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Individual Calculations February 2023 |
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| Amarathunga, H G K G Total change: -6.00 | |   |
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| Ethugalpura Open International Rating Chess Championships 2022 | Kurunegala | SRI | 2022-12-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1280 | 1085 | 1.50 | 4 | 0.44 | 40 | 17.60 | |
|  Dissanayake, D M Madushan Sameera | | | 1278 | SRI | 0.00 | 1 | -0.25 | 40 | -10.00 | | | Arachchi, C S A | | | 1470 | SRI | 0.50 | 1 | 0.41 | 40 | 16.40 | | | Shagiththiah, K | | | 1162 | SRI | 0.50 | 1 | 0.11 | 40 | 4.40 | | | Herath, H M D L | | | 1209 | SRI | 0.50 | 1 | 0.17 | 40 | 6.80 | |
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) | | | | Kandy Open International Rating Chess Championships 2022 | Kandy | SRI | 2022-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1379 | 1085 | 0.00 | 3 | -0.59 | 40 | -23.60 | |
| | Lakshitha, H H Sasindu | | | 1624 | SRI | 0.00 | 1 | -0.03 | 40 | -1.20 | |  Akuratiya, A G Javindi Avarjana | | | 1308 | SRI | 0.00 | 1 | -0.22 | 40 | -8.80 | | | Pathirana, W P Keshara Viraj | | | 1206 | SRI | 0.00 | 1 | -0.34 | 40 | -13.60 | |
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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