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Individual Calculations March 2010 |
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| Liyanapathirana, Pasan Vindula Total change: 6.00 | |   |
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| Ethugalpura Chess Challenge | Kurunegala, Sri Lanka | SRI | 2009-12-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1875 | 1835 | 1.50 | 3 | 0.16 | 15 | 2.40 | |
|  Perera, W C C | | | 1937 | SRI | 0.00 | 1 | -0.36 | 15 | -5.40 | |  Hapuarachchi, H L M | | | 2019 | SRI | 0.50 | 1 | 0.24 | 15 | 3.60 | | | Jayawardhana, W A S H | | | 1669 | SRI | 1.00 | 1 | 0.28 | 15 | 4.20 | |
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) | | | | 3rd Colombo International Chess Festival 2010 | Colombo | SRI | 2010-01-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1985 | 1835 | 0.50 | 4 | -0.69 | 15 | -10.35 | |
| | Mitali, Madhukar Patil | | wf | 1998 | IND | 0.00 | 1 | -0.28 | 15 | -4.20 | | | Jayawardena, M | | | 1960 | SRI | 0.50 | 1 | 0.17 | 15 | 2.55 | | | Jain Singhai, Niklesh N | | | 1966 | IND | 0.00 | 1 | -0.32 | 15 | -4.80 | | | Peiris, T S S | | | 2016 | SRI | 0.00 | 1 | -0.26 | 15 | -3.90 | |
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) | | | | Sri Lanka Inter Clubs Super League Chess Championship | Colombo | SRI | 2010-02-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1887 | 1835 | 3.50 | 6 | 0.93 | 15 | 13.95 | |
| | Athavan, R K | | | 1938 | SRI | 1.00 | 1 | 0.64 | 15 | 9.60 | | | Lamahewa, S | | | 1892 | SRI | 1.00 | 1 | 0.58 | 15 | 8.70 | | | Amarasena, Kaveesha | | | 1910 | SRI | 0.00 | 1 | -0.40 | 15 | -6.00 | | | Rajapakse, R M T C | | | 1673 | SRI | 1.00 | 1 | 0.29 | 15 | 4.35 | | | Saranga, N C O | | | 1969 | SRI | 0.00 | 1 | -0.32 | 15 | -4.80 | | | Alahakoon, Isuru | | | 1938 | SRI | 0.50 | 1 | 0.14 | 15 | 2.10 | |
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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