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Individual Calculations October 2017 |
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| Perera, G S M Total change: 10.00 | |   |
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| 3rd Negombo Chess Festival 2017 | Negombo, Sri lanka | SRI | 2017-08-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1453 | 1171 | 1.50 | 5 | 0.68 | 40 | 27.20 | |
|  Kodithuwakku, Lisara | | | 1530 | SRI | 0.50 | 1 | 0.40 | 40 | 16.00 | |  Sahasra, A P Sasindu | | | 1417 | SRI | 0.00 | 1 | -0.19 | 40 | -7.60 | | | De Silva, J I Ajantha | | | 1386 | SRI | 0.00 | 1 | -0.23 | 40 | -9.20 | | | Perera, Thilina | | | 1477 | SRI | 1.00 | 1 | 0.86 | 40 | 34.40 | | | Dissanayake, Manusha Dinuk | | | 1456 | SRI | 0.00 | 1 | -0.16 | 40 | -6.40 | |
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) | | | | 8th Kandy Open International Rating Chess Championship 2017 | Kandy | SRI | 2017-08-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1511 | 1171 | 0.50 | 4 | 0.02 | 40 | 0.80 | |
| | Sathkumara, S M H D | | | 1479 | SRI | 0.50 | 1 | 0.36 | 40 | 14.40 | | | Dahanayake, Kalindu | | | 1525 | SRI | 0.00 | 1 | -0.11 | 40 | -4.40 | | | Gunarathna, D A Viraj Darshana | | | 1467 | SRI | 0.00 | 1 | -0.15 | 40 | -6.00 | | | Yapa Bandara, Chamodya | | | 1571 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | * 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) | | | | Sri Lanka Inter University Chess Championship 2017 | Nugegoda | SRI | 2017-09-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1528 | 1171 | 0.00 | 4 | -0.45 | 40 | -18.00 | |
| | Munasinghe, Lahiru | | | 1571 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Pathiraja, P M G D | | | 1398 | SRI | 0.00 | 1 | -0.21 | 40 | -8.40 | | | Samaranayake, K P R N | | | 1571 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Subasinghe, D D C H | | | 1571 * | SRI | 0.00 | 1 | -0.08 | 40 | -3.20 | | | * 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) | | |
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