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Individual Calculations September 2017 |
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| Davis, Lee Total change: -39.20 | |   |
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| 104th British Championship | Llandudno | ENG | 2017-07-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2009 | 1952 | 2.00 | 9 | -1.81 | 20 | -36.20 | |
|  Merriman, John | | | 2221 | ENG | 0.00 | 1 | -0.17 | 20 | -3.40 | |  Lam, Paul Gm | | | 2111 | ENG | 0.00 | 1 | -0.29 | 20 | -5.80 | | | Taylor, William J | | | 2048 | ENG | 0.00 | 1 | -0.37 | 20 | -7.40 | | | Jayawarna, Nugith | | | 2054 | ENG | 0.00 | 1 | -0.36 | 20 | -7.20 | | | Howell, Oliver W | | | 1701 | ENG | 0.50 | 1 | -0.31 | 20 | -6.20 | | | Haridas, Girinath | | | 1977 | ENG | 0.50 | 1 | 0.03 | 20 | 0.60 | | | Garnett, John S | | | 2005 | ENG | 0.50 | 1 | 0.07 | 20 | 1.40 | | | Golding, James | | | 1942 | ENG | 0.00 | 1 | -0.51 | 20 | -10.20 | | | Hewson, Brian Wr | | | 2023 | 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) | | | | 2017 Midland Championship Open | West Bromwich | ENG | 2017-08-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2028 | 1945 | 2.00 | 5 | -0.07 | 20 | -1.40 | |
| | Sowray, Peter J | f | | 2297 | ENG | 0.00 | 1 | -0.11 | 20 | -2.20 | | | Uddin, Moin | | | 1739 | ENG | 1.00 | 1 | 0.24 | 20 | 4.80 | | | Okhai, Shabir | | | 2111 | ENG | 0.00 | 1 | -0.28 | 20 | -5.60 | | | Wiltshir, Rich | | | 1691 | ENG | 1.00 | 1 | 0.19 | 20 | 3.80 | | | Carleton, John J | | | 2300 | ENG | 0.00 | 1 | -0.11 | 20 | -2.20 | |
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) | | | | Steve Boniface Memorial Congress 2017 | Bristol | ENG | 2017-08-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1932 | 1945 | 2.00 | 4 | -0.08 | 20 | -1.60 | |
| | Stewart, Ashley | | | 2112 | ENG | 0.00 | 1 | -0.28 | 20 | -5.60 | | | Burnett, Leon P | | | 1899 | ENG | 0.00 | 1 | -0.56 | 20 | -11.20 | | | Smith, Lynda | | wc | 1870 | WLS | 1.00 | 1 | 0.40 | 20 | 8.00 | | | Bramson, Mike | | | 1846 | ENG | 1.00 | 1 | 0.36 | 20 | 7.20 | |
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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