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Individual Calculations November 2018 |
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| Chamathka, Weerasinghe A Chethan Total change: 19.20 | |   |
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| Buddhi Open International Rating Chess Tournament 2018 | Gampaha | SRI | 2018-09-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1228 | 1235 | 2.50 | 4 | 0.48 | 40 | 19.20 | |
|  Herath, H M J R | | | 1010 | SRI | 1.00 | 1 | 0.22 | 40 | 8.80 | |  Edirisinghe, Savindu Ransiha | | | 1082 | SRI | 1.00 | 1 | 0.30 | 40 | 12.00 | | | Liyanage, Pesandu Rashmitha | | | 1412 | SRI | 0.50 | 1 | 0.23 | 40 | 9.20 | | | Morais, Sanithu Leander Pamudith | | | 1409 | SRI | 0.00 | 1 | -0.27 | 40 | -10.80 | |
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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