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Individual Calculations October 2018 |
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| Ranganath, Tharuli Vihasna Total change: 15.20 | |   |
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| 4th Negambo International Chess Festival 2018 | Negambo | SRI | 2018-08-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1218 | 1045 | 1.00 | 3 | 0.18 | 40 | 7.20 | |
|  Bentharaarachchi, Vinuga Ometh | | | 1284 | SRI | 0.50 | 1 | 0.30 | 40 | 12.00 | |  Silva, Haren Senura | | | 1153 | SRI | 0.00 | 1 | -0.35 | 40 | -14.00 | | | Liyanage, D B M Nethmini | | | 1217 | SRI | 0.50 | 1 | 0.23 | 40 | 9.20 | |
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) | | | | Sri Lanka Junior Girls National Chess Championship 2018 | Colombo | SRI | 2018-08-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1293 | 1045 | 1.00 | 4 | 0.20 | 40 | 8.00 | |
| | Seneka, M W Thenumi | | | 1389 | SRI | 0.00 | 1 | -0.12 | 40 | -4.80 | | | Jaysenthuliyane, Vinumi Vidara | | | 1248 | SRI | 0.00 | 1 | -0.24 | 40 | -9.60 | | | Srilal, D A D T | | | 1303 | SRI | 0.50 | 1 | 0.32 | 40 | 12.80 | | | Sandanayake, Dehansa Nisanduni | | | 1230 | SRI | 0.50 | 1 | 0.24 | 40 | 9.60 | |
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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