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Individual Calculations September 2019 |
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| Nunn, Petra Total change: 2.20 | |   |
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| 106th British Championships Over 50 | Torquay | ENG | 2019-07-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2013 | 1998 | 3.50 | 7 | 0.11 | 20 | 2.20 | |
|  Chapman, Terry Pd | f | | 2246 | ENG | 0.50 | 1 | 0.31 | 20 | 6.20 | |  Granat, Russell G | | | 2219 | ENG | 0.00 | 1 | -0.22 | 20 | -4.40 | | | Rowan, Paul | | | 1873 | ENG | 1.00 | 1 | 0.33 | 20 | 6.60 | | | Willmoth, Robert F | c | | 2138 | ENG | 0.00 | 1 | -0.31 | 20 | -6.20 | | | McMahon, Paul | | | 1931 | ENG | 0.50 | 1 | -0.09 | 20 | -1.80 | | | Fallowfield, Nicholas | | | 1872 | ENG | 1.00 | 1 | 0.33 | 20 | 6.60 | | | Gibbs, Daniel C | | | 1812 | ENG | 0.50 | 1 | -0.24 | 20 | -4.80 | |
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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