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Individual Calculations August 2023 |
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| Sivathanujan, S Total change: 9.20 | |   |
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| Sri Lanka Open Chess Championship 2023 | Colombo | SRI | 2023-06-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1558 | 1828 | 6.50 | 8 | 0.18 | 20 | 3.60 | |
|  Kumarasinghe, P Sandaru Kaushal | | | 1428 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Sanuda, Rehan | | | 1342 | SRI | 1.00 | 1 | 0.04 | 20 | 0.80 | | | Thennakoon, Disara | | | 1441 | SRI | 1.00 | 1 | 0.09 | 20 | 1.80 | | | Insara, S D Nadev | | | 1537 | SRI | 1.00 | 1 | 0.15 | 20 | 3.00 | | | Dissanayake, R K T | | | 1882 | SRI | 0.00 | 1 | -0.42 | 20 | -8.40 | | | Gamage, Ovin Vidmal | | | 1568 | SRI | 1.00 | 1 | 0.18 | 20 | 3.60 | | | Hettiarachchi, Jeewantha Aloka | | | 1460 | SRI | 1.00 | 1 | 0.10 | 20 | 2.00 | | | Gunaratne, Mojitha Sathsara | c | | 1802 | SRI | 0.50 | 1 | -0.04 | 20 | -0.80 | | | * 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) | | | | Sri Lanka National Team Chess Championship 2023 | Colombo | SRI | 2023-07-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1671 | 1821 | 3.50 | 5 | 0.28 | 20 | 5.60 | |
| | Kalugampitiya, R S | f | | 2121 | SRI | 0.00 | 1 | -0.15 | 20 | -3.00 | | | Nerujan, N | | | 1421 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Thilakarathne, H M G G | | | 1351 | SRI | 1.00 | 1 | 0.05 | 20 | 1.00 | | | Akasha, J P Vihanga | | | 1547 | SRI | 1.00 | 1 | 0.17 | 20 | 3.40 | | | Randil, Lakshitha | | | 1915 | SRI | 0.50 | 1 | 0.13 | 20 | 2.60 | | | * 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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