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Individual Calculations June 2023 |
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| Ovitigala, Dehain Nethvidu Total change: -54.40 | |   |
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| Supr Knights Open International Rating Chess Championship 2023 | Colombo | SRI | 2023-04-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1248 | 1108 | 0.50 | 4 | -0.75 | 40 | -30.00 | |
|  Sugathadasa, Sasiru Hansana | | | 1212 | SRI | 0.00 | 1 | -0.36 | 40 | -14.40 | | | Rathnagoda, R B Sadew Denuwan | | | 1215 | SRI | 0.00 | 1 | -0.35 | 40 | -14.00 | | | Jayanka, L P P R | | | 1292 | SRI | 0.50 | 1 | 0.24 | 40 | 9.60 | |  Ramyasiri, Kaveen Poorna | | | 1271 | SRI | 0.00 | 1 | -0.28 | 40 | -11.20 | |
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 International Chess Festival 2023 | Colombo | SRI | 2023-05-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1360 | 1108 | 0.00 | 3 | -0.61 | 40 | -24.40 | |
| | Ovitigala, Chenitha Mithvidu | | | 1456 | SRI | 0.00 | 1 | -0.11 | 40 | -4.40 | | | Insara, S D Nadev | | | 1406 | SRI | 0.00 | 1 | -0.15 | 40 | -6.00 | | | Alwis, Jenuki | | | 1219 | SRI | 0.00 | 1 | -0.35 | 40 | -14.00 | |
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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