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Individual Calculations February 2023 |
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| Siriwardene, R B Sithum Nevanjith Total change: 22.40 | |   |
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| Kandy Open International Rating Chess Championships 2022 | Kandy | SRI | 2022-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1304 | 1171 | 2.00 | 5 | -0.11 | 40 | -4.40 | |
|  Bandara, Dhanushka | | | 1852 | SRI | 0.00 | 1 | -0.01 | 40 | -0.40 | | | Jayasinghe, D Senethmi | | | 1045 | SRI | 0.50 | 1 | -0.17 | 40 | -6.80 | |  Amarathunga, H G Gayuni Hansali | | | 1012 | SRI | 1.00 | 1 | 0.29 | 40 | 11.60 | | | Jayalath, Thusitha Kumara | | | 1520 | SRI | 0.00 | 1 | -0.11 | 40 | -4.40 | | | Vishaleni, U | | | 1091 | SRI | 0.50 | 1 | -0.11 | 40 | -4.40 | |
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 District Youth Chess Championships 2023 - Under 14 | Dehiwala | SRI | 2023-01-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1047 | 1171 | 2.00 | 2 | 0.67 | 40 | 26.80 | |
| | Nagahawatta, Sachin Devinda | | | 1028 | SRI | 1.00 | 1 | 0.31 | 40 | 12.40 | | | Methan, Sritharan | | | 1065 | SRI | 1.00 | 1 | 0.36 | 40 | 14.40 | |
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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