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Individual Calculations September 2019 |
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| Insara, S D Nadev Total change: 67.20 | |   |
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| 4th SSC Open International Rating chess Championship 2019 | Matara | SRI | 2019-08-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1248 | 1045 | 2.00 | 4 | 1.03 | 40 | 41.20 | |
|  Hansamali, H M Samudrika | | | 1215 | SRI | 0.50 | 1 | 0.22 | 40 | 8.80 | |  Kumarasiri, D K N | | | 1258 | SRI | 1.00 | 1 | 0.77 | 40 | 30.80 | | | Dissanayake, D M Madushan Sameer | | | 1230 | SRI | 0.00 | 1 | -0.26 | 40 | -10.40 | | | Kanakarathne, S Nevinka De Silva | | | 1288 | SRI | 0.50 | 1 | 0.30 | 40 | 12.00 | |
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) | | | | 9th Kandy Open International Chess Festival 2019 | Kandy | SRI | 2019-08-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1318 | 1045 | 1.00 | 2 | 0.65 | 40 | 26.00 | |
| | Gunasekara, Ayodya Nethmini | | | 1300 | SRI | 0.50 | 1 | 0.31 | 40 | 12.40 | | | Piyarthne, Movindu Lushan | | | 1335 | SRI | 0.50 | 1 | 0.34 | 40 | 13.60 | |
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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