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Individual Calculations September 2019 |
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| Alwis, Randeepa Total change: -73.20 | |   |
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| Sri Lanka open International Rating Chess Championship 2019 | Anuradhapura | SRI | 2019-08-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1356 | 1291 | 2.00 | 4 | 0.21 | 40 | 8.40 | |
|  Obeysekara, T A Sajith Chathuran | | | 1666 | SRI | 0.00 | 1 | -0.09 | 40 | -3.60 | |  Wimalagunasekara, D Nithwara | | | 1081 | SRI | 1.00 | 1 | 0.23 | 40 | 9.20 | | | Seneviratne, Shehan Kavishka | | | 1644 | SRI | 0.00 | 1 | -0.11 | 40 | -4.40 | | | Herath, H M D L | | | 1033 | SRI | 1.00 | 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) | | | | 5th Negombo International chess Festival 2019 | Negombo | SRI | 2019-08-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1277 | 1291 | 0.00 | 3 | -1.64 | 40 | -65.60 | |
| | Senanayaka, P D | | | 1691 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Abhaywardhana, Nirma Pahasara | | | 1068 | SRI | 0.00 | 1 | -0.78 | 40 | -31.20 | | | Kamaradiwela, K A D M M | | | 1073 | SRI | 0.00 | 1 | -0.78 | 40 | -31.20 | | | * 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 |
| 1249 | 1291 | 3.00 | 6 | -0.40 | 40 | -16.00 | |
| | Dissanayake, D A Thavinsa Archani | | | 1030 | SRI | 0.00 | 1 | -0.82 | 40 | -32.80 | | | Saravanabaavan, Yughatharoon | | | 1072 | SRI | 1.00 | 1 | 0.22 | 40 | 8.80 | | | Manuwarana, Amila | | | 1017 | SRI | 1.00 | 1 | 0.17 | 40 | 6.80 | | | Fernando, G W Nethmi L | | | 1610 | SRI | 0.00 | 1 | -0.13 | 40 | -5.20 | | | Uyanwaththa, W M S B | | | 1119 | SRI | 1.00 | 1 | 0.27 | 40 | 10.80 | | | Uduwala, Pramod Dimuthu | | | 1648 | SRI | 0.00 | 1 | -0.11 | 40 | -4.40 | |
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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