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Individual Calculations September 2019 |
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| Costha, M Yomali Muthumini Total change: -5.20 | |   |
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| 5th Negombo International chess Festival 2019 | Negombo | SRI | 2019-08-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1315 | 1036 | 0.00 | 3 | -0.53 | 40 | -21.20 | |
|  Samarakoon, Hevidu | | | 1436 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | |  Sanjaya, W M Lankanath | | | 1266 | SRI | 0.00 | 1 | -0.21 | 40 | -8.40 | | | Jayawickrama, U W R K | | | 1242 | SRI | 0.00 | 1 | -0.24 | 40 | -9.60 | | | * 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) | | | | 9th Kandy Open International Chess Festival 2019 | Kandy | SRI | 2019-08-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1278 | 1036 | 1.00 | 3 | 0.40 | 40 | 16.00 | |
| | Karthikeyan, Kiruththikah | | | 1260 | SRI | 0.50 | 1 | 0.28 | 40 | 11.20 | | | Lavanga, D Binuka | | | 1273 | SRI | 0.00 | 1 | -0.20 | 40 | -8.00 | | | Gunasekara, Ayodya Nethmini | | | 1300 | SRI | 0.50 | 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) | | |
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