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Individual Calculations March 2015 |
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| Roshan, K Total change: -14.20 | |   |
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| Colombo Chess Festival 2015 | Colombo | SRI | 2015-01-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1345 | 1366 | 1.00 | 3 | -0.66 | 20 | -13.20 | |
|  Galappaththi, Chinthaka Anuruddh | f | | 1766 * | SRI | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Thanuja, Dewsara | | | 1145 | SRI | 0.50 | 1 | -0.28 | 20 | -5.60 | |  Wijerathne, Amandi Ishitha | | | 1124 | SRI | 0.50 | 1 | -0.30 | 20 | -6.00 | | | * 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) | | | | Sri Lanka Major Division Chess Championship 2015 Colombo | Colombo | SRI | 2015-02-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1379 | 1380 | 3.50 | 7 | -0.05 | 20 | -1.00 | |
| | Perera, Mulindu Mewan | | | 1016 | SRI | 1.00 | 1 | 0.10 | 20 | 2.00 | | | Pinto, Semuthu | | | 1767 | SRI | 0.00 | 1 | -0.09 | 20 | -1.80 | | | Gamage, Randula Navodya | | | 1173 | SRI | 1.00 | 1 | 0.23 | 20 | 4.60 | | | Dayarathne, D M S N | | | 1606 | SRI | 0.50 | 1 | 0.29 | 20 | 5.80 | | | Thennakoon, T M M | | | 1258 | SRI | 0.50 | 1 | -0.17 | 20 | -3.40 | | | Anojman, S. | | | 1569 | SRI | 0.00 | 1 | -0.25 | 20 | -5.00 | | | Wijayasuriya, Pulindu Thewmika | | | 1263 | SRI | 0.50 | 1 | -0.16 | 20 | -3.20 | |
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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