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Individual Calculations June 2023 |
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| Vithanage, P N Total change: 9.20 | |   |
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| Supr Knights Open International Rating Chess Championship 2023 | Colombo | SRI | 2023-04-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1403 | 1074 | 1.50 | 4 | 0.73 | 40 | 29.20 | |
|  Sivathanujan, S | | | 1833 | SRI | 0.00 | 1 | 0.00 | 40 | 0.00 | |  Dharmasena, K Kavinu Ransara | | | 1254 | SRI | 0.00 | 1 | -0.26 | 40 | -10.40 | | | Bandara, L R D B | | | 1251 | SRI | 1.00 | 1 | 0.73 | 40 | 29.20 | | | Sanviru, G H A Dulnith | | | 1272 | SRI | 0.50 | 1 | 0.26 | 40 | 10.40 | |
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) | | | | Colombo International Chess Festival 2023 | Colombo | SRI | 2023-05-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1515 | 1159 | 0.00 | 3 | -0.50 | 40 | -20.00 | |
| | Sivathanujan, S | | | 1809 | SRI | 0.00 | 1 | -0.01 | 40 | -0.40 | | | Perera, H A Lisanda Vinsith | | | 1464 | SRI | 0.00 | 1 | -0.14 | 40 | -5.60 | | | Ashad, Nevan Mishal Mohomed | | | 1271 | SRI | 0.00 | 1 | -0.35 | 40 | -14.00 | |
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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