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Individual Calculations September 2019 |
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| Warushvithana, Senuri Shehana Ku Total change: -21.60 | |   |
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| 4th SSC Open International Rating chess Championship 2019 | Matara | SRI | 2019-08-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1386 | 1063 | 0.00 | 2 | -0.26 | 40 | -10.40 | |
|  De Silva, J I Ajantha | | | 1387 | SRI | 0.00 | 1 | -0.13 | 40 | -5.20 | | | Wickramasinghe, Minethma Lasandi | | wc | 1384 | SRI | 0.00 | 1 | -0.13 | 40 | -5.20 | |
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) | | | | 5th Negombo International chess Festival 2019 | Negombo | SRI | 2019-08-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1321 | 1063 | 0.50 | 4 | -0.28 | 40 | -11.20 | |
| | Siriwardana, V N W | | | 1463 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | |  Asuramanna, Mevindu Hansana | | | 1260 | SRI | 0.50 | 1 | 0.25 | 40 | 10.00 | | | Dharmasena, W M S S B | | | 1326 | SRI | 0.00 | 1 | -0.18 | 40 | -7.20 | | | Jayasinghe, Thenugi Dilanya | | | 1235 | SRI | 0.00 | 1 | -0.27 | 40 | -10.80 | | | * 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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