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Individual Calculations February 2023 |
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| De Silva, K H Kalpa Total change: 2.80 | |   |
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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 |
| 1341 | 1128 | 1.00 | 4 | 0.07 | 40 | 2.80 | |
|  Amarathunga, Kosala Sandeepa Cham | | | 1423 | SRI | 0.00 | 1 | -0.15 | 40 | -6.00 | |  Bandara, Prathibha Nethsarani | | | 1285 | SRI | 1.00 | 1 | 0.71 | 40 | 28.40 | | | Dharmasena, W M S S B | | | 1379 | SRI | 0.00 | 1 | -0.19 | 40 | -7.60 | | | Herath, H M J R | | | 1278 | SRI | 0.00 | 1 | -0.30 | 40 | -12.00 | |
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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