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Individual Calculations September 2019 |
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| Dissanayake, D M Madushan Sameer Total change: 18.40 | |   |
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| 4th SSC Open International Rating chess Championship 2019 | Matara | SRI | 2019-08-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1326 | 1230 | 3.50 | 7 | 0.69 | 20 | 13.80 | |
|  Premachandra, G T D M | | | 1630 * | SRI | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Piyantha, M A G A | | | 1043 | SRI | 1.00 | 1 | 0.26 | 20 | 5.20 | |  Methmani, Nelunika | | wm | 1543 | SRI | 0.00 | 1 | -0.14 | 20 | -2.80 | | | Premathilaka, W P P G Sampath | | | 1042 | SRI | 1.00 | 1 | 0.26 | 20 | 5.20 | | | Insara, S D Nadev | | | 1045 | SRI | 1.00 | 1 | 0.26 | 20 | 5.20 | | | Abhimanyu, Iraja | | | 1475 | SRI | 0.50 | 1 | 0.30 | 20 | 6.00 | | | Deshappriya, D Kalindu | | | 1503 | SRI | 0.00 | 1 | -0.17 | 20 | -3.40 | | | * 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) | | | | 5th Negombo International chess Festival 2019 | Negombo | SRI | 2019-08-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1338 | 1230 | 0.50 | 4 | -1.14 | 20 | -22.80 | |
| | Yashora, Tiumi | | | 1630 * | SRI | 0.50 | 1 | 0.42 | 20 | 8.40 | | | Sudharshana, W Y Nimesh | | | 1630 * | SRI | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Gamage, B K Sayumi Hasithma | | | 1062 | SRI | 0.00 | 1 | -0.72 | 20 | -14.40 | | | Dissanayake, D A Thavinsa Archani | | | 1030 | SRI | 0.00 | 1 | -0.76 | 20 | -15.20 | | | * 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) | | | | 9th Kandy Open International Chess Festival 2019 | Kandy | SRI | 2019-08-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1414 | 1230 | 3.50 | 7 | 1.37 | 20 | 27.40 | |
| | Munasinghe, Shanaka | | | 1630 * | SRI | 0.50 | 1 | 0.42 | 20 | 8.40 | | | Deegoda, S R | | | 1630 * | SRI | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Herath, Pamudi | | | 1047 | SRI | 1.00 | 1 | 0.26 | 20 | 5.20 | | | Deshappriya, D Kalindu | | | 1503 | SRI | 1.00 | 1 | 0.83 | 20 | 16.60 | | | Madushanka, B W M Malith | | | 1545 | SRI | 0.00 | 1 | -0.14 | 20 | -2.80 | | | Jago, Stephen | | | 1528 | AUS | 0.00 | 1 | -0.15 | 20 | -3.00 | | | Gunasinghe, Isuru Sathsara | | | 1015 | SRI | 1.00 | 1 | 0.23 | 20 | 4.60 | | | * 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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