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Individual Calculations September 2015 |
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| Devnaka, Chamin Total change: 135.20 | |   |
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| National Amateur Chess Championship 2015 | Colombo | SRI | 2015-08-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1492 | 1178 | 2.00 | 5 | 1.27 | 40 | 50.80 | |
|  Dissanayake, Manusha Dinuk | | | 1477 | SRI | 1.00 | 1 | 0.85 | 40 | 34.00 | |  Jayaweera, Y | | | 1573 | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Perera, Tharusha Salinda | | | 1466 | SRI | 0.00 | 1 | -0.16 | 40 | -6.40 | | | Roshan, K | | | 1366 | SRI | 0.50 | 1 | 0.24 | 40 | 9.60 | | | Madusanka, L D P | | | 1578 * | SRI | 0.50 | 1 | 0.42 | 40 | 16.80 | | | * 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 |
| 1436 | 1178 | 4.00 | 9 | 2.11 | 40 | 84.40 | |
| | Liyanage, Pesandu Rashmitha | | | 1045 | SRI | 1.00 | 1 | 0.32 | 40 | 12.80 | | | Weerakoon, D D P | | | 1578 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Ranasinghe, Anuga Gavindith | | | 1421 | SRI | 1.00 | 1 | 0.80 | 40 | 32.00 | | | Nirmalarajah, S | | | 1550 | SRI | 1.00 | 1 | 0.90 | 40 | 36.00 | | | Naotunna, D R | | | 1578 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Premarathne, H R S P | | | 1422 | SRI | 1.00 | 1 | 0.80 | 40 | 32.00 | | | Siriwardena, G T D | | | 1534 | SRI | 0.00 | 1 | -0.11 | 40 | -4.40 | | | Rajapaksa, Inura | | | 1377 | SRI | 0.00 | 1 | -0.24 | 40 | -9.60 | | | Wijerathne, Surath | | | 1422 | SRI | 0.00 | 1 | -0.20 | 40 | -8.00 | | | * 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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