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Individual Calculations May 2011 |
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| Thilakawardana, Supeshala Total change: 35.10 | |   |
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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 |
| 1872 | 1767 | 1.50 | 5 | -0.32 | 15 | -4.80 | |
|  Weerakoon, D D P | | | 1678 | SRI | 1.00 | 1 | 0.38 | 15 | 5.70 | |  Jayasundara, P K U M | | | 1951 | SRI | 0.00 | 1 | -0.26 | 15 | -3.90 | | | Ranasinghe, S D | | | 1835 | SRI | 0.00 | 1 | -0.41 | 15 | -6.15 | | | Kuruwitage, Yasas Kalana | | | 1925 | SRI | 0.50 | 1 | 0.21 | 15 | 3.15 | | | Singhai, Niklesh Jain | | | 1972 | IND | 0.00 | 1 | -0.24 | 15 | -3.60 | |
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 |
| 1892 | 1767 | 4.50 | 7 | 2.04 | 15 | 30.60 | |
| | Ranasinghe, S D | | | 1835 | SRI | 0.00 | 1 | -0.41 | 15 | -6.15 | | | Basnayake, I U | | | 1811 | SRI | 1.00 | 1 | 0.56 | 15 | 8.40 | | | Premanath, Dinushki | | wf | 1873 | SRI | 0.50 | 1 | 0.14 | 15 | 2.10 | | | Hamid, Rani | | wm | 1997 | BAN | 1.00 | 1 | 0.79 | 15 | 11.85 | | | Siddiqui, Nida Mishraz | | | 1714 | PAK | 1.00 | 1 | 0.43 | 15 | 6.45 | | | Senanayake, P R | | wf | 1847 | SRI | 1.00 | 1 | 0.61 | 15 | 9.15 | | | Shamima, Akter Liza | | wf | 2165 | BAN | 0.00 | 1 | -0.08 | 15 | -1.20 | |
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 Girls Chess Championship 2011 | Colombo | SRI | 2011-04-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1812 | 1767 | 1.50 | 2 | 0.62 | 15 | 9.30 | |
| | Ambanwela, Lumbini | | | 1791 | SRI | 1.00 | 1 | 0.53 | 15 | 7.95 | | | Perera, Anjana | | wc | 1832 | SRI | 0.50 | 1 | 0.09 | 15 | 1.35 | |
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) | | |
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