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Individual Calculations September 2015 |
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| Jayasuriya, Linali Andrea Total change: 64.80 | |   |
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| National Women's Amateur Chess Championship 2015 | Colombo | SRI | 2015-08-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1238 | 1143 | 2.50 | 5 | 0.62 | 40 | 24.80 | |
|  Rodrigo, T M Janudi | | | 1379 | SRI | 0.00 | 1 | -0.20 | 40 | -8.00 | | | Pallie, Ehsha Mishela | | wc | 1272 | SRI | 1.00 | 1 | 0.67 | 40 | 26.80 | |  Sanudula, K M Dahamdi | | | 1180 | SRI | 0.00 | 1 | -0.45 | 40 | -18.00 | | | Ekanayaka, Achinthya | | | 1147 | SRI | 0.50 | 1 | 0.01 | 40 | 0.40 | | | Herath, Sanduni | | | 1210 | SRI | 1.00 | 1 | 0.59 | 40 | 23.60 | |
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) | | | | 6th Kandy Open International Rating Chess Championship | Kandy | SRI | 2015-08-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1429 | 1143 | 0.00 | 4 | -0.66 | 40 | -26.40 | |
| | De Silva, J I Ajantha | | | 1535 | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Premarathne, H R S P | | | 1422 | SRI | 0.00 | 1 | -0.16 | 40 | -6.40 | | | Piyathilake, K D D H | | | 1322 | SRI | 0.00 | 1 | -0.27 | 40 | -10.80 | | | Yapa Bandara, Chamodya | | | 1438 | SRI | 0.00 | 1 | -0.15 | 40 | -6.00 | |
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) | | | | Sri Lanka Open Chess Championship 2015 | Colombo | SRI | 2015-08-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1402 | 1143 | 3.00 | 7 | 1.66 | 40 | 66.40 | |
| | Ranasinghe, Shalini | | | 1543 * | SRI | 0.50 | 1 | 0.42 | 40 | 16.80 | | | Madurapperuma, M A D Maheshika L | | | 1424 | SRI | 1.00 | 1 | 0.84 | 40 | 33.60 | | | Balasuriya, Sajini Hasara | | | 1472 | SRI | 0.00 | 1 | -0.12 | 40 | -4.80 | | | Tharushi, T H D Niklesha | | | 1365 | SRI | 0.00 | 1 | -0.22 | 40 | -8.80 | | | Shasikumar, Nagarajah | | | 1313 | SRI | 0.00 | 1 | -0.28 | 40 | -11.20 | | | Lakshan, G Dilina Udeepa | | | 1292 | SRI | 1.00 | 1 | 0.70 | 40 | 28.00 | | | Jayasekera, Himasha Dulanji | | wc | 1405 | 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) | | |
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