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Individual Calculations August 2023 |
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| De Silva, Osheen Total change: -17.80 | |   |
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| Sri Lanka Open Chess Championship 2023 | Colombo | SRI | 2023-06-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1407 | 1689 | 5.50 | 8 | -0.89 | 20 | -17.80 | |
|  Ratnayake, Rivinu Dulnith | | | 1148 | SRI | 0.50 | 1 | -0.47 | 20 | -9.40 | |  Fernando, B Thisula Dewsarana | | | 1289 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Nandasiri, Omiru | | | 1274 | SRI | 1.00 | 1 | 0.07 | 20 | 1.40 | | | Kulathilake, S M M P | | | 1463 | SRI | 1.00 | 1 | 0.21 | 20 | 4.20 | | | Gamage, Ovin Vidmal | | | 1568 | SRI | 0.50 | 1 | -0.16 | 20 | -3.20 | | | Labunahewage, Dulein Bimsath | | | 1339 | SRI | 1.00 | 1 | 0.11 | 20 | 2.20 | | | Sathmina, S L Lalindu | | | 1418 | SRI | 0.50 | 1 | -0.33 | 20 | -6.60 | | | Alahakoon, Isuru | f | | 1760 | SRI | 0.00 | 1 | -0.40 | 20 | -8.00 | | | * 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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