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Individual Calculations September 2017 |
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| Collins, Peter M Total change: -52.60 | |   |
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| 104th British Championships Over 65 | Llandudno | ENG | 2017-07-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1832 | 1954 | 3.00 | 7 | -1.60 | 20 | -32.00 | |
|  Emerson, Roger | | | 2195 | ENG | 0.00 | 1 | -0.20 | 20 | -4.00 | |  Ribbands, Patrick C | | | 1755 | ENG | 0.50 | 1 | -0.26 | 20 | -5.20 | | | Tidmarsh, David A | | | 1821 | ENG | 0.50 | 1 | -0.18 | 20 | -3.60 | | | Cresswell, Mike J | | | 1698 | ENG | 0.50 | 1 | -0.31 | 20 | -6.20 | | | Goodwin, Ed H | | | 1856 | ENG | 0.50 | 1 | -0.13 | 20 | -2.60 | | | Fisher, C Phillip | | | 1729 | ENG | 0.50 | 1 | -0.28 | 20 | -5.60 | | | Homolka, Vincent O | | | 1773 | 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) | | | | 104th British Championships Morning Open | Llandudno | ENG | 2017-07-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1797 | 1954 | 2.50 | 5 | -1.03 | 20 | -20.60 | |
| | Clanchy, Nicholas | | | 1770 | ENG | 0.00 | 1 | -0.74 | 20 | -14.80 | | | Graff, Ben | | | 1824 | ENG | 0.50 | 1 | -0.18 | 20 | -3.60 | | | Stern, Robert C | | | 1806 | ENG | 0.50 | 1 | -0.20 | 20 | -4.00 | | | Connolly Sams, Lukah | | | 1729 | SCO | 1.00 | 1 | 0.22 | 20 | 4.40 | | | Hodge, Steve R | | | 1858 | ENG | 0.50 | 1 | -0.13 | 20 | -2.60 | |
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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