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Individual Calculations June 2023 |
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| Akuratiya, A G Javindi Avarjana Total change: -10.15 | |   |
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| Sri Lanka Women's National Chess Championship 2023 | Colombo | SRI | 2023-03-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1514 | 1271 | 3.50 | 13 | 0.62 | 29 | 17.98 | |
|  Yapa Bandara, Chamodya | | | 1455 | SRI | 1.00 | 1 | 0.74 | 29 | 21.46 | |  Newansa, M Esandi | | | 1581 | SRI | 0.00 | 1 | -0.14 | 29 | -4.06 | | | Ramanayake, Nemindi Linaya | | | 1400 | SRI | 0.00 | 1 | -0.33 | 29 | -9.57 | | | Tharushi, T H D Niklesha | | wc | 1574 | SRI | 0.00 | 1 | -0.14 | 29 | -4.06 | | | Pallie, Ehsha Mishela | | wc | 1536 | SRI | 0.00 | 1 | -0.18 | 29 | -5.22 | | | Abeysinghe, H M H Janandani | | | 1425 | SRI | 0.00 | 1 | -0.29 | 29 | -8.41 | | | Chamathka, W A Chethani | | | 1317 | SRI | 1.00 | 1 | 0.56 | 29 | 16.24 | | | Sanudula, K M Dahamdi | | wc | 1732 | SRI | 0.00 | 1 | -0.05 | 29 | -1.45 | | | Ranganath, Tharuli Vihasna | | | 1282 | SRI | 0.50 | 1 | 0.02 | 29 | 0.58 | | | Jayaweera, Sayuni Gihansa | | wc | 1641 | SRI | 0.00 | 1 | -0.10 | 29 | -2.90 | | | Udagedara, Sandali Kanishka | | | 1498 | SRI | 0.50 | 1 | 0.29 | 29 | 8.41 | | | Wijesuriya, G P Y | | wc | 1511 | SRI | 0.00 | 1 | -0.20 | 29 | -5.80 | | | Ranasinghe, S D | | wm | 1727 | SRI | 0.50 | 1 | 0.44 | 29 | 12.76 | |
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 Youth Chess Championship 2023 - Under 16Yrs Girls | Colombo | SRI | 2023-04-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1193 | 1271 | 2.50 | 5 | -0.53 | 29 | -15.37 | |
| | Madugalla, Nisandi Hesara | | | 1125 | SRI | 0.50 | 1 | -0.20 | 29 | -5.80 | | | Silva, U M Himaya Shalindi | | | 1154 | SRI | 1.00 | 1 | 0.34 | 29 | 9.86 | | | Ramanayake, Nemindi Linaya | | | 1400 | SRI | 0.00 | 1 | -0.33 | 29 | -9.57 | | | Hidurangala, H D Binuri Dulanga | | | 1088 | SRI | 1.00 | 1 | 0.26 | 29 | 7.54 | | | Sandanayake, Dehansa Nisanduni | | | 1199 | SRI | 0.00 | 1 | -0.60 | 29 | -17.40 | |
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 International Chess Festival 2023 | Colombo | SRI | 2023-05-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1263 | 1366 | 3.50 | 6 | -0.44 | 29 | -12.76 | |
| | Wijewardane, Sharin | | | 1118 | SRI | 1.00 | 1 | 0.19 | 29 | 5.51 | | | Wickramaarachchi, Gayaru Chamsara | | | 1120 | SRI | 0.50 | 1 | -0.31 | 29 | -8.99 | | | Maitipe, M T Anuja Nadun | | | 1117 | SRI | 1.00 | 1 | 0.19 | 29 | 5.51 | | | Amarasinghe, A A C B | c | | 1843 | SRI | 0.00 | 1 | -0.05 | 29 | -1.45 | | | Mayadunna, D Vihan Sanija | | | 1160 | SRI | 1.00 | 1 | 0.24 | 29 | 6.96 | | | Alwis, Jenuki | | | 1219 | SRI | 0.00 | 1 | -0.70 | 29 | -20.30 | |
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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