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Individual Calculations October 2017 |
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| Jayawickrama, U W R K Total change: 43.60 | |   |
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| Southern International Chess Championship 2017 | Galle | SRI | 2017-08-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1134 | 1261 | 1.00 | 1 | 0.33 | 20 | 6.60 | |
|  Costha, M Yomali Muthumini | | | 1134 | SRI | 1.00 | 1 | 0.33 | 20 | 6.60 | |
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) | | | | 3rd Negombo Chess Festival 2017 | Negombo, Sri lanka | SRI | 2017-08-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1373 | 1261 | 4.00 | 7 | 1.24 | 20 | 24.80 | |
| | Dickmadugodage, Ravi Prabath | | | 1661 * | SRI | 0.00 | 1 | -0.08 | 20 | -1.60 | |  Liyanage, R L Mihini B | | wc | 1053 | SRI | 1.00 | 1 | 0.23 | 20 | 4.60 | | | Weerasooriya, Senith D Jagoda | | | 1105 | SRI | 1.00 | 1 | 0.29 | 20 | 5.80 | | | Dabarera, G W D M | | | 1661 * | SRI | 0.50 | 1 | 0.42 | 20 | 8.40 | | | Mehalathan, Sivakumar | | | 1625 | SRI | 0.00 | 1 | -0.10 | 20 | -2.00 | | | Herath, H M S S A | | | 1472 | SRI | 0.50 | 1 | 0.27 | 20 | 5.40 | | | Wijerathne, M M H T | | | 1031 | SRI | 1.00 | 1 | 0.21 | 20 | 4.20 | | | * 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) | | | | 8th Kandy Open International Rating Chess Championship 2017 | Kandy | SRI | 2017-08-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1349 | 1261 | 4.00 | 8 | 0.61 | 20 | 12.20 | |
| | Dissanayake, R K T | | | 1661 * | SRI | 0.50 | 1 | 0.42 | 20 | 8.40 | | | Lakshitha, H H Sasindu | | | 1661 * | SRI | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Akuratiya, A G Javindi Avarjana | | | 1076 | SRI | 0.50 | 1 | -0.24 | 20 | -4.80 | | | De Silva, L H L Manuja Lakshitha | | | 1057 | SRI | 1.00 | 1 | 0.24 | 20 | 4.80 | | | Vidyarathna, Anjitha | | | 1498 | SRI | 0.00 | 1 | -0.20 | 20 | -4.00 | | | Ronaldo, L H K | | | 1074 | SRI | 1.00 | 1 | 0.26 | 20 | 5.20 | | | Kalubowila, K H N | | | 1661 * | SRI | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Saravanabaavan, Yughatharoon | | | 1107 | SRI | 1.00 | 1 | 0.29 | 20 | 5.80 | | | * 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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