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Individual Calculations September 2018 |
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| Siriwardane, A L Total change: 55.80 | |   |
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| 7th Mercantile and Government Service Chess Championship 2018 | Colombo | SRI | 2018-07-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1785 | 1445 | 2.50 | 5 | 1.88 | 20 | 37.60 | |
|  Wickramasinghe, N G Namal | | | 1746 | SRI | 0.00 | 1 | -0.15 | 20 | -3.00 | | | Perera, Anjana | | wc | 1824 | SRI | 1.00 | 1 | 0.91 | 20 | 18.20 | |  Kondagoda, P. M. B. | | | 1666 | SRI | 1.00 | 1 | 0.78 | 20 | 15.60 | | | Madugalle, Y D B | | | 1845 * | SRI | 0.50 | 1 | 0.42 | 20 | 8.40 | | | Fernando, S K Akila | | | 1845 * | SRI | 0.00 | 1 | -0.08 | 20 | -1.60 | | | * 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) | | | | Sri Lanka Open International Rating Chess Championship 2018 | Colombo | SRI | 2018-08-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1254 | 1448 | 6.00 | 7 | 0.91 | 20 | 18.20 | |
| | Kotuwelle, Akash Tharupathi | | | 1048 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Rajapaksha, Isum Asitha | | | 1174 | SRI | 1.00 | 1 | 0.17 | 20 | 3.40 | | | Silva, Haren Senura | | | 1153 | SRI | 0.00 | 1 | -0.85 | 20 | -17.00 | | | Ahangama, Senuka Aswin | | | 1167 | SRI | 1.00 | 1 | 0.16 | 20 | 3.20 | | | Akasha, J P Vihanga | | | 1300 | SRI | 1.00 | 1 | 0.30 | 20 | 6.00 | | | Thilakaratna, D H Sahasra Geesar | | | 1298 | SRI | 1.00 | 1 | 0.30 | 20 | 6.00 | | | Dahanayake, Isara Banidu | c | | 1640 | SRI | 1.00 | 1 | 0.75 | 20 | 15.00 | | | * 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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