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Individual Calculations September 2023 |
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| Henderson, David Total change: -48.20 | |   |
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| 2023 British Championship: Over 50 Championship | Leicester | ENG | 2023-07-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2006 | 2113 | 3.00 | 6 | -0.88 | 20 | -17.60 | |
|  Handley, Michael R | | | 1965 | ENG | 1.00 | 1 | 0.30 | 20 | 6.00 | |  Duncan, Patrick C M | | | 1996 | ENG | 0.50 | 1 | -0.16 | 20 | -3.20 | | | Smith, Andrew Philip | f | | 2038 | IRL | 0.00 | 1 | -0.60 | 20 | -12.00 | | | Thompson, Ian D | f | | 2035 | ENG | 0.50 | 1 | -0.11 | 20 | -2.20 | | | James, Russell A | | | 2012 | ENG | 0.00 | 1 | -0.64 | 20 | -12.80 | | | Brown, Alan M | | | 1988 | ENG | 1.00 | 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) | | | | Northumbria Masters Open | Newcastle upon Tyne | ENG | 2023-08-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2117 | 2113 | 2.50 | 8 | -1.53 | 20 | -30.60 | |
| | Gormally, Daniel W | g | | 2447 | ENG | 0.00 | 1 | -0.12 | 20 | -2.40 | | | Ethelontis, Alexandros N | | | 2015 | ENG | 0.50 | 1 | -0.13 | 20 | -2.60 | | | Archibong, Ubong S | | | 2085 | SCO | 0.00 | 1 | -0.54 | 20 | -10.80 | | | Saunders, Aron | | | 2113 | ENG | 0.50 | 1 | 0.00 | 20 | 0.00 | | | Banerjee, Supratit | | | 2016 | SCO | 0.50 | 1 | -0.13 | 20 | -2.60 | | | Shearsby, Jude | | | 2053 | ENG | 0.00 | 1 | -0.58 | 20 | -11.60 | | | Khoury, Theo | | | 2066 | ENG | 0.50 | 1 | -0.07 | 20 | -1.40 | | | Brewer, Callum D | | | 2144 | ENG | 0.50 | 1 | 0.04 | 20 | 0.80 | |
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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