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Individual Calculations February 2020 |
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| Perera, D Upashan L Total change: -162.80 | |   |
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| Sri Lanka National Youth Chess Championship 2019 - Under 17 years | Colombo | SRI | 2019-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1275 | 1551 | 3.50 | 7 | -2.25 | 40 | -90.00 | |
|  Suraweera, M C H Jananath | | | 1155 | SRI | 1.00 | 1 | 0.08 | 40 | 3.20 | |  Perera, Mulina | | | 1231 | SRI | 1.00 | 1 | 0.13 | 40 | 5.20 | | | Sanuda, Rehan | | | 1273 | SRI | 0.00 | 1 | -0.83 | 40 | -33.20 | | | Dissanayake , Sithila C | | | 1394 | SRI | 0.50 | 1 | -0.21 | 40 | -8.40 | | | Dissanayake, Manusha Dinuk | | | 1407 | SRI | 0.00 | 1 | -0.69 | 40 | -27.60 | | | Wanigasundara, W M H | | | 1291 | SRI | 1.00 | 1 | 0.18 | 40 | 7.20 | | | Uyanwaththa, W M S B | | | 1176 | SRI | 0.00 | 1 | -0.91 | 40 | -36.40 | |
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) | | | | Kaluthara International Chess Festival 2020 | Kaluthara | SRI | 2020-01-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1194 | 1569 | 4.50 | 7 | -1.82 | 40 | -72.80 | |
| | Hewadikaran, Isuka Manudula | | | 1169 * | SRI | 0.00 | 1 | -0.92 | 40 | -36.80 | | | Desurra, G P Damsilu | | | 1169 * | SRI | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Weerasekara, Dinul Vinsitha | | | 1230 | SRI | 0.50 | 1 | -0.38 | 40 | -15.20 | | | Nimsara, S A D Tharindu | | | 1180 | SRI | 0.50 | 1 | -0.41 | 40 | -16.40 | | | Weerawardana, Ushan Thashitha K | | | 1227 | SRI | 0.50 | 1 | -0.38 | 40 | -15.20 | | | Premathilaka, W P P G Sampath | | | 1169 * | SRI | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Uyanwaththa, W M S B | | | 1216 | SRI | 1.00 | 1 | 0.11 | 40 | 4.40 | | | * 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) | | |
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