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Individual Calculations April 2009 |
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| Munasinghe, Lahiru Total change: 59.70 | |   |
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| The Inaugural Royal Challenge International Chess Championship 2009 | Colombo | SRI | 2009-01-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2086 | 1860 | 3.50 | 6 | 2.16 | 25 | 54.00 | |
|  Kottahachchy, K.o.v. | | | 2034 | SRI | 0.00 | 1 | -0.27 | 25 | -6.75 | | | Kalugampitiya, R.s. | | | 2115 | SRI | 1.00 | 1 | 0.81 | 25 | 20.25 | |  Alahakoon, Isuru | | | 1977 | SRI | 1.00 | 1 | 0.66 | 25 | 16.50 | | | Dissanayake, R.s. | | | 2045 | SRI | 1.00 | 1 | 0.74 | 25 | 18.50 | | | Russell, M.k.a. | | | 2209 | SRI | 0.00 | 1 | -0.11 | 25 | -2.75 | | | Peiris, T.g.m. | | | 2133 | SRI | 0.50 | 1 | 0.33 | 25 | 8.25 | |
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 Colombo Chess Festival '09 | Colombo | SRI | 2009-02-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2099 | 1860 | 1.00 | 3 | 0.38 | 15 | 5.70 | |
| | Anududdha, Chinthaka | | | 2173 | SRI | 0.00 | 1 | -0.14 | 15 | -2.10 | | | Mallawarachchi, T.s. | | | 2091 | SRI | 0.00 | 1 | -0.21 | 15 | -3.15 | | | Ketalawala, J.k.c. | | | 2033 | SRI | 1.00 | 1 | 0.73 | 15 | 10.95 | |
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) | | |
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