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Individual Calculations November 2023 |
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| Jayasooriya, Ruvin Sandharu Total change: 13.60 | |   |
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| Sri Lanka Junior National Chess Championship 2023 | Kandy | SRI | 2023-08-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1239 | 1199 | 1.50 | 5 | -0.84 | 40 | -33.60 | |
|  Dharmasena, W M S S B | | | 1558 | SRI | 0.00 | 1 | -0.10 | 40 | -4.00 | | | Welikumbura, S D | | | 1043 | SRI | 0.50 | 1 | -0.21 | 40 | -8.40 | |  Bandara, K M T D Anjuka | | | 1090 | SRI | 0.00 | 1 | -0.65 | 40 | -26.00 | | | Jayalath, P M C V | | | 1038 | SRI | 1.00 | 1 | 0.29 | 40 | 11.60 | | | Wimalarathne, K G | | | 1467 | SRI | 0.00 | 1 | -0.17 | 40 | -6.80 | |
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) | | | | Kandy Open International Rating Chess Championships 2023 | Kandy | SRI | 2023-09-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1321 | 1199 | 4.50 | 8 | 1.18 | 40 | 47.20 | |
| | Mahindrakar, Indrajeet | | | 1990 | IND | 0.00 | 1 | 0.00 | 40 | 0.00 | | | Fonseka, Thanura Manthila | | | 1055 | SRI | 1.00 | 1 | 0.31 | 40 | 12.40 | | | Karunarathne, K M H B | | | 1421 | SRI | 0.50 | 1 | 0.28 | 40 | 11.20 | | | Senevirathne, D C B K | | | 1476 | SRI | 0.00 | 1 | -0.17 | 40 | -6.80 | | | Maddumage, Neksha P | | | 1094 | SRI | 1.00 | 1 | 0.36 | 40 | 14.40 | | | Sanjeevarajah, J | | | 1075 | SRI | 1.00 | 1 | 0.33 | 40 | 13.20 | | | Manuranga, D Lahiru | | | 1360 | SRI | 0.00 | 1 | -0.29 | 40 | -11.60 | | | Niklesh, D G Rushitha Vijan | | | 1093 | SRI | 1.00 | 1 | 0.36 | 40 | 14.40 | |
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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