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Individual Calculations September 2015 |
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| Sanudula, K M Dahamdi Total change: -4.40 | |   |
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| National Women's Amateur Chess Championship 2015 | Colombo | SRI | 2015-08-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1386 | 1180 | 1.50 | 6 | -0.03 | 40 | -1.20 | |
|  Senarath, B T A Y | | | 1477 | SRI | 0.50 | 1 | 0.35 | 40 | 14.00 | |  Wijesuriya, G P Y | | | 1384 | SRI | 0.00 | 1 | -0.24 | 40 | -9.60 | | | Jayasuriya, Linali Andrea | | | 1143 | SRI | 1.00 | 1 | 0.45 | 40 | 18.00 | | | Abeysinghe, H M H Janandani | | | 1462 | SRI | 0.00 | 1 | -0.16 | 40 | -6.40 | | | Udagedara, Sandali Kanishka | | | 1535 | SRI | 0.00 | 1 | -0.11 | 40 | -4.40 | | | Perera, Hansini | | | 1312 | SRI | 0.00 | 1 | -0.32 | 40 | -12.80 | |
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) | | | | Sri Lanka Open Chess Championship 2015 | Colombo | SRI | 2015-08-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1495 | 1180 | 0.50 | 4 | -0.08 | 40 | -3.20 | |
| | Kotalawala, Vinodh | | | 1580 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Kodikara, K K M Sachintha | | wc | 1439 | SRI | 0.50 | 1 | 0.32 | 40 | 12.80 | | | Jayasekera, Himasha Dulanji | | wc | 1405 | SRI | 0.00 | 1 | -0.22 | 40 | -8.80 | | | Siriwardena, Janaka | | | 1554 | SRI | 0.00 | 1 | -0.10 | 40 | -4.00 | | | * 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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