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Individual Calculations July 2010 |
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| Koggala, W S V K Total change: 85.80 | |   |
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| Sri Lanka Major Division Kurunegala Chess Championship 2010 | Kurunegala | SRI | 2010-04-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1852 | 1969 | 2.00 | 3 | 0.03 | 25 | 0.75 | |
|  Subasinghe, K R V R | | | 1876 | SRI | 0.50 | 1 | -0.13 | 25 | -3.25 | | | Dissanayake, R D A C | | | 1786 | SRI | 1.00 | 1 | 0.26 | 25 | 6.50 | |  Randil, Lakshitha | | | 1893 | SRI | 0.50 | 1 | -0.10 | 25 | -2.50 | |
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 | | Sri Lanka National B Chess Championship 2010 | Colombo | SRI | 2010-04-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2009 | 1969 | 6.50 | 9 | 2.50 | 15 | 37.50 | |
| | Harishman, S | | | 1716 | SRI | 1.00 | 1 | 0.19 | 15 | 2.85 | | | Rathnasekara, Abimanyu | | | 1836 | SRI | 1.00 | 1 | 0.32 | 15 | 4.80 | | | Randil, Lakshitha | | | 1893 | SRI | 1.00 | 1 | 0.40 | 15 | 6.00 | | | Athukorala, P M A B | | | 2127 | SRI | 0.50 | 1 | 0.21 | 15 | 3.15 | | | Wijesuriya, G Luxman | | | 2088 | SRI | 1.00 | 1 | 0.66 | 15 | 9.90 | | | Mallawarachchi, T S | | | 2029 | SRI | 1.00 | 1 | 0.58 | 15 | 8.70 | | | Anuruddha, G C | | | 2148 | SRI | 0.50 | 1 | 0.23 | 15 | 3.45 | | | Pieris, T D R | | | 2083 | SRI | 0.00 | 1 | -0.34 | 15 | -5.10 | | | Weerawardane, R | | | 2165 | SRI | 0.50 | 1 | 0.25 | 15 | 3.75 | |
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 | | Sri Lanka National Chess Championship 2010 | Colombo | SRI | 2010-05-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2040 | 1940 | 8.00 | 13 | 3.17 | 15 | 47.55 | |
| | Pieris, T D R | | | 2062 | SRI | 0.00 | 1 | -0.33 | 15 | -4.95 | | | Jayasundara, P K U M | | | 1954 | SRI | 1.00 | 1 | 0.52 | 15 | 7.80 | | | Dissanayake, R S | | | 2030 | SRI | 1.00 | 1 | 0.62 | 15 | 9.30 | | | Perera, W C C | | | 1963 | SRI | 0.00 | 1 | -0.47 | 15 | -7.05 | | | Bandara, P M R L | | | 1995 | SRI | 1.00 | 1 | 0.58 | 15 | 8.70 | | | Anuruddha, G C | | | 2120 | SRI | 1.00 | 1 | 0.74 | 15 | 11.10 | | | Athukorala, P M A B | | | 2127 | SRI | 0.50 | 1 | 0.24 | 15 | 3.60 | | | Russell, M K A | | | 2269 | SRI | 0.00 | 1 | -0.12 | 15 | -1.80 | | | Wijekoon, Chandana | | | 1958 | SRI | 1.00 | 1 | 0.53 | 15 | 7.95 | | | Amarasena, Kaveesha | | | 1926 | SRI | 1.00 | 1 | 0.48 | 15 | 7.20 | | | Peiris, T S S | | | 2003 | SRI | 0.50 | 1 | 0.09 | 15 | 1.35 | | | Weerawardane, R | | | 2165 | SRI | 0.00 | 1 | -0.22 | 15 | -3.30 | | | De Silva, Osheen | | | 1948 | SRI | 1.00 | 1 | 0.51 | 15 | 7.65 | |
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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