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Individual Calculations September 2019 |
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| Wimalagunasekara, D Nithwara Total change: -34.40 | |   |
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| Sri Lanka open International Rating Chess Championship 2019 | Anuradhapura | SRI | 2019-08-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1349 | 1081 | 0.50 | 4 | -0.22 | 40 | -8.80 | |
|  Wiratunga, Jenith | | | 1458 | SRI | 0.00 | 1 | -0.09 | 40 | -3.60 | | | Jayaweera, Hashan | | | 1373 | SRI | 0.00 | 1 | -0.15 | 40 | -6.00 | | | Alwis, Randeepa | | | 1291 | SRI | 0.00 | 1 | -0.23 | 40 | -9.20 | |  Arthigan, J | | | 1273 | SRI | 0.50 | 1 | 0.25 | 40 | 10.00 | |
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) | | | | 5th Negombo International chess Festival 2019 | Negombo | SRI | 2019-08-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1376 | 1081 | 0.00 | 4 | -0.64 | 40 | -25.60 | |
| | Amarasinghe, A A C B | | | 1481 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Akash, P A Oditha | | | 1385 | SRI | 0.00 | 1 | -0.14 | 40 | -5.60 | | | Gamarathne, Oneth | | | 1403 | SRI | 0.00 | 1 | -0.13 | 40 | -5.20 | | | Siyambalapitiya, S V D S | | | 1235 | SRI | 0.00 | 1 | -0.29 | 40 | -11.60 | | | * 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) | | |
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