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Individual Calculations June 2023 |
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| Alwis, H Sandithi Kusalya Total change: 99.20 | |   |
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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 |
| 1311 | 1218 | 3.00 | 5 | 0.97 | 40 | 38.80 | |
|  Seneviratne, Shehan Kavishka | | | 1652 | SRI | 0.00 | 1 | -0.06 | 40 | -2.40 | | | Sutharsan, Mithura | | | 1056 | SRI | 1.00 | 1 | 0.29 | 40 | 11.60 | |  Jayasundara, J M Theruni V | | | 1397 | SRI | 1.00 | 1 | 0.73 | 40 | 29.20 | | | Weerasekara, Dinul Vinsitha | | | 1448 | SRI | 0.00 | 1 | -0.21 | 40 | -8.40 | | | Seenipellage, Himandi Esara | | | 1001 | SRI | 1.00 | 1 | 0.22 | 40 | 8.80 | |
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) | | | | Sri Lanka National Youth Chess Championship 2023 - Under 14Yrs Girls | Colombo | SRI | 2023-04-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1175 | 1218 | 4.00 | 6 | 0.66 | 40 | 26.40 | |
| | Amarathunga, H G K G | | | 1062 | SRI | 1.00 | 1 | 0.29 | 40 | 11.60 | | | Jayasundara, J M Theruni V | | | 1397 | SRI | 1.00 | 1 | 0.73 | 40 | 29.20 | | | Gunasekara, K P K Hesara | | | 1296 | SRI | 0.00 | 1 | -0.39 | 40 | -15.60 | | | Jayathissa, J Y | | | 1093 | SRI | 0.50 | 1 | -0.17 | 40 | -6.80 | | | Koswattage, Hirudi | | | 1039 | SRI | 1.00 | 1 | 0.27 | 40 | 10.80 | | | Somarathne, L H M G S | | | 1165 | SRI | 0.50 | 1 | -0.07 | 40 | -2.80 | |
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 |
| 1428 | 1240 | 2.50 | 6 | 0.85 | 40 | 34.00 | |
| | Madushanka, B W M Malith | | | 1598 | SRI | 0.00 | 1 | -0.10 | 40 | -4.00 | | | Tharushi, T H D Niklesha | | wc | 1531 | SRI | 1.00 | 1 | 0.85 | 40 | 34.00 | | | Ramanayake, Nemindi Linaya | | | 1465 | SRI | 0.00 | 1 | -0.22 | 40 | -8.80 | | | Perera, Prabodha Sathsara | | | 1116 | SRI | 1.00 | 1 | 0.33 | 40 | 13.20 | | | Basnayake, B M Thesandu Aken | | | 1442 | SRI | 0.50 | 1 | 0.26 | 40 | 10.40 | | | Rathnayaka, Minaga Yethmin | | | 1415 | SRI | 0.00 | 1 | -0.27 | 40 | -10.80 | |
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) | | |
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