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Individual Calculations September 2017 |
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| Jackson, Oliver A Total change: -20.80 | |   |
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| 104th British Championships Over 65 | Llandudno | ENG | 2017-07-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2067 | 2169 | 5.00 | 7 | 0.56 | 20 | 11.20 | |
|  Stimpson, Philip M | | | 1937 | ENG | 1.00 | 1 | 0.21 | 20 | 4.20 | |  Feavyour, John A | | | 1989 | ENG | 0.50 | 1 | -0.24 | 20 | -4.80 | | | Reuben, Stewart | c | | 2074 | ENG | 1.00 | 1 | 0.37 | 20 | 7.40 | | | Anderton, David W | c | | 2087 | ENG | 1.00 | 1 | 0.39 | 20 | 7.80 | | | Surtees, Mike J | | | 2084 | ENG | 0.50 | 1 | -0.12 | 20 | -2.40 | | | Emerson, Roger | | | 2195 | ENG | 0.50 | 1 | 0.04 | 20 | 0.80 | | | Burnett, Jim | | | 2104 | ENG | 0.50 | 1 | -0.09 | 20 | -1.80 | |
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) | | | | Leyland Chess Congress FIDE Open 2017 | Leyland | ENG | 2017-08-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1998 | 2189 | 2.00 | 5 | -1.60 | 20 | -32.00 | |
| | Bourne, Johnathan D | | | 1937 | ENG | 0.50 | 1 | -0.31 | 20 | -6.20 | | | McPhillips, Joseph | f | | 2400 | ENG | 0.50 | 1 | 0.27 | 20 | 5.40 | | | Han, Yichen | | | 1808 | NED | 0.00 | 1 | -0.91 | 20 | -18.20 | | | Whitehead, Mark A | | | 1908 | ENG | 1.00 | 1 | 0.16 | 20 | 3.20 | | | Lyth, John D | | | 1937 | ENG | 0.00 | 1 | -0.81 | 20 | -16.20 | |
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) | | |
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