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Individual Calculations June 2023 |
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| Gunawardhana, Devindya Oshini Total change: 41.23 | |   |
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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 |
| 1370 | 1656 | 6.00 | 8 | -0.45 | 31 | -13.95 | |
|  Sooriyaarachchi, B K S S | | | 1256 * | SRI | 1.00 | 1 | 0.08 | 31 | 2.48 | |  Hansana, K V Tharuka | | | 1200 | SRI | 1.00 | 1 | 0.06 | 31 | 1.86 | | | Gowsalyan, S | | | 1368 | SRI | 0.50 | 1 | -0.34 | 31 | -10.54 | | | Perera, B Jayod Yasindu Rashmika | | | 1335 | SRI | 0.50 | 1 | -0.37 | 31 | -11.47 | | | Dharmasena, K Kavinu Ransara | | | 1254 | SRI | 1.00 | 1 | 0.08 | 31 | 2.48 | | | Mathes Arachchi, Bhanila M | | | 1396 | SRI | 1.00 | 1 | 0.18 | 31 | 5.58 | | | Fonseka, Waranakulasuriya Chan Ch | | | 1297 | SRI | 1.00 | 1 | 0.10 | 31 | 3.10 | | | Amarasinghe, A A C B | c | | 1855 | SRI | 0.00 | 1 | -0.24 | 31 | -7.44 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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 |
| 1181 | 1656 | 5.50 | 6 | -0.19 | 31 | -5.89 | |
| | Dehenya, Hirudini | | | 1026 | SRI | 1.00 | 1 | 0.01 | 31 | 0.31 | | | Beminiwatte, A W Raveeja Arundi | | | 1256 * | SRI | 1.00 | 1 | 0.08 | 31 | 2.48 | | | Perera, B Yenuthi Sahanlee | | | 1163 | SRI | 1.00 | 1 | 0.04 | 31 | 1.24 | | | Hansadi, R B Pumudi | | | 1193 | SRI | 0.50 | 1 | -0.45 | 31 | -13.95 | | | De Silva, B P Chanthuli Thanishka | | | 1225 | SRI | 1.00 | 1 | 0.07 | 31 | 2.17 | | | Akuratiya, A G Hansadie Aradhya | | | 1222 | SRI | 1.00 | 1 | 0.06 | 31 | 1.86 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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 |
| 1573 | 1534 | 5.50 | 8 | 1.97 | 31 | 61.07 | |
| | Weerasinghe, M A Dinal Akilesh | | | 1134 * | SRI | 1.00 | 1 | 0.08 | 31 | 2.48 | | | Alwis, Jenuki | | | 1219 | SRI | 1.00 | 1 | 0.14 | 31 | 4.34 | | | Weerawardane, Romesh | m | | 1896 | SRI | 1.00 | 1 | 0.90 | 31 | 27.90 | | | Fernando, G W Nethmi L | | | 1687 | SRI | 1.00 | 1 | 0.70 | 31 | 21.70 | | | Janukshan, B | | | 1652 | SRI | 1.00 | 1 | 0.66 | 31 | 20.46 | | | Laksiri, A A Kavishka Gimshan | | | 1619 | SRI | 0.00 | 1 | -0.38 | 31 | -11.78 | | | Gamage, Ovin Vidmal | | | 1554 | SRI | 0.50 | 1 | 0.03 | 31 | 0.93 | | | Alahakoon, Isuru | f | | 1819 | SRI | 0.00 | 1 | -0.16 | 31 | -4.96 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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