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Individual Calculations September 2015 |
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| Walatara, Shenal Total change: 0.00 | |   |
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| National Amateur Chess Championship 2015 | Colombo | SRI | 2015-08-05 |
| Rc | Ro | w | n | change | Rp | K | K*chg | Game |
| 1150 | 0 | 1.50 | 5 | 0.00 | 1001 | | 0.00 | |
|  Jayaweera Gamage, Disindu Hansad | | | 1146 | SRI | 0.50 | 1 | 0.00 | | 0.00 | |  Gamage, Ovin Vidmal | | | 1425 | SRI | 0.00 | 1 | 0.00 | | 0.00 | | | Rajapaksha, Isum Asitha | | | 1048 | SRI | 1.00 | 1 | 0.00 | | 0.00 | | | Rathnayaka, Anjana Katugaha | | | 1100 | SRI | 0.00 | 1 | 0.00 | | 0.00 | | | Wimaladharma, W Jithain Oshadha | | | 1032 | SRI | 0.00 | 1 | 0.00 | | 0.00 | |
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) | | | | Sri Lanka Open Chess Championship 2015 | Colombo | SRI | 2015-08-20 |
| Rc | Ro | w | n | change | Rp | K | K*chg | Game |
| 1153 | 0 | 0.50 | 4 | 0.00 | 831 | | 0.00 | |
| | Karunaratne, Rahel Chaanakya | | | 1112 | SRI | 0.50 | 1 | 0.00 | | 0.00 | | | Nanayakkara, K G Rishitha Shenal | | | 1119 | SRI | 0.00 | 1 | 0.00 | | 0.00 | | | Samarakoon, Hevidu | | | 1261 | SRI | 0.00 | 1 | 0.00 | | 0.00 | | | Perera, G A Lakindu Chandira | | | 1120 | SRI | 0.00 | 1 | 0.00 | | 0.00 | |
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) | | |
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