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Individual Calculations May 2011 |
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| Premanath, Dinushki Total change: 7.05 | |   |
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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 |
| 1739 | 1873 | 4.50 | 7 | -0.17 | 15 | -2.55 | |
|  Vishnu, Prasanna V | m | | 2273 * | IND | 0.00 | 1 | -0.08 | 15 | -1.20 | |  Gamage, Chathulanka | | | 1600 | SRI | 0.50 | 1 | -0.33 | 15 | -4.95 | | | Hasanthaka, Nimasha Chamira | | | 1514 | SRI | 1.00 | 1 | 0.10 | 15 | 1.50 | | | Jayaratne, J P S S | | | 1508 | SRI | 1.00 | 1 | 0.10 | 15 | 1.50 | | | Egodage, Keshan | | | 1795 | SRI | 0.50 | 1 | -0.11 | 15 | -1.65 | | | Jayanka, L P P R | | | 1711 | SRI | 1.00 | 1 | 0.29 | 15 | 4.35 | | | Wettasinha, Vasanta | | | 1772 | SRI | 0.50 | 1 | -0.14 | 15 | -2.10 | | | * 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) | | | | Asian Zonal Women 2011, Zone 3.2 FIDE | Colombo | SRI | 2011-03-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1877 | 1873 | 4.00 | 7 | 0.49 | 15 | 7.35 | |
| | Hamid, Rani | | wm | 1997 | BAN | 0.50 | 1 | 0.17 | 15 | 2.55 | | | Siddiqui, Nida Mishraz | | | 1714 | PAK | 1.00 | 1 | 0.29 | 15 | 4.35 | | | Senanayake, P R | | wf | 1847 | SRI | 0.50 | 1 | -0.04 | 15 | -0.60 | | | Thilakawardana, Supeshala | | wf | 1767 | SRI | 0.50 | 1 | -0.14 | 15 | -2.10 | | | Shamima, Akter Liza | | wf | 2165 | BAN | 0.00 | 1 | -0.15 | 15 | -2.25 | | | Ranasinghe, S D | | | 1835 | SRI | 0.50 | 1 | -0.05 | 15 | -0.75 | | | Basnayake, I U | | | 1811 | SRI | 1.00 | 1 | 0.41 | 15 | 6.15 | |
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 16 Girls Chess Championship 2011 | Colombo | SRI | 2011-04-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1655 | 1873 | 4.00 | 5 | 0.15 | 15 | 2.25 | |
| | Sathya, S Promodhi | | | 1635 | SRI | 0.50 | 1 | -0.30 | 15 | -4.50 | | | Senarat, Kavindi | | | 1612 | SRI | 1.00 | 1 | 0.18 | 15 | 2.70 | | | Basnayake, I U | | | 1811 | SRI | 1.00 | 1 | 0.41 | 15 | 6.15 | | | Lamawansa, Yashmi | | | 1657 | SRI | 1.00 | 1 | 0.22 | 15 | 3.30 | | | Gimhani, H Shashipraba | | | 1559 | SRI | 0.50 | 1 | -0.36 | 15 | -5.40 | |
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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