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Individual Calculations September 2015 |
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| Madusanka, L D P Total change: -46.80 | |   |
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| Mercantile / Government Services International Rating Chess Championship 2015 | Colombo | SRI | 2015-07-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1658 | 1740 | 4.00 | 6 | 0.47 | 20 | 9.40 | |
|  Selvakumar, Thangarajah | | | 1340 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Dissanayake, Ranura | | | 1622 | SRI | 1.00 | 1 | 0.34 | 20 | 6.80 | | | Fonseka, C K D | | | 1856 | SRI | 0.00 | 1 | -0.34 | 20 | -6.80 | | | Murali, V. | | | 1450 | SRI | 1.00 | 1 | 0.16 | 20 | 3.20 | | | Sheriff, T S | | | 1667 | SRI | 1.00 | 1 | 0.40 | 20 | 8.00 | | | Koggala, W S V K | | | 2012 | SRI | 0.00 | 1 | -0.17 | 20 | -3.40 | | | * 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) | | | | National Amateur Chess Championship 2015 | Colombo | SRI | 2015-08-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1508 | 1740 | 4.00 | 8 | -2.08 | 20 | -41.60 | |
| | Jayatissa, Chanuth Devnaka | | | 1340 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Dissanayake, Manusha Dinuk | | | 1477 | SRI | 1.00 | 1 | 0.18 | 20 | 3.60 | | | Lamawansa, Yasas | | | 1977 | SRI | 0.00 | 1 | -0.20 | 20 | -4.00 | | | Askey, Raveen Nimesh | | | 1530 | SRI | 0.50 | 1 | -0.27 | 20 | -5.40 | | | Nandika, Ruwan | | | 1486 | SRI | 0.00 | 1 | -0.81 | 20 | -16.20 | | | Deraniyagala, Vimukthi Prathap | | | 1340 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Jayaweera, Y | | | 1573 | SRI | 0.00 | 1 | -0.72 | 20 | -14.40 | | | Devnaka, Chamin | | | 1340 * | SRI | 0.50 | 1 | -0.42 | 20 | -8.40 | | | * 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) | | | | 6th Kandy Open International Rating Chess Championship | Kandy | SRI | 2015-08-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1463 | 1740 | 5.00 | 7 | -0.57 | 20 | -11.40 | |
| | Thilakasiri, P D | | | 1340 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Hansamali, H M Samudrika | | | 1372 | SRI | 1.00 | 1 | 0.10 | 20 | 2.00 | | | Chakravarthy, Y V K | | | 2041 | IND | 0.00 | 1 | -0.15 | 20 | -3.00 | | | Jayawardana, Lasal | | | 1342 | SRI | 0.00 | 1 | -0.92 | 20 | -18.40 | | | Jayawickrama, U W R K | | | 1340 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Yatawara, O L B | | | 1384 | SRI | 1.00 | 1 | 0.11 | 20 | 2.20 | | | Premarathne, H R S P | | | 1422 | SRI | 1.00 | 1 | 0.13 | 20 | 2.60 | | | * 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 Open Chess Championship 2015 | Colombo | SRI | 2015-08-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1594 | 1740 | 4.50 | 7 | -0.16 | 20 | -3.20 | |
| | Katugampola, K D K Gimna | | | 1340 * | SRI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Tennakoonwela, Pamudie Sasankha | | | 1406 | SRI | 1.00 | 1 | 0.12 | 20 | 2.40 | | | Wijesuriya, G P Y | | | 1384 | SRI | 1.00 | 1 | 0.11 | 20 | 2.20 | | | Senarath, B T A Y | | | 1477 | SRI | 1.00 | 1 | 0.18 | 20 | 3.60 | | | Randil, Lakshitha | | | 1887 | SRI | 0.50 | 1 | 0.20 | 20 | 4.00 | | | Weerawardane, Romesh | m | | 2114 | SRI | 0.00 | 1 | -0.10 | 20 | -2.00 | | | Nirmalarajah, S | | | 1550 | SRI | 0.00 | 1 | -0.75 | 20 | -15.00 | | | * 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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