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| CFSL Golden Jubilee International Rating Chess Tournament 2022 | Colombo | SRI | 2022-11-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1270 | 1475 | 7.50 | 9 | 0.92 | 21 | 19.32 | |
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 Nawanjana, R A Thaweesha | | | 1162 | SRI | 1.00 | 1 | 0.14 | 21 | 2.94 | |
 Kodithuwakku, K A Chathura Basuru | | | 1235 | SRI | 1.00 | 1 | 0.20 | 21 | 4.20 | |
| Sivathanujan, S | | | 1729 | SRI | 0.00 | 1 | -0.19 | 21 | -3.99 | |
| Wadduwage, Thamindu Upeksha | | | 1075 * | SRI | 0.50 | 1 | -0.42 | 21 | -8.82 | |
| Gnanaseelan, Jude Dorison | | | 1445 | SRI | 1.00 | 1 | 0.46 | 21 | 9.66 | |
| Fernando, Mayon Dinuth Mindula | | | 1138 | SRI | 1.00 | 1 | 0.12 | 21 | 2.52 | |
| Amarathunga, Kosala Sandeepa Cham | | | 1389 | SRI | 1.00 | 1 | 0.38 | 21 | 7.98 | |
| Amarathunga, Piyumi Uthpala | | | 1165 | SRI | 1.00 | 1 | 0.14 | 21 | 2.94 | |
| Liyanage, D Sathini Disathna | | | 1089 | SRI | 1.00 | 1 | 0.09 | 21 | 1.89 | |
| * 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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| Kandy Open International Rating Chess Championships 2022 | Kandy | SRI | 2022-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1312 | 1517 | 6.50 | 9 | -0.18 | 21 | -3.78 | |
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| Bandara, Lakshika Sathsarani | | | 1117 * | SRI | 1.00 | 1 | 0.08 | 21 | 1.68 | |
| Deshapriya, A M M Nandula | | | 1166 | SRI | 1.00 | 1 | 0.11 | 21 | 2.31 | |
| Bandara, Prathibha Nethsarani | | | 1285 | SRI | 1.00 | 1 | 0.21 | 21 | 4.41 | |
| Amarasinghe, A A C B | c | | 1908 | SRI | 0.00 | 1 | -0.09 | 21 | -1.89 | |
| Fernando, H Gayaru Dulsara | | | 1222 | SRI | 1.00 | 1 | 0.15 | 21 | 3.15 | |
| De Silva, L H L Manuja Lakshitha | | | 1297 | SRI | 0.00 | 1 | -0.78 | 21 | -16.38 | |
| Galkotuwa, K A R G W S N B I | | | 1112 | SRI | 1.00 | 1 | 0.08 | 21 | 1.68 | |
| Galkotuwa, K A R G W D R B G | | | 1331 | SRI | 1.00 | 1 | 0.26 | 21 | 5.46 | |
| Hettiarachchi, Jeewantha Aloka | | | 1368 | SRI | 0.50 | 1 | -0.20 | 21 | -4.20 | |
| * 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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| Colombo District Youth Chess Championships 2023 - Under 18 | Dehiwala | SRI | 2023-01-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1115 | 1517 | 5.00 | 6 | -0.50 | 21 | -10.50 | |
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| Heenatigala, Nilusha Dewwan | | | 1052 | SRI | 1.00 | 1 | 0.05 | 21 | 1.05 | |
| Nagahawatta, Nisal Sankalpa | | | 1117 * | SRI | 1.00 | 1 | 0.08 | 21 | 1.68 | |
| Perera, G Thinuka Geethula | | | 1174 | SRI | 1.00 | 1 | 0.12 | 21 | 2.52 | |
| Hendavitharana, D S | | | 1214 | SRI | 0.00 | 1 | -0.86 | 21 | -18.06 | |
| Jayaweera, D A Thevindu Nimnal | | | 1102 | SRI | 1.00 | 1 | 0.07 | 21 | 1.47 | |
| Siriwardene, R B Bihandu Janandit | | | 1028 | SRI | 1.00 | 1 | 0.04 | 21 | 0.84 | |
| * 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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| Kaluthara International Chess Festival 2023 | Kaluthara | SRI | 2023-01-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1293 | 1517 | 6.50 | 9 | -0.30 | 21 | -6.30 | |
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| Thumaljith, A Thenuka | | | 1061 | SRI | 1.00 | 1 | 0.06 | 21 | 1.26 | |
| Thalgaswatta, Adeesha Denuwan | | | 1203 | SRI | 0.00 | 1 | -0.86 | 21 | -18.06 | |
| Perera, Hiruka Sandesh | | | 1117 * | SRI | 1.00 | 1 | 0.08 | 21 | 1.68 | |
| Sandaruwan, K E Dineth | | | 1189 | SRI | 1.00 | 1 | 0.13 | 21 | 2.73 | |
| Kodithuwakku, K A Chathura Basuru | | | 1277 | SRI | 1.00 | 1 | 0.20 | 21 | 4.20 | |
| Sanuda, Rehan | | | 1358 | SRI | 1.00 | 1 | 0.29 | 21 | 6.09 | |
| Bandara, Dhanushka | | | 1852 | SRI | 0.00 | 1 | -0.12 | 21 | -2.52 | |
| Pathmasiri, R D Isuru Saranga | | | 1297 | SRI | 1.00 | 1 | 0.22 | 21 | 4.62 | |
| Dandeniya, D D L N | | | 1280 | SRI | 0.50 | 1 | -0.30 | 21 | -6.30 | |
| * 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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