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Individual Calculations September 2015 |
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| Jayaweera, Y Total change: 29.80 | |   |
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| National Amateur Chess Championship 2015 | Colombo | SRI | 2015-08-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1482 | 1573 | 5.00 | 8 | 0.34 | 20 | 6.80 | |
|  Bandara, W M Nadil Dulshen | | | 1173 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Gunasinghe, W A T S | | | 1887 | SRI | 0.00 | 1 | -0.14 | 20 | -2.80 | | | Edirisinghe, S Thulnith | | | 1275 | SRI | 1.00 | 1 | 0.15 | 20 | 3.00 | | | Devnaka, Chamin | | | 1178 | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Ekanayake, A M B | | | 1650 | SRI | 0.00 | 1 | -0.39 | 20 | -7.80 | | | Wanigarathne, K A N | | | 1178 | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Madusanka, L D P | | | 1740 | SRI | 1.00 | 1 | 0.72 | 20 | 14.40 | | | De Silva, Rasheen | | | 1772 | SRI | 0.00 | 1 | -0.24 | 20 | -4.80 | | | * 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 |
| 1601 | 1573 | 5.00 | 8 | 1.15 | 20 | 23.00 | |
| | Thilakarathne, Malidu Amodya | | | 1173 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Pradeep, Kumar R A | | | 1973 * | IND | 0.50 | 1 | 0.42 | 20 | 8.40 | | | Tharushi, T H D Niklesha | | | 1365 | SRI | 1.00 | 1 | 0.23 | 20 | 4.60 | | | Alahakoon, Isuru | | | 1973 * | SRI | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Perera, U I Himal | | | 1320 | SRI | 1.00 | 1 | 0.19 | 20 | 3.80 | | | Jayasundara, P K U M | c | | 1973 * | SRI | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Wickramasinghe, Sonal | | | 1273 | SRI | 1.00 | 1 | 0.15 | 20 | 3.00 | | | Ranasinghe, S D | | wm | 1761 | SRI | 0.50 | 1 | 0.24 | 20 | 4.80 | | | * 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) | | |
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