0.21 | 30 | -6.30 | | | Thilakarathne, D G D Chamil | | | 1643 | SRI | 0.00 | 1 | -0.37 | 30 | -11.10 | | | Bhagya, Viman | | | 1951 * | SRI | 0.00 | 1 | -0.08 | 30 | -2.40 | | | Ranmith, W S | | | 1738 | SRI | 0.50 | 1 | 0.24 | 30 | 7.20 | | | * 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) | | | | National Youth Chess Championship 2012 Under 14 Open | Colombo | SRI | 2012-04-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1658 | 1551 | 1.00 | 2 | 0.28 | 30 | 8.40 | |
| | Chathuranga, Sachintha | | | 1744 | SRI | 0.50 | 1 | 0.25 | 30 | 7.50 | | | Ranathunga, Vidusha Hirushan | | | 1572 | SRI | 0.50 | 1 | 0.03 | 30 | 0.90 | |
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) | | | | 2nd Dhamso International Chess Festival | Ambalangoda | SRI | 2012-04-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1779 | 1551 | 2.00 | 4 | 1.04 | 30 | 31.20 | |
| | De Silva, Osheen | | | 1889 | SRI | 0.00 | 1 | -0.12 | 30 | -3.60 | | | De Silva, Elath Mathanga | | | 1946 | SRI | 0.00 | 1 | -0.08 | 30 | -2.40 | | | Ranasinghe, P K | | | 1593 | SRI | 1.00 | 1 | 0.56 | 30 | 16.80 | | | Jayalath, Thusitha Kumara | | | 1688 | SRI | 1.00 | 1 | 0.68 | 30 | 20.40 | |
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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