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Individual Calculations July 2019 |
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| Arkell, Keith C Total change: -6.20 | |   |
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| East Anglian Chess Union Congress Open 2019 | Newmarket | ENG | 2019-05-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2145 | 2470 | 4.50 | 5 | 0.21 | 10 | 2.10 | |
|  De Coverly, Roger D | | | 2070 * | ENG | 1.00 | 1 | 0.08 | 10 | 0.80 | |  Moore, Gerald | | | 2070 * | ENG | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Kett, Tim | | | 2208 | WLS | 0.50 | 1 | -0.32 | 10 | -3.20 | | | Hughes, Roy | | | 2070 * | ENG | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Bradbury, Neil H | m | | 2308 | ENG | 1.00 | 1 | 0.29 | 10 | 2.90 | | | * 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) | | | | 13th Steve Boniface Memorial Congress Open | Bristol | ENG | 2019-06-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2168 | 2467 | 2.50 | 4 | -0.83 | 10 | -8.30 | |
| | Vaughan, Alex | | | 2067 * | ENG | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Krzyzanowski, Patryk | | | 2100 | POL | 1.00 | 1 | 0.10 | 10 | 1.00 | | | Brozel, Sacha | | | 2144 | ENG | 0.50 | 1 | -0.37 | 10 | -3.70 | | | Murphy, Conor E | f | | 2361 | IRL | 0.00 | 1 | -0.64 | 10 | -6.40 | | | * 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) | | |
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