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Individual Calculations June 2023 |
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| Weerathungalage, W D Malisha Sasv Total change: -40.28 | |   |
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| Supr Knights Open International Rating Chess Championship 2023 | Colombo | SRI | 2023-04-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1458 | 1459 | 6.00 | 8 | 1.89 | 38 | 71.82 | |
|  Arachchi, B A M | | | 1075 | SRI | 1.00 | 1 | 0.09 | 38 | 3.42 | |  Sandanayake, Dehansa Nisanduni | | | 1199 | SRI | 1.00 | 1 | 0.18 | 38 | 6.84 | | | Gowsalyan, S | | | 1368 | SRI | 1.00 | 1 | 0.38 | 38 | 14.44 | | | Mathes Arachchi, Bhanila M | | | 1396 | SRI | 1.00 | 1 | 0.41 | 38 | 15.58 | | | Peiris, T S S | f | | 1882 | SRI | 1.00 | 1 | 0.93 | 38 | 35.34 | | | Sivathanujan, S | | | 1833 | SRI | 0.00 | 1 | -0.10 | 38 | -3.80 | | | Munasinghe, M A D D D | | | 1061 | SRI | 1.00 | 1 | 0.08 | 38 | 3.04 | | | Bandara, Dhanushka | | | 1853 | SRI | 0.00 | 1 | -0.08 | 38 | -3.04 | |
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) | | | | 5th SSC Open International Rating Chess Championship 2023 | Matara | SRI | 2023-04-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1158 | 1459 | 2.00 | 4 | -1.40 | 38 | -53.20 | |
| | Sooriyapperuma, S V P P | | | 1067 | SRI | 1.00 | 1 | 0.08 | 38 | 3.04 | | | Kasthuriarachchi, K A Risindu Man | | | 1211 | SRI | 0.00 | 1 | -0.81 | 38 | -30.78 | | | Indumina, H G Randula | | | 1120 | SRI | 1.00 | 1 | 0.12 | 38 | 4.56 | | | Nimthaka, U J Nimuthu | | | 1233 | SRI | 0.00 | 1 | -0.79 | 38 | -30.02 | |
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 |
| 1303 | 1604 | 3.50 | 6 | -1.55 | 38 | -58.90 | |
| | De Silva, B P Chanthuli Thanishka | | | 1139 | SRI | 1.00 | 1 | 0.05 | 38 | 1.90 | | | Sampath, H K G | | | 1204 * | SRI | 1.00 | 1 | 0.08 | 38 | 3.04 | | | Manuwaruna, Sethun Neththaru | | | 1345 | SRI | 0.00 | 1 | -0.82 | 38 | -31.16 | | | Wimalasiri, Ransith Pabalu | | | 1318 | SRI | 1.00 | 1 | 0.16 | 38 | 6.08 | | | Wickramaarachchi, Nayanaka Insara | | | 1404 | SRI | 0.50 | 1 | -0.26 | 38 | -9.88 | | | Insara, S D Nadev | | | 1406 | SRI | 0.00 | 1 | -0.76 | 38 | -28.88 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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