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Individual Calculations September 2023 |
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| Obi, Okwose Marc Total change: -16.20 | |   |
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| East Midlands FIDE Congress 2023 - Under 2400 | Wellingborough | ENG | 2023-08-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1668 | 1795 | 2.00 | 5 | -1.22 | 20 | -24.40 | |
|  Badacsonyi, Stanley | | | 1967 | ENG | 0.00 | 1 | -0.27 | 20 | -5.40 | |  Lishoy Gengis Paratazham, Dildara | | | 1597 | ENG | 0.50 | 1 | -0.26 | 20 | -5.20 | | | Monge, Maurizio | | | 1395 * | ITA | 0.00 | 1 | -0.92 | 20 | -18.40 | | | Bowers, Francis J | | | 1770 | ENG | 0.50 | 1 | -0.03 | 20 | -0.60 | | | Hariharan, Shambavi | | | 1610 | ENG | 1.00 | 1 | 0.26 | 20 | 5.20 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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) | | | | Manchester Summer Chess Congress August 2023 | Bolton | ENG | 2023-08-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1967 | 1795 | 2.50 | 5 | 1.11 | 20 | 22.20 | |
| | Longson, Sarah N | | wf | 2017 | ENG | 1.00 | 1 | 0.78 | 20 | 15.60 | | | Surtees, Mike J | | | 2059 | ENG | 0.00 | 1 | -0.18 | 20 | -3.60 | | | Dietiker, Manuel | | | 1967 | SUI | 0.00 | 1 | -0.27 | 20 | -5.40 | | | Hutchinson, Joel | | | 1875 | ENG | 0.50 | 1 | 0.11 | 20 | 2.20 | | | Newton, Robert A | | | 1918 | ENG | 1.00 | 1 | 0.67 | 20 | 13.40 | |
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 Challengers | Newcastle upon Tyne | ENG | 2023-08-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1825 | 1795 | 2.50 | 7 | -0.70 | 20 | -14.00 | |
| | Sanders, Robert R | | | 1971 | ENG | 1.00 | 1 | 0.73 | 20 | 14.60 | | | Scallan, Fiachra | | | 1925 | IRL | 0.00 | 1 | -0.32 | 20 | -6.40 | | | Egan, David | | | 1912 | ENG | 0.00 | 1 | -0.34 | 20 | -6.80 | | | Pereslavtsev, Alexandr | | | 1607 | ENG | 0.00 | 1 | -0.74 | 20 | -14.80 | | | Porter, Richard | | | 1800 | ENG | 1.00 | 1 | 0.51 | 20 | 10.20 | | | Day, Jonathan A | | | 1806 | ENG | 0.50 | 1 | 0.02 | 20 | 0.40 | | | Clarke, Niall | | | 1751 | ENG | 0.00 | 1 | -0.56 | 20 | -11.20 | |
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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