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Individual Calculations September 2017 |
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| Gunn, Michael J Total change: 35.80 | |   |
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| 104th British Championships Weekend Under 1825 | Llandudno | ENG | 2017-07-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1693 | 1563 | 1.50 | 3 | 0.52 | 20 | 10.40 | |
|  Pride, Stephen C | | | 1656 | ENG | 1.00 | 1 | 0.63 | 20 | 12.60 | |  Jukes, Sam | | | 1730 | WLS | 0.50 | 1 | 0.22 | 20 | 4.40 | | | Aitchison, A Keith | | | 1692 | SCO | 0.00 | 1 | -0.33 | 20 | -6.60 | |
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) | | | | 104th British Championships Under 1900 | Llandudno | ENG | 2017-07-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1748 | 1563 | 1.50 | 3 | 0.72 | 20 | 14.40 | |
| | Ribbands, Patrick C | | | 1755 | ENG | 0.50 | 1 | 0.25 | 20 | 5.00 | | | Murrell, Mark Ra | | | 1791 | ENG | 0.50 | 1 | 0.29 | 20 | 5.80 | | | Cresswell, Mike J | | | 1698 | ENG | 0.50 | 1 | 0.18 | 20 | 3.60 | |
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) | | | | 104th British Championships Under 1750 | Llandudno | ENG | 2017-07-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1699 | 1563 | 1.50 | 3 | 0.55 | 20 | 11.00 | |
| | Norman, Dinah M | | wc | 1727 | ENG | 0.50 | 1 | 0.22 | 20 | 4.40 | | | Clegg, Robert | | | 1734 | ENG | 0.50 | 1 | 0.23 | 20 | 4.60 | | | Newton, Colin M | | | 1635 | ENG | 0.50 | 1 | 0.10 | 20 | 2.00 | |
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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