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Individual Calculations September 2017 |
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| Myall, Ivan J Total change: -46.40 | |   |
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| 104th British Championships Over 65 | Llandudno | ENG | 2017-07-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1918 | 2046 | 3.00 | 7 | -1.69 | 20 | -33.80 | |
|  Lightfoot, Malcolm J | | | 1873 | ENG | 0.00 | 1 | -0.73 | 20 | -14.60 | |  Cooper, John G | | | 1928 | ENG | 1.00 | 1 | 0.34 | 20 | 6.80 | | | McKerracher, Douglas | | | 1930 | SCO | 1.00 | 1 | 0.34 | 20 | 6.80 | | | Valentine, Brian J | | | 1933 | ENG | 0.50 | 1 | -0.15 | 20 | -3.00 | | | Pickersgill, Adrian O | | | 1972 | ENG | 0.00 | 1 | -0.60 | 20 | -12.00 | | | Kendall, Paul Sn | | | 1959 | ENG | 0.00 | 1 | -0.62 | 20 | -12.40 | | | Moore, Gillian A | | | 1833 | ENG | 0.50 | 1 | -0.27 | 20 | -5.40 | |
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) | | | | 104th British Championships Morning Open | Llandudno | ENG | 2017-07-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1870 | 2046 | 3.00 | 5 | -0.63 | 20 | -12.60 | |
| | Foster, Timothy | | | 1865 | ENG | 1.00 | 1 | 0.26 | 20 | 5.20 | | | Clanchy, Nicholas | | | 1770 | ENG | 0.00 | 1 | -0.83 | 20 | -16.60 | | | Faldon, David J | | | 1911 | ENG | 0.50 | 1 | -0.18 | 20 | -3.60 | | | Ashworth, Michael J | | | 1946 | ENG | 0.50 | 1 | -0.14 | 20 | -2.80 | | | Openshaw, David K | | | 1859 | ENG | 1.00 | 1 | 0.26 | 20 | 5.20 | |
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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