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Individual Calculations January 2018 |
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| Galukagama, G L Dishen Sandaru Total change: -49.60 | |   |
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| 9th Ethugalpura International Rating Chess Championship 2017 | Kurunegala | SRI | 2017-12-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1244 | 1095 | 1.00 | 5 | -0.57 | 40 | -22.80 | |
|  Jayasena, Tharaka Udayanga | | | 1383 | SRI | 0.00 | 1 | -0.16 | 40 | -6.40 | | | Dissanayake , Sithila C | | | 1328 | SRI | 0.00 | 1 | -0.21 | 40 | -8.40 | |  Sutharson, S T | | | 1056 | SRI | 0.50 | 1 | -0.05 | 40 | -2.00 | | | Herath, H M M D | | | 1178 | SRI | 0.50 | 1 | 0.11 | 40 | 4.40 | | | Thenuwara, Rashmika | | | 1275 | SRI | 0.00 | 1 | -0.26 | 40 | -10.40 | |
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) | | | | 3rd Kolonnawa International Rating Chess Championship 2017 | Colombo | SRI | 2017-12-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1249 | 1095 | 0.50 | 4 | -0.67 | 40 | -26.80 | |
| | Perera, D G D Y Adeekshana | | | 1297 | SRI | 0.00 | 1 | -0.24 | 40 | -9.60 | | | Pallie, Ehsha Mishela | | wc | 1249 | SRI | 0.00 | 1 | -0.29 | 40 | -11.60 | | | Arunakirinathan, Aruthran | | | 1225 | SRI | 0.50 | 1 | 0.18 | 40 | 7.20 | | | Gamarathne, Oneth | | | 1226 | SRI | 0.00 | 1 | -0.32 | 40 | -12.80 | |
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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