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Individual Calculations October 2017 |
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| Hetti Arachchige, Thisumi S Total change: 60.80 | |   |
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| 4th Sri Lanka National Amateur International Rating Women Chess Championships 2017 | Colombo | SRI | 2017-08-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1415 | 1190 | 1.50 | 3 | 0.73 | 40 | 29.20 | |
|  Udagedara, Sandali Kanishka | | | 1589 | SRI | 0.50 | 1 | 0.42 | 40 | 16.80 | |  Yatapana, Navoda | | | 1163 | SRI | 1.00 | 1 | 0.46 | 40 | 18.40 | | | Gimhani, H. Shashipraba | | | 1492 | SRI | 0.00 | 1 | -0.15 | 40 | -6.00 | |
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) | | | | 3rd Negombo Chess Festival 2017 | Negombo, Sri lanka | SRI | 2017-08-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1281 | 1190 | 2.00 | 4 | 0.34 | 40 | 13.60 | |
| | Priyankara, Chamil | | | 1590 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Medawewa, Kithsara G B | | | 1023 | SRI | 1.00 | 1 | 0.28 | 40 | 11.20 | | | Dissanayake, Manusha Dinuk | | | 1456 | SRI | 0.00 | 1 | -0.18 | 40 | -7.20 | | | Wijayawardana, Dineth Chanal | | | 1056 | SRI | 1.00 | 1 | 0.32 | 40 | 12.80 | | | * 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) | | | | 8th Kandy Open International Rating Chess Championship 2017 | Kandy | SRI | 2017-08-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1415 | 1190 | 1.50 | 4 | 0.45 | 40 | 18.00 | |
| | Sathkumara, S M H D | | | 1479 | SRI | 0.50 | 1 | 0.34 | 40 | 13.60 | | | Mahinthan, Kanagasabai | | | 1558 | SRI | 0.00 | 1 | -0.10 | 40 | -4.00 | | | Udagedara, Sandali Kanishka | | | 1589 | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Rajasinghe, T S Thewnuja | | | 1035 | SRI | 1.00 | 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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