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Individual Calculations June 2023 |
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| Wickramaarachchi, Gayaru Chamsara Total change: 2.00 | |   |
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| Sri Lanka National Youth Chess Championship 2023 - Under 12Yrs Open | Colombo | SRI | 2023-04-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1316 | 1120 | 1.00 | 3 | 0.17 | 40 | 6.80 | |
|  Pattikara, Nithum | | | 1171 | SRI | 0.50 | 1 | 0.07 | 40 | 2.80 | |  Wickramasinghe, V W A Vinuda Vidm | | | 1524 | SRI | 0.50 | 1 | 0.42 | 40 | 16.80 | | | Hettigoda, Dhanodya Budmina | | | 1254 | SRI | 0.00 | 1 | -0.32 | 40 | -12.80 | |
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) | | | | Colombo International Chess Festival 2023 | Colombo | SRI | 2023-05-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1440 | 1120 | 0.50 | 4 | -0.12 | 40 | -4.80 | |
| | Kodithuwakku, Himsara | | | 1641 | SRI | 0.00 | 1 | -0.03 | 40 | -1.20 | | | Akuratiya, A G Javindi Avarjana | | | 1366 | SRI | 0.50 | 1 | 0.31 | 40 | 12.40 | | | Perera, H A Lisanda Vinsith | | | 1464 | SRI | 0.00 | 1 | -0.12 | 40 | -4.80 | | | Sathsara, E P Daham | | | 1289 | 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) | | |
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