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Individual Calculations June 2023 |
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| Sahabandu, Viduni Dinara Total change: 0.00 | |   |
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| Supr Knights Open International Rating Chess Championship 2023 | Colombo | SRI | 2023-04-01 |
| Rc | Ro | w | n | change | Rp | K | K*chg | Game |
| 1118 | 0 | 0.50 | 5 | 0.00 | 752 | | 0.00 | |
|  Karunasena, A P Chenitha S D | | | 1154 | SRI | 0.00 | 1 | 0.00 | | 0.00 | | | Suraweera, Shanul Nethru | | | 1106 | SRI | 0.50 | 1 | 0.00 | | 0.00 | |  Nirwan, G L S P | | | 1136 | SRI | 0.00 | 1 | 0.00 | | 0.00 | | | Hidurangala, H D Binuri Dulanga | | | 1088 | SRI | 0.00 | 1 | 0.00 | | 0.00 | | | Ovitigala, Dehain Nethvidu | | | 1108 | SRI | 0.00 | 1 | 0.00 | | 0.00 | |
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) | | | | Sri Lanka National Youth Chess Championship 2022 - Under 12Yrs Girls | Colombo | SRI | 2023-04-06 |
| Rc | Ro | w | n | change | Rp | K | K*chg | Game |
| 1098 | 0 | 0.50 | 4 | 0.00 | 776 | | 0.00 | |
| | Premathilaka, G M Dimathi Dasunya | | | 1073 | SRI | 0.50 | 1 | 0.00 | | 0.00 | | | Abeyrathne, M P Dulansa Dewmini | | | 1156 | SRI | 0.00 | 1 | 0.00 | | 0.00 | | | Thewmali, R K Nuthara | | | 1059 | SRI | 0.00 | 1 | 0.00 | | 0.00 | | | Jayamanna, Janudi | | | 1105 | SRI | 0.00 | 1 | 0.00 | | 0.00 | |
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) | | | | Colombo International Chess Festival 2023 | Colombo | SRI | 2023-05-12 |
| Rc | Ro | w | n | change | Rp | K | K*chg | Game |
| 1069 | 0 | 1.00 | 3 | 0.00 | 944 | | 0.00 | |
| | Ovitigala, Dehain Nethvidu | | | 1108 | SRI | 0.00 | 1 | 0.00 | | 0.00 | | | Jayaweera, Risali Lohasna | | | 1061 | SRI | 0.00 | 1 | 0.00 | | 0.00 | | | Raheem, Malik | | | 1037 | SRI | 1.00 | 1 | 0.00 | | 0.00 | |
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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