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Individual Calculations January 2020 |
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| Perera, G Thinuka Geethula Total change: 54.80 | |   |
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| 11th Ethugalpura International Chess Championship 2019 | Kurunegala | SRI | 2019-11-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1481 | 1147 | 1.50 | 4 | 1.01 | 40 | 40.40 | |
|  Tennakoon, I L K | | | 1523 | SRI | 0.00 | 1 | -0.09 | 40 | -3.60 | |  Gunarathna, D A Viraj Darshana | | | 1463 | SRI | 1.00 | 1 | 0.87 | 40 | 34.80 | | | Gamage, Liviru Hansana | | | 1475 | SRI | 0.50 | 1 | 0.37 | 40 | 14.80 | | | Malinda, Sudesh | | | 1461 | SRI | 0.00 | 1 | -0.14 | 40 | -5.60 | |
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) | | | | The Kolonnawa Chess Classic International Rating Tournament 2019 | Colombo | SRI | 2019-12-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1363 | 1147 | 1.50 | 5 | 0.36 | 40 | 14.40 | |
| | Jayaweera, Hashan | | | 1422 | SRI | 0.00 | 1 | -0.17 | 40 | -6.80 | | | Gunarathne, Senila Amaneth | c | | 1398 | SRI | 0.50 | 1 | 0.31 | 40 | 12.40 | | | Selvarajah, Selvendra | | | 1302 | SRI | 1.00 | 1 | 0.71 | 40 | 28.40 | | | Sandaruwan, M G Ravindu | | | 1389 | SRI | 0.00 | 1 | -0.20 | 40 | -8.00 | | | Ramanayake, Nemindi Linaya | | | 1303 | SRI | 0.00 | 1 | -0.29 | 40 | -11.60 | |
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) | | |
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