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Individual Calculations December 2021 |
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| Collinson, Mark I Total change: -66.80 | |   |
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| 2021 Scarborough Chess Congress | Scarborough | ENG | 2021-10-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1752 | 1983 | 2.00 | 5 | -1.89 | 40 | -75.60 | |
|  Gajdosz, Marek | | | 1750 | POL | 0.00 | 1 | -0.79 | 40 | -31.60 | |  Best, Francis P | | | 1583 * | ENG | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Garnett, John S | | | 1822 | ENG | 0.00 | 1 | -0.71 | 40 | -28.40 | | | Zakarian, Dimitrios Levon | | | 1735 | ENG | 1.00 | 1 | 0.19 | 40 | 7.60 | | | Skettos, Nicolas | | | 1869 | CYP | 0.00 | 1 | -0.66 | 40 | -26.40 | | | * 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) | | | | 2021/22 4NCL Division 3 North Rounds 1-2 | Doncaster | ENG | 2021-11-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1832 | 1937 | 1.50 | 2 | 0.22 | 40 | 8.80 | |
| | Leah, Tom | | | 1916 | ENG | 0.50 | 1 | -0.03 | 40 | -1.20 | | | Doherty, Paul | | | 1748 | ENG | 1.00 | 1 | 0.25 | 40 | 10.00 | |
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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