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Individual Calculations April 2009 |
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| Jayaratne, J.p.d.s. Total change: 0.00 | |   |
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| The Inaugural Royal Challenge International Chess Championship 2009 | Colombo | SRI | 2009-01-10 |
| Rc | Ro | w | n | change | Rp | K | K*chg | Game |
| 1948 | 0 | 1.50 | 6 | 0.00 | 1755 | | 0.00 | |
|  De Silva, Osheen | | | 2016 | SRI | 0.00 | 1 | 0.00 | | 0.00 | | | Sharma, Kushagra | | | 1762 | IND | 0.50 | 1 | 0.00 | | 0.00 | | | Lasitha, Subash | | | 1888 | SRI | 0.50 | 1 | 0.00 | | 0.00 | |  Peiris, T.g.m. | | | 2133 | SRI | 0.00 | 1 | 0.00 | | 0.00 | | | Ketalawala, J.k.c. | | | 2033 | SRI | 0.00 | 1 | 0.00 | | 0.00 | | | Seneviratne, Malinda | | | 1853 | SRI | 0.50 | 1 | 0.00 | | 0.00 | |
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) | | | | Sri Lanka Open International Rating Chess Tournament 2009 | Kandy | SRI | 2009-03-06 |
| Rc | Ro | w | n | change | Rp | K | K*chg | Game |
| 1962 | 0 | 1.00 | 5 | 0.00 | 1722 | | 0.00 | |
| | Peiris, T.g.m. | | | 2133 | SRI | 0.00 | 1 | 0.00 | | 0.00 | | | Subash, Lasitha | | | 1888 | SRI | 0.00 | 1 | 0.00 | | 0.00 | | | Tennakoon, I.l.k. | | | 1990 | SRI | 0.50 | 1 | 0.00 | | 0.00 | | | De Moraes, Shamine | | | 1963 | SRI | 0.50 | 1 | 0.00 | | 0.00 | | | Perera, Anjana | | | 1835 | SRI | 0.00 | 1 | 0.00 | | 0.00 | |
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) | | |
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