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Individual Calculations March 2015 |
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| Wijeratne, M H Eranda Total change: 28.40 | |   |
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| Colombo Chess Festival 2015 | Colombo | SRI | 2015-01-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1415 | 1157 | 0.50 | 4 | -0.27 | 40 | -10.80 | |
|  Weerasinghe, C C | | | 1554 | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Kiriella, K G Gimantha Gayasha | | | 1405 | SRI | 0.00 | 1 | -0.19 | 40 | -7.60 | | | Kiriella, K G Nimesha Shalinda | | | 1387 | SRI | 0.00 | 1 | -0.21 | 40 | -8.40 | | | Shasikumar, Nagarajah | | | 1314 | SRI | 0.50 | 1 | 0.21 | 40 | 8.40 | |
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 Major Division Chess Championship 2015 Colombo | Colombo | SRI | 2015-02-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1398 | 1157 | 2.00 | 5 | 0.98 | 40 | 39.20 | |
| | Palipana, Kethaka | | | 1515 | SRI | 0.00 | 1 | -0.10 | 40 | -4.00 | |  Karunarathne, D D W Gamini | | | 1341 | SRI | 1.00 | 1 | 0.74 | 40 | 29.60 | | | Mendis, B M A | | | 1375 | SRI | 0.00 | 1 | -0.22 | 40 | -8.80 | | | Manage, S M Dilan Sachintha | | | 1356 | SRI | 0.50 | 1 | 0.26 | 40 | 10.40 | | | Perera, Eshan Madawa | | | 1401 | SRI | 0.50 | 1 | 0.30 | 40 | 12.00 | |
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) | | |
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