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Individual Calculations October 2019 |
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| Gamarathne, Oneth Total change: -5.60 | |   |
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| Sri Lanka Junior National Chess Championship 2019 | Colombo | SRI | 2019-08-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1018 | 1403 | 0.00 | 1 | -0.91 | 40 | -36.40 | |
|  Shanuka, R K Chamath | | | 1018 | SRI | 0.00 | 1 | -0.91 | 40 | -36.40 | |
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) | | | | 10th Buddhi International Rating Chess Championship 2019 | Gampaha | SRI | 2019-09-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1395 | 1415 | 4.50 | 7 | 0.77 | 40 | 30.80 | |
| | Dassanayaka, D M S P | | | 1114 | SRI | 0.50 | 1 | -0.35 | 40 | -14.00 | |  Thennakoon, Disara | | | 1126 | SRI | 1.00 | 1 | 0.16 | 40 | 6.40 | | | Sandanayaka, S D D S | | | 1143 | SRI | 1.00 | 1 | 0.17 | 40 | 6.80 | | | Jayaweera, K P C D B | | | 1601 | SRI | 0.50 | 1 | 0.24 | 40 | 9.60 | | | Silva, Kevin Ranidu | c | | 1815 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Maithripala, W D P N | | | 1218 | SRI | 1.00 | 1 | 0.25 | 40 | 10.00 | | | Ranasinghe, S D | | wm | 1751 | SRI | 0.50 | 1 | 0.38 | 40 | 15.20 | | | * 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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