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Individual Calculations July 2015 |
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| Wimalasuriya, M Sachithra Total change: 6.80 | |   |
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| 5th Dhamso International Chess Festival 2015 | Ambalangoda | SRI | 2015-05-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1521 | 1443 | 2.00 | 4 | 0.28 | 40 | 11.20 | |
|  Gunasinghe, W A T S | | | 1843 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | |  Wanigarathne, K A N | | | 1199 | SRI | 1.00 | 1 | 0.20 | 40 | 8.00 | | | Kodikara, N S | | | 1292 | SRI | 1.00 | 1 | 0.30 | 40 | 12.00 | | | Lasitha, Subash | c | | 1750 | SRI | 0.00 | 1 | -0.14 | 40 | -5.60 | | | * 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 B Chess Championship 2015 | Colombo | SRI | 2015-06-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1594 | 1443 | 2.50 | 8 | -0.11 | 40 | -4.40 | |
| | Amarasinghe, A A C B | | | 1829 | SRI | 0.00 | 1 | -0.09 | 40 | -3.60 | | | Kandearachchi, Jayanga | | | 1698 | SRI | 0.50 | 1 | 0.31 | 40 | 12.40 | | | Madusanka, L D P | | | 1737 | SRI | 0.00 | 1 | -0.15 | 40 | -6.00 | | | Ekanayake, A M B | | | 1707 | SRI | 0.00 | 1 | -0.18 | 40 | -7.20 | | | Arulananthan, Pirathapan | | | 1368 | SRI | 0.50 | 1 | -0.10 | 40 | -4.00 | | | Madanperuma, M A Sunera | | | 1351 | SRI | 0.50 | 1 | -0.13 | 40 | -5.20 | | | Priyadarshana, Y Danushka | | | 1641 | SRI | 0.00 | 1 | -0.24 | 40 | -9.60 | | | Gunasekara , W A N Senpathi | | | 1420 | SRI | 1.00 | 1 | 0.47 | 40 | 18.80 | |
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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