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Individual Calculations September 2018 |
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| Stephenson, David W Total change: -14.60 | |   |
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| 105th British Championship | Hull | ENG | 2018-07-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2026 | 1817 | 0.00 | 1 | -0.23 | 40 | -9.20 | |
|  Jamroz, Krzysztof | | | 2026 | POL | 0.00 | 1 | -0.23 | 40 | -9.20 | |
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) | | | NOTE: K factor changed | | 105th British Championships Over 50 | Hull | ENG | 2018-07-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1894 | 1817 | 2.50 | 7 | -0.27 | 20 | -5.40 | |
| | Bolt, Graham | | | 2016 | ENG | 0.00 | 1 | -0.24 | 20 | -4.80 | | | Gostelow, David W | | | 1918 | ENG | 0.50 | 1 | 0.14 | 20 | 2.80 | |  Towers, Nigel S | | | 1834 | ENG | 1.00 | 1 | 0.52 | 20 | 10.40 | | | Spanton, Tim R | | | 1927 | ENG | 0.00 | 1 | -0.35 | 20 | -7.00 | | | McMahon, Paul | | | 1911 | ENG | 0.00 | 1 | -0.37 | 20 | -7.40 | | | Clancy, Martin J | | | 1810 | ENG | 0.00 | 1 | -0.51 | 20 | -10.20 | | | Dean, Robert A | | | 1844 | ENG | 1.00 | 1 | 0.54 | 20 | 10.80 | |
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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