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Individual Calculations January 2019 |
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| Nethsara, W M Daham Total change: -52.80 | |   |
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| Sri Lanka Inter Club B Chess Championship 2018 | Colombo | SRI | 2018-12-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1624 | 1496 | 0.50 | 3 | -0.54 | 40 | -21.60 | |
|  De Silva, D M Nilanga | | | 1661 | SRI | 0.50 | 1 | 0.22 | 40 | 8.80 | |  Ariyawansa, K A P M | | | 1795 | SRI | 0.00 | 1 | -0.15 | 40 | -6.00 | | | Kanumale, K P | | | 1416 | SRI | 0.00 | 1 | -0.61 | 40 | -24.40 | |
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) | | | | Kolonnawa Chess Classic 2018 | Colombo | SRI | 2018-12-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1220 | 1496 | 5.00 | 7 | -0.78 | 40 | -31.20 | |
| | Nawanjana, R A Thaweesha | | | 1096 * | SRI | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Sethiya , A Vinuga | | | 1147 | SRI | 0.50 | 1 | -0.39 | 40 | -15.60 | | | Bandara, K G J C | | | 1209 | SRI | 1.00 | 1 | 0.16 | 40 | 6.40 | | | Perera, S D Lahiru | | | 1274 | SRI | 0.50 | 1 | -0.28 | 40 | -11.20 | | | Senevirathne, A M L M | | | 1274 | SRI | 0.50 | 1 | -0.28 | 40 | -11.20 | | | Welangalla, Nenitha | | | 1245 | SRI | 1.00 | 1 | 0.19 | 40 | 7.60 | | | Alwis, B H A Rasidu | | | 1294 | SRI | 0.50 | 1 | -0.26 | 40 | -10.40 | | | * 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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