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Individual Calculations June 2023 |
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| Kannangara, Ranul Insitha Total change: -2.80 | |   |
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| Sri Lanka National Youth Chess Championship 2023 - Under 12Yrs Open | Colombo | SRI | 2023-04-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1301 | 1079 | 0.50 | 3 | -0.19 | 40 | -7.60 | |
|  Wimalarathne, K G | | | 1437 | SRI | 0.00 | 1 | -0.10 | 40 | -4.00 | |  Kodithuwakku, K A Sadula Kausara | | | 1196 | SRI | 0.50 | 1 | 0.16 | 40 | 6.40 | | | Labunahewage, Dulein Bimsath | | | 1271 | SRI | 0.00 | 1 | -0.25 | 40 | -10.00 | |
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) | | | | 5th SSC Open International Rating Chess Championship 2023 | Matara | SRI | 2023-04-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1322 | 1079 | 1.50 | 5 | 0.44 | 40 | 17.60 | |
| | Laksiri, A A Kavishka Gimshan | | | 1485 | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Pathmasiri, R D Isuru Saranga | | | 1285 | SRI | 0.00 | 1 | -0.24 | 40 | -9.60 | | | Dissanayaka, M A P Mihiranga | | | 1384 | SRI | 1.00 | 1 | 0.86 | 40 | 34.40 | | | Fernando, B Thishya Methsandi | | | 1240 | SRI | 0.50 | 1 | 0.21 | 40 | 8.40 | | | Wadduwage, Thamindu Upeksha | | | 1218 | SRI | 0.00 | 1 | -0.31 | 40 | -12.40 | |
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 |
| 1421 | 1156 | 0.50 | 2 | 0.14 | 40 | 5.60 | |
| | Mathes Arachchi, Bhanila M | | | 1488 | SRI | 0.50 | 1 | 0.38 | 40 | 15.20 | | | Pathmasiri, R D Isuru Saranga | | | 1354 | SRI | 0.00 | 1 | -0.24 | 40 | -9.60 | |
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) | | | | 1st Rahulians International Chess Festival 2023 | Matara | SRI | 2023-05-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1371 | 1156 | 0.00 | 2 | -0.46 | 40 | -18.40 | |
| | Arachchi, C S A | | | 1400 | SRI | 0.00 | 1 | -0.20 | 40 | -8.00 | | | Pesanjith, M T H Sansutha | | | 1341 | SRI | 0.00 | 1 | -0.26 | 40 | -10.40 | |
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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