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Individual Calculations September 2018 |
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| Willow, Jonah B Total change: -31.80 | |   |
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| 105th British Championships Major Open | Hull | ENG | 2018-07-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2012 | 2265 | 6.50 | 9 | -0.73 | 40 | -29.20 | |
|  Nayak, Raghav | | | 1901 | ENG | 1.00 | 1 | 0.10 | 40 | 4.00 | |  Jaufarally, Nadia | | | 1988 | ENG | 1.00 | 1 | 0.17 | 40 | 6.80 | | | Smith, Andrew Philip | f | | 2102 | IRL | 0.00 | 1 | -0.72 | 40 | -28.80 | | | Garnett, John S | | | 1916 | ENG | 1.00 | 1 | 0.11 | 40 | 4.40 | | | Brewer, Callum D | | | 2064 | ENG | 1.00 | 1 | 0.24 | 40 | 9.60 | | | Royal, Shreyas | c | | 1927 | ENG | 0.50 | 1 | -0.38 | 40 | -15.20 | | | Modi, Shyam Jagdish | | | 1973 | ENG | 1.00 | 1 | 0.15 | 40 | 6.00 | | | Ogunshola, Ben | | | 2143 | NGR | 0.00 | 1 | -0.67 | 40 | -26.80 | | | Shaw, Peter | | | 2093 | ENG | 1.00 | 1 | 0.27 | 40 | 10.80 | |
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) | | | NOTE: K factor changed | | 2018 Midland Open Championship Open | Telford | ENG | 2018-08-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2023 | 2303 | 4.00 | 5 | -0.13 | 20 | -2.60 | |
| | Jamieson, Ian | | | 1942 | SCO | 1.00 | 1 | 0.10 | 20 | 2.00 | | | Taylor, Robert K | | | 1982 | ENG | 0.50 | 1 | -0.37 | 20 | -7.40 | | | Han, Yichen | | | 1952 | NED | 0.50 | 1 | -0.39 | 20 | -7.80 | | | Okhai, Shabir | | | 2080 | ENG | 1.00 | 1 | 0.22 | 20 | 4.40 | | | James, Russell A | | | 2159 | ENG | 1.00 | 1 | 0.31 | 20 | 6.20 | |
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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