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Individual Calculations June 2023 |
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| De Silva, B P Chanthuli Thanishka Total change: 163.78 | |   |
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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 |
| 1477 | 1225 | 1.00 | 3 | 0.42 | 38 | 15.96 | |
|  Deshappriya, D Kalindu | | | 1421 | SRI | 1.00 | 1 | 0.75 | 38 | 28.50 | |  Insara, S D Nadev | | | 1464 | SRI | 0.00 | 1 | -0.20 | 38 | -7.60 | | | Yaparathne, B K B | | | 1546 | SRI | 0.00 | 1 | -0.13 | 38 | -4.94 | |
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 2022 - Under 12Yrs Girls | Colombo | SRI | 2023-04-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1273 | 1225 | 3.50 | 5 | 1.18 | 38 | 44.84 | |
| | Akuratiya, A G Hansadie Aradhya | | | 1222 | SRI | 1.00 | 1 | 0.50 | 38 | 19.00 | | | Sithumya, W L Sithuli | | | 1233 | SRI | 1.00 | 1 | 0.51 | 38 | 19.38 | | | Munasinghe, M A D D D | | | 1061 | SRI | 1.00 | 1 | 0.28 | 38 | 10.64 | | | Gunawardhana, Devindya Oshini | | | 1656 | SRI | 0.00 | 1 | -0.07 | 38 | -2.66 | | | Hansadi, R B Pumudi | | | 1193 | SRI | 0.50 | 1 | -0.04 | 38 | -1.52 | |
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) | | | | 5th SSC Open International Rating Chess Championship 2023 | Matara | SRI | 2023-04-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1305 | 1225 | 3.50 | 5 | 1.47 | 38 | 55.86 | |
| | Samarakoon, Sasndu Ayod | | | 1021 | SRI | 1.00 | 1 | 0.24 | 38 | 9.12 | | | Gnanaseelan, Jude Dorison | | | 1458 | SRI | 0.00 | 1 | -0.21 | 38 | -7.98 | | | Bandara, B G S N R | | | 1143 | SRI | 1.00 | 1 | 0.39 | 38 | 14.82 | | | Yaparathne, B K B | | | 1546 | SRI | 1.00 | 1 | 0.87 | 38 | 33.06 | | | Gunaweera, Geenuka Kavinu | | | 1355 | SRI | 0.50 | 1 | 0.18 | 38 | 6.84 | |
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 |
| 1454 | 1139 | 2.00 | 5 | 1.24 | 38 | 47.12 | |
| | Weerathungalage, W D Malisha Sasv | | | 1604 | SRI | 0.00 | 1 | -0.05 | 38 | -1.90 | | | Labunahewage, Dulein Bimsath | | | 1349 | SRI | 1.00 | 1 | 0.77 | 38 | 29.26 | | | Induwara, T H D Thisarindu | | | 1548 | SRI | 0.00 | 1 | -0.08 | 38 | -3.04 | | | Fernando, W K B Thumula Theekshan | | | 1341 | SRI | 1.00 | 1 | 0.76 | 38 | 28.88 | | | Wijeratne, Rehan Nawantha | | | 1428 | SRI | 0.00 | 1 | -0.16 | 38 | -6.08 | |
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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