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Individual Calculations December 2019 |
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| Duda, Lucas Total change: 21.60 | |   |
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| Central London Chess Congress (Open Section) 2019 | London | ENG | 2019-11-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2035 | 1852 | 2.00 | 4 | 0.93 | 20 | 18.60 | |
|  Seymour, Timothy P | | | 2107 | ENG | 0.00 | 1 | -0.19 | 20 | -3.80 | |  Wilks, Simon | | | 2071 | ENG | 0.00 | 1 | -0.22 | 20 | -4.40 | | | Martelli, Tommaso | | | 1924 | ITA | 1.00 | 1 | 0.60 | 20 | 12.00 | | | Chakanyuka, Charles | | | 2036 | ZIM | 1.00 | 1 | 0.74 | 20 | 14.80 | |
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) | | | | 77th Hampstead FIDE Chess Congress U2200 | London | ENG | 2019-11-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1753 | 1852 | 2.00 | 3 | 0.15 | 20 | 3.00 | |
| | Llewellyn, Julian D | | | 1576 | ENG | 1.00 | 1 | 0.17 | 20 | 3.40 | | | Tavoularis, Nicholas | | | 2083 | GRE | 0.00 | 1 | -0.21 | 20 | -4.20 | | | Ball, Matthew P | | | 1599 | ENG | 1.00 | 1 | 0.19 | 20 | 3.80 | |
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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