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Individual Calculations October 2017 |
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| Withanarachchi, W A Vinoli Oneth Total change: -4.40 | |   |
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| 3rd Negombo Chess Festival 2017 | Negombo, Sri lanka | SRI | 2017-08-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1246 | 1323 | 2.00 | 3 | 0.21 | 40 | 8.40 | |
|  Attanayaka, H A M Y L | | | 1115 | SRI | 1.00 | 1 | 0.23 | 40 | 9.20 | |  Fernando, J S Aloka | | | 1576 | SRI | 0.00 | 1 | -0.19 | 40 | -7.60 | | | Ranasinghe, C G S P | | | 1048 | SRI | 1.00 | 1 | 0.17 | 40 | 6.80 | |
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) | | | | 2nd West Asian Youth Chess Championship 2017 | Waskaduwa | SRI | 2017-09-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1349 | 1323 | 3.50 | 8 | -0.32 | 40 | -12.80 | |
| | Gunawardena, I M P T | | | 1634 | SRI | 0.00 | 1 | -0.14 | 40 | -5.60 | | | Mahra, Mallah Alromaithi | | wc | 1109 | UAE | 1.00 | 1 | 0.23 | 40 | 9.20 | | | Tharushi, T H D Niklesha | | wc | 1665 | SRI | 0.50 | 1 | 0.38 | 40 | 15.20 | | | Vidyarathna, Anjitha | | | 1498 | SRI | 0.00 | 1 | -0.27 | 40 | -10.80 | | | Wijesekara, Dinuka Sewmini | | | 1103 | SRI | 0.50 | 1 | -0.28 | 40 | -11.20 | | | Perera, Vihini Vimansa | | | 1146 | SRI | 1.00 | 1 | 0.27 | 40 | 10.80 | | | Kodithuwakku, Himsara | | | 1541 | SRI | 0.00 | 1 | -0.22 | 40 | -8.80 | | | Perera, D G D S Vidarsha | | | 1092 | SRI | 0.50 | 1 | -0.29 | 40 | -11.60 | |
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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