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Individual Calculations August 2023 |
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| Siriwardene, R B Bihandu Janandit Total change: -20.40 | |   |
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| Sri Lanka Open Chess Championship 2023 | Colombo | SRI | 2023-06-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1209 | 1203 | 2.00 | 5 | -0.51 | 40 | -20.40 | |
|  Amarathunga, Kosala Sandeepa Cham | | | 1468 | SRI | 0.00 | 1 | -0.18 | 40 | -7.20 | | | Lakshitha, H H Sasindu | | | 1459 | SRI | 0.00 | 1 | -0.19 | 40 | -7.60 | |  Perera, G G U Nawathma | | | 1017 | SRI | 1.00 | 1 | 0.26 | 40 | 10.40 | | | Nilupul, P Hasith | | | 1085 | SRI | 0.00 | 1 | -0.66 | 40 | -26.40 | | | Lakshitha, K Priyan | | | 1018 | SRI | 1.00 | 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) | | |
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