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Individual Calculations February 2023 |
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| Bandara, K M W G Lahiru Total change: 63.20 | |   |
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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 |
| 1231 | 1198 | 3.00 | 5 | 0.62 | 40 | 24.80 | |
|  Arachchi, C S A | | | 1470 | SRI | 1.00 | 1 | 0.83 | 40 | 33.20 | |  Marapana, Sanupa Bimsath | | | 1550 | SRI | 0.00 | 1 | -0.11 | 40 | -4.40 | | | Gunasekara, Aritha Chanthula Abes | | | 1079 | SRI | 0.50 | 1 | -0.16 | 40 | -6.40 | | | Dharmawansa, S S | | | 1045 | SRI | 0.50 | 1 | -0.20 | 40 | -8.00 | | | Amarathunga, H G Gayuni Hansali | | | 1012 | 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) | | | NOTE: K factor changed | | Kandy Open International Rating Chess Championships 2022 | Kandy | SRI | 2022-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1521 | 1198 | 2.50 | 4 | 1.92 | 20 | 38.40 | |
| | Prabajith, Asela | | | 1690 | SRI | 0.00 | 1 | -0.04 | 20 | -0.80 | | | Pallie, Ehsha Mishela | | wc | 1521 | SRI | 0.50 | 1 | 0.37 | 20 | 7.40 | | | Manuranga, D Lahiru | | | 1503 | SRI | 1.00 | 1 | 0.86 | 20 | 17.20 | | | Jayanka, L P P R | | | 1370 | SRI | 1.00 | 1 | 0.73 | 20 | 14.60 | |
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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