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Individual Calculations August 2023 |
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| Sandaruwan, M G Ravindu Total change: -22.80 | |   |
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| Sri Lanka Open Chess Championship 2023 | Colombo | SRI | 2023-06-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1398 | 1425 | 4.50 | 8 | 0.06 | 40 | 2.40 | |
|  Wickramaarachchi, Yesandi | | | 1064 | SRI | 1.00 | 1 | 0.10 | 40 | 4.00 | |  Bimansa, D G Jayandi | | | 1208 | SRI | 1.00 | 1 | 0.22 | 40 | 8.80 | | | Pathum, G Saranga | | | 1655 | SRI | 0.50 | 1 | 0.29 | 40 | 11.60 | | | Jayaweera, Y | | | 1743 | SRI | 0.00 | 1 | -0.13 | 40 | -5.20 | | | Fernando, Mayon Dinuth Mindula | | | 1145 | SRI | 1.00 | 1 | 0.16 | 40 | 6.40 | | | Jayasundara, P K U M | c | | 1938 | SRI | 0.00 | 1 | -0.04 | 40 | -1.60 | | | Siriwardene, R B Sithum Nevanjith | | | 1176 | SRI | 1.00 | 1 | 0.19 | 40 | 7.60 | | | Sanviru, G H A Dulnith | | | 1253 | SRI | 0.00 | 1 | -0.73 | 40 | -29.20 | |
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) | | | | Sri Lanka National Team Chess Championship 2023 | Colombo | SRI | 2023-07-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1308 | 1450 | 1.00 | 2 | -0.38 | 40 | -15.20 | |
| | Amarasinghe, Senith Ranmika | | | 1291 | SRI | 0.00 | 1 | -0.71 | 40 | -28.40 | | | Sathsara, E P Daham | | | 1324 | SRI | 1.00 | 1 | 0.33 | 40 | 13.20 | |
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) | | | | Asian Schools Chess Championship U17 Open | Tashkent | UZB | 2023-07-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1615 | 1450 | 2.00 | 7 | -0.25 | 40 | -10.00 | |
| | Senevirathne, S D B K | | | 1806 | SRI | 0.00 | 1 | -0.11 | 40 | -4.40 | | | Ravshanov, Sheralijon | | | 1916 | UZB | 0.00 | 1 | -0.05 | 40 | -2.00 | | | Pavlov, Egor | | | 1520 | FID | 0.00 | 1 | -0.40 | 40 | -16.00 | | | Al-Mansouri, Fahad | | | 1050 * | QAT | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Naziraliev, Kilichbek | | | 1508 | UZB | 1.00 | 1 | 0.58 | 40 | 23.20 | | | Tapaev, Totuhan | | | 1907 | KGZ | 0.00 | 1 | -0.05 | 40 | -2.00 | | | Toshboev, Diyorbek | | | 1601 | UZB | 0.00 | 1 | -0.30 | 40 | -12.00 | | | * 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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