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Individual Calculations January 2020 |
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| Bonn, Thomas B Total change: 4.00 | |   |
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| 11th CSC London Chess Classic: Weekend Open | London | ENG | 2019-11-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2240 | 2199 | 3.50 | 5 | 1.35 | 20 | 27.00 | |
|  Cohen, Lawrence S | | | 1824 | USA | 1.00 | 1 | 0.09 | 20 | 1.80 | |  Kvetny, Mark | m | | 2420 | GER | 1.00 | 1 | 0.78 | 20 | 15.60 | | | Petrov, Vladimir Sergeev | m | | 2355 | BUL | 0.50 | 1 | 0.21 | 20 | 4.20 | | | Zakarian, David | f | | 2343 | ARM | 0.50 | 1 | 0.19 | 20 | 3.80 | | | Chapman, Terry Pd | f | | 2258 | ENG | 0.50 | 1 | 0.08 | 20 | 1.60 | |
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) | | | | 12th Northwick Park Five Round Congress Open 2019 | London | ENG | 2019-12-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1976 | 2199 | 3.00 | 4 | -0.11 | 20 | -2.20 | |
| | Spanton, Tim R | | | 1951 | ENG | 1.00 | 1 | 0.19 | 20 | 3.80 | | | Rogers, Tim L | | | 1969 | ENG | 1.00 | 1 | 0.21 | 20 | 4.20 | | | Xian, Junhao | | | 2070 | CHN | 0.00 | 1 | -0.67 | 20 | -13.40 | | | Nayak, Raghav | | | 1914 | ENG | 1.00 | 1 | 0.16 | 20 | 3.20 | |
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) | | | | CCF Christmas Congress 2019 Open | London | ENG | 2019-12-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1926 | 2199 | 3.00 | 5 | -1.04 | 20 | -20.80 | |
| | Akeya-Price, Robert A | | | 1880 | ENG | 0.50 | 1 | -0.37 | 20 | -7.40 | | | Balaji, Aaravamudhan | | | 2050 | ENG | 0.50 | 1 | -0.20 | 20 | -4.00 | | | Tavoularis, Nicholas | | | 2101 | GRE | 0.00 | 1 | -0.63 | 20 | -12.60 | | | Vaidya, Raghav | | | 1799 * | ENG | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Ignatovic, Ernest | | | 1799 * | LTU | 1.00 | 1 | 0.08 | 20 | 1.60 | | | * 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) | | |
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