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Individual Calculations September 2016 |
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| Withanarachchi, W A P I Total change: 64.80 | |   |
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| Commonwealth Chess Championship 2016 - Under 12 Boys | Waskaduwa | SRI | 2016-07-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1474 | 1293 | 4.50 | 9 | 1.91 | 40 | 76.40 | |
|  Harrikizhan, K C | | | 1445 | SRI | 1.00 | 1 | 0.70 | 40 | 28.00 | |  Lansakara, B M | | | 1305 | SRI | 1.00 | 1 | 0.52 | 40 | 20.80 | | | Kodithuwakku, Lisara | | | 1549 | SRI | 1.00 | 1 | 0.81 | 40 | 32.40 | | | Raja, Rithvik R | c | | 1693 * | IND | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Dahanayake, Isara Banidu | | | 1440 | SRI | 0.00 | 1 | -0.30 | 40 | -12.00 | | | Cheah, Kah Hoe | | | 1681 | MAS | 0.00 | 1 | -0.09 | 40 | -3.60 | | | Silva, Kevin Ranidu | c | | 1526 | SRI | 0.00 | 1 | -0.21 | 40 | -8.40 | | | Oosthuizen, Michal Jacobus | | | 1357 | RSA | 0.50 | 1 | 0.09 | 40 | 3.60 | | | Athukorala, A T N | | | 1268 | SRI | 1.00 | 1 | 0.47 | 40 | 18.80 | | | * 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) | | | | Negombo Chess Festival 2016. | Negombo | SRI | 2016-08-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1366 | 1293 | 1.50 | 4 | -0.29 | 40 | -11.60 | |
| | Madusanka, L D P | | | 1693 * | SRI | 0.50 | 1 | 0.42 | 40 | 16.80 | | | Lasitha, Subash | c | | 1693 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Saravanabaavan, Yughatharoon | | | 1053 | SRI | 0.00 | 1 | -0.80 | 40 | -32.00 | | | Herath, M Sanumi Nehansa | | | 1025 | SRI | 1.00 | 1 | 0.17 | 40 | 6.80 | | | * 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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