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Individual Calculations August 2023 |
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| Sanuda, Rehan Total change: 14.00 | |   |
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| Sri Lanka Open Chess Championship 2023 | Colombo | SRI | 2023-06-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1511 | 1342 | 2.50 | 6 | 0.50 | 20 | 10.00 | |
|  Sivathanujan, S | | | 1828 | SRI | 0.00 | 1 | -0.04 | 20 | -0.80 | | | Kannangara, Ranul Insitha | | | 1153 | SRI | 1.00 | 1 | 0.25 | 20 | 5.00 | | | Induwara, T H D Thisarindu | | | 1606 | SRI | 0.00 | 1 | -0.18 | 20 | -3.60 | |  Gamage, P Lakindu Chamalka | | | 1106 | SRI | 1.00 | 1 | 0.20 | 20 | 4.00 | | | Laksiri, A A Kavishka Gimshan | | | 1705 | SRI | 0.50 | 1 | 0.40 | 20 | 8.00 | | | Alahakoon, T N | | | 1669 | SRI | 0.00 | 1 | -0.13 | 20 | -2.60 | |
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) | | | | Sri Lanka National Team Chess Championship 2023 | Colombo | SRI | 2023-07-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1422 | 1342 | 2.00 | 4 | 0.20 | 20 | 4.00 | |
| | Yumeth, K L A Venuka | | | 1205 | SRI | 1.00 | 1 | 0.32 | 20 | 6.40 | | | Premachandra, G T D M | | | 1915 | SRI | 0.00 | 1 | -0.02 | 20 | -0.40 | | | Hansana, G Haritha | c | | 1554 | SRI | 0.00 | 1 | -0.23 | 20 | -4.60 | | | Munasinghe, M A V N | | | 1014 | SRI | 1.00 | 1 | 0.13 | 20 | 2.60 | |
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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