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Individual Calculations July 2010 |
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| Kumara, C M S Praneeth Total change: 94.30 | |   |
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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 |
| 1880 | 1739 | 1.50 | 3 | 0.56 | 25 | 14.00 | |
|  Kethalawala, J K C | | | 1927 | SRI | 0.00 | 1 | -0.26 | 25 | -6.50 | |  Liyanage, N P | | | 1928 | SRI | 0.50 | 1 | 0.25 | 25 | 6.25 | | | Dissanayake, R D A C | | | 1786 | SRI | 1.00 | 1 | 0.57 | 25 | 14.25 | |
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) | | | | Sri Lanka National B Chess Championship 2010 | Colombo | SRI | 2010-04-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1951 | 1739 | 5.50 | 10 | 3.14 | 25 | 78.50 | |
| | Perera, L N | | | 1982 | SRI | 1.00 | 1 | 0.80 | 25 | 20.00 | | | Bandara, P M R L | | | 1995 | SRI | 0.50 | 1 | 0.31 | 25 | 7.75 | | | Peiris, T S S | | | 2003 | SRI | 0.00 | 1 | -0.18 | 25 | -4.50 | | | Amarasinghe, A A C B | | | 1943 | SRI | 1.00 | 1 | 0.76 | 25 | 19.00 | | | Kottahachchy, K O V | | | 2017 | SRI | 0.50 | 1 | 0.33 | 25 | 8.25 | | | Munasinghe, Lahiru | | | 1949 | SRI | 1.00 | 1 | 0.77 | 25 | 19.25 | | | Wijekoon, Chandana | | | 1961 | SRI | 0.00 | 1 | -0.22 | 25 | -5.50 | | | Bhagya, Viman | | | 1992 | SRI | 0.00 | 1 | -0.19 | 25 | -4.75 | | | Dissanayake, R D A C | | | 1786 | SRI | 0.50 | 1 | 0.07 | 25 | 1.75 | | | Hirimburegama, Yasith | | | 1884 | SRI | 1.00 | 1 | 0.69 | 25 | 17.25 | |
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 | | 1st Kandy Open Chess Championship 2010 | Kandy | SRI | 2010-05-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1974 | 1739 | 1.00 | 4 | 0.12 | 15 | 1.80 | |
| | Gunasekaran, K | | | 2139 * | IND | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Premachandra, G T D | | | 1906 | SRI | 0.50 | 1 | 0.22 | 15 | 3.30 | | | Kuruwitage, Yasas Kalana | | | 1926 | SRI | 0.50 | 1 | 0.24 | 15 | 3.60 | | | Chandrarathne, W S N | | | 1924 | SRI | 0.00 | 1 | -0.26 | 15 | -3.90 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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