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Individual Calculations June 2023 |
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| Alwis, Jenuki Total change: 3.60 | |   |
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| Sri Lanka National Youth Chess Championship 2023 - Under 14Yrs Girls | Colombo | SRI | 2023-04-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1090 | 1219 | 1.50 | 4 | -1.19 | 40 | -47.60 | |
|  Gunathilake, H Viharshana Nilumin | | | 1092 | SRI | 0.00 | 1 | -0.67 | 40 | -26.80 | |  Vihanga, K A Yenuli | | | 1060 | SRI | 1.00 | 1 | 0.29 | 40 | 11.60 | | | Ranasinghe, R A Lihini Himansa | | | 1113 | SRI | 0.00 | 1 | -0.64 | 40 | -25.60 | | | Jayathissa, J Y | | | 1093 | SRI | 0.50 | 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) | | | | Colombo International Chess Festival 2023 | Colombo | SRI | 2023-05-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1263 | 1219 | 4.00 | 6 | 1.28 | 40 | 51.20 | |
| | Gunawardhana, Devindya Oshini | | | 1534 | SRI | 0.00 | 1 | -0.14 | 40 | -5.60 | | | Akshath, N Shree | | | 1029 | SRI | 1.00 | 1 | 0.25 | 40 | 10.00 | | | Wanniarachchi, Senuka Buvindu | | | 1084 | SRI | 1.00 | 1 | 0.32 | 40 | 12.80 | | | Ovitigala, Chenitha Mithvidu | | | 1456 | SRI | 0.00 | 1 | -0.20 | 40 | -8.00 | | | Ovitigala, Dehain Nethvidu | | | 1108 | SRI | 1.00 | 1 | 0.35 | 40 | 14.00 | | | Akuratiya, A G Javindi Avarjana | | | 1366 | SRI | 1.00 | 1 | 0.70 | 40 | 28.00 | |
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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