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Individual Calculations November 2023 |
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| Karunarathna, Umeth Total change: 83.60 | |   |
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| Sri Lanka Junior National Chess Championship 2023 | Kandy | SRI | 2023-08-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1113 | 1025 | 4.00 | 7 | 1.34 | 40 | 53.60 | |
|  Fernando, Diyon Senuth Randilu | | | 1190 | SRI | 0.00 | 1 | -0.28 | 40 | -11.20 | | | Rathnayake, R M R S | | | 1095 | SRI | 0.50 | 1 | 0.10 | 40 | 4.00 | |  Abeykoon, A M C N | | | 1054 | SRI | 1.00 | 1 | 0.54 | 40 | 21.60 | | | Katugampala, K Nadew Nandeesh | | | 1118 | SRI | 1.00 | 1 | 0.63 | 40 | 25.20 | | | Fernando, Senara | | | 1145 | SRI | 0.50 | 1 | 0.16 | 40 | 6.40 | | | Madawala, R M I S B | | | 1087 | SRI | 0.50 | 1 | 0.09 | 40 | 3.60 | | | Mayadunna, D Thimesh | | | 1099 | SRI | 0.50 | 1 | 0.10 | 40 | 4.00 | |
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) | | | | Kandy Open International Rating Chess Championships 2023 | Kandy | SRI | 2023-09-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1225 | 1025 | 2.00 | 5 | 0.75 | 40 | 30.00 | |
| | Uyanwaththa, W M S B | | | 1343 | SRI | 0.00 | 1 | -0.13 | 40 | -5.20 | | | Senanayake, Sekitha Rasula | | | 1154 | SRI | 1.00 | 1 | 0.67 | 40 | 26.80 | | | Weerathunga, W A S H | | | 1195 | SRI | 0.50 | 1 | 0.22 | 40 | 8.80 | | | Sandaruwan, K E Dineth | | | 1272 | SRI | 0.00 | 1 | -0.19 | 40 | -7.60 | | | Ranathunga, R M Methula Sansitha | | | 1161 | SRI | 0.50 | 1 | 0.18 | 40 | 7.20 | |
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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