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Individual Calculations September 2018 |
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| Gostelow, David W Total change: -31.80 | |   |
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| 105th British Championships Over 50 | Hull | ENG | 2018-07-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1955 | 1918 | 2.50 | 7 | -0.72 | 20 | -14.40 | |
|  Townsend, M Paul | | | 2219 | ENG | 0.00 | 1 | -0.15 | 20 | -3.00 | |  Stephenson, David W | | | 1817 | ENG | 0.50 | 1 | -0.14 | 20 | -2.80 | | | McMahon, Paul | | | 1911 | ENG | 1.00 | 1 | 0.49 | 20 | 9.80 | | | Hodge, Steve R | | | 2005 | ENG | 0.00 | 1 | -0.38 | 20 | -7.60 | | | Clancy, Martin J | | | 1810 | ENG | 1.00 | 1 | 0.35 | 20 | 7.00 | | | Bolt, Graham | | | 2016 | ENG | 0.00 | 1 | -0.37 | 20 | -7.40 | | | Kennedy, Craig | | | 1906 | SCO | 0.00 | 1 | -0.52 | 20 | -10.40 | |
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) | | | | 2018 Midland Open Championship Open | Telford | ENG | 2018-08-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2092 | 1924 | 0.00 | 3 | -0.87 | 20 | -17.40 | |
| | Blackburn, Jonathan L B | | | 2202 | WLS | 0.00 | 1 | -0.17 | 20 | -3.40 | | | Al Khateeb, Taher | c | | 1992 | KUW | 0.00 | 1 | -0.41 | 20 | -8.20 | | | Bin-Suhayl, Ieysaa | | | 2083 | ITA | 0.00 | 1 | -0.29 | 20 | -5.80 | |
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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