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Individual Calculations February 2023 |
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| Nagahawatta, Nisal Sankalpa Total change: 24.80 | |   |
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| Kandy Open International Rating Chess Championships 2022 | Kandy | SRI | 2022-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1426 | 1006 | 1.50 | 4 | 1.19 | 40 | 47.60 | |
|  Kulathilake, S M M P | | | 1461 | SRI | 0.00 | 1 | -0.06 | 40 | -2.40 | |  Pinnagoda, P G Anuhas Suradunu | | | 1378 | SRI | 0.00 | 1 | -0.10 | 40 | -4.00 | | | Sanuda, Rehan | | | 1358 | SRI | 0.50 | 1 | 0.39 | 40 | 15.60 | | | Hemachandra, P R T M | | | 1505 | SRI | 1.00 | 1 | 0.96 | 40 | 38.40 | |
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) | | | | Colombo District Youth Chess Championships 2023 - Under 18 | Dehiwala | SRI | 2023-01-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1273 | 1006 | 0.00 | 2 | -0.51 | 40 | -20.40 | |
| | Laksiri, A A Kavishka Gimshan | | | 1517 | SRI | 0.00 | 1 | -0.04 | 40 | -1.60 | | | Siriwardene, R B Bihandu Janandit | | | 1028 | SRI | 0.00 | 1 | -0.47 | 40 | -18.80 | |
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) | | | | Kaluthara International Chess Festival 2023 | Kaluthara | SRI | 2023-01-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1683 | 1006 | 0.00 | 2 | -0.06 | 40 | -2.40 | |
| | Alahakoon, Isuru | f | | 1925 | SRI | 0.00 | 1 | 0.00 | 40 | 0.00 | | | Jayaweera, Hashan | | | 1441 | SRI | 0.00 | 1 | -0.06 | 40 | -2.40 | |
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) | | |
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