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Individual Calculations May 2017 |
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| Perera, D G D S Vidarsha Total change: -3.60 | |   |
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| Sri Lanka Women's Qualifying Championship 2017 - Colombo | Colombo | SRI | 2017-03-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1220 | 1062 | 1.00 | 4 | -0.27 | 40 | -10.80 | |
|  De Silva, Chamindra | | | 1462 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Perera, Hansini | | | 1232 | SRI | 0.00 | 1 | -0.28 | 40 | -11.20 | |  Silva, Hiruni Kasundi K | | | 1184 | SRI | 0.00 | 1 | -0.33 | 40 | -13.20 | | | Pallegama, Isuru | | | 1003 | SRI | 1.00 | 1 | 0.42 | 40 | 16.80 | | | * 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) | | | | National Youth Chess Championship 2017 - Under 10 Girls | Colombo | SRI | 2017-04-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1127 | 1062 | 1.00 | 2 | 0.18 | 40 | 7.20 | |
| | Weerawardana, Oneli Vihanga | | | 1180 | SRI | 0.00 | 1 | -0.34 | 40 | -13.60 | | | Liyanage, R L Mihini B | | wc | 1074 | SRI | 1.00 | 1 | 0.52 | 40 | 20.80 | |
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) | | |
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