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Individual Calculations June 2023 |
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| Wadduwage, Thamindu Upeksha Total change: -30.00 | |   |
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| 5th SSC Open International Rating Chess Championship 2023 | Matara | SRI | 2023-04-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1228 | 1218 | 2.50 | 5 | -0.33 | 40 | -13.20 | |
|  Kaluarachchi, Achinthya Shamen | | | 1884 | SRI | 0.00 | 1 | -0.01 | 40 | -0.40 | | | Gamlath, E G Y T | | | 1092 | SRI | 0.50 | 1 | -0.17 | 40 | -6.80 | |  Mettananda, W M D Rashmitha | | | 1019 | SRI | 0.50 | 1 | -0.26 | 40 | -10.40 | | | Thamilkkumaran, Kannan | | | 1068 | SRI | 0.50 | 1 | -0.20 | 40 | -8.00 | | | Kannangara, Ranul Insitha | | | 1079 | SRI | 1.00 | 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 |
| 1292 | 1218 | 2.00 | 5 | -0.25 | 40 | -10.00 | |
| | Wijekoon, Chandana | c | | 1750 | SRI | 0.00 | 1 | -0.03 | 40 | -1.20 | | | Bandara, B G S N R | | | 1143 | SRI | 0.00 | 1 | -0.60 | 40 | -24.00 | | | Piyantha, M A G A | | | 1040 | SRI | 1.00 | 1 | 0.27 | 40 | 10.80 | | | Fernando, Diyon Senuth Randilu | | | 1111 | SRI | 1.00 | 1 | 0.35 | 40 | 14.00 | | | Rajawasala, R U D Janith Dulmina | | | 1417 | 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 |
| 1310 | 1218 | 1.50 | 4 | -0.17 | 40 | -6.80 | |
| | Janukshan, B | | | 1652 | SRI | 0.00 | 1 | -0.06 | 40 | -2.40 | | | Thewmali, R K Nuthara | | | 1059 | SRI | 1.00 | 1 | 0.29 | 40 | 11.60 | | | Hansana, G Haritha | c | | 1442 | SRI | 0.00 | 1 | -0.22 | 40 | -8.80 | | | Sethumsa, R B Hasadi | | | 1086 | SRI | 0.50 | 1 | -0.18 | 40 | -7.20 | |
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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