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Individual Calculations November 2015 |
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| Perera, D G D Y Adeekshana Total change: -8.40 | |   |
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| Buddhi International Rating Chess Championship 2015 | Gampaha | SRI | 2015-09-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1369 | 1134 | 0.50 | 4 | -0.32 | 40 | -12.80 | |
|  Dabarera, G W D M | | | 1362 | SRI | 0.00 | 1 | -0.21 | 40 | -8.40 | | | Udagedara, Sandali Kanishka | | | 1417 | SRI | 0.50 | 1 | 0.34 | 40 | 13.60 | |  Madumal, M R D | | | 1362 | SRI | 0.00 | 1 | -0.21 | 40 | -8.40 | | | Sarathchandra, Thihansa Dewwanth | | | 1335 | SRI | 0.00 | 1 | -0.24 | 40 | -9.60 | |
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) | | | | Negombo Chess Festival 2015 | Negombo | SRI | 2015-10-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1509 | 1134 | 0.50 | 4 | 0.11 | 40 | 4.40 | |
| | Subasinghe, K R V R | | | 1534 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Seneviratne, Shehan Kavishka | | | 1534 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Nanayakkara, J A G Ganganath | | | 1534 * | SRI | 0.50 | 1 | 0.42 | 40 | 16.80 | | | Wijerathne, Surath | | | 1432 | SRI | 0.00 | 1 | -0.15 | 40 | -6.00 | | | * 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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