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Individual Calculations September 2015 |
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| Bandara, W M Nadil Dulshen Total change: -28.00 | |   |
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| National Amateur Chess Championship 2015 | Colombo | SRI | 2015-08-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1425 | 1125 | 0.50 | 4 | -0.11 | 40 | -4.40 | |
|  Jayaweera, Y | | | 1525 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Rajapaksa, Inura | | | 1377 | SRI | 0.00 | 1 | -0.19 | 40 | -7.60 | | | Fernando, J S Aloka | | | 1414 | SRI | 0.00 | 1 | -0.16 | 40 | -6.40 | | | Dissanayake, Kamesh Janaja | | | 1383 | SRI | 0.50 | 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) | | | | Sri Lanka Open Chess Championship 2015 | Colombo | SRI | 2015-08-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1381 | 1125 | 0.00 | 3 | -0.59 | 40 | -23.60 | |
|  Lakmal, M A C | | | 1503 | SRI | 0.00 | 1 | -0.09 | 40 | -3.60 | | | Wickramasinghe, Hiruna | | | 1368 | SRI | 0.00 | 1 | -0.20 | 40 | -8.00 | | | Pallie, Ehsha Mishela | | wc | 1272 | SRI | 0.00 | 1 | -0.30 | 40 | -12.00 | |
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) | | |
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