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Individual Calculations July 2018 |
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| Costello, Alexander John Total change: 44.00 | |   |
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| 2018 National Open | Las Vegas, Nevada | USA | 2018-06-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2290 | 2150 | 3.50 | 7 | 1.10 | 40 | 44.00 | |
|  Nyzhnyk, Illia | g | | 2550 * | UKR | 0.00 | 1 | -0.08 | 40 | -3.20 | |  Sloan, Julia Elizabeth | c | | 2173 | USA | 1.00 | 1 | 0.53 | 40 | 21.20 | | | Rohde, Michael | g | | 2375 | USA | 0.50 | 1 | 0.28 | 40 | 11.20 | | | Zhang, Chao | | | 2251 | USA | 1.00 | 1 | 0.64 | 40 | 25.60 | | | Ruck, Robert | g | | 2505 | HUN | 0.00 | 1 | -0.11 | 40 | -4.40 | | | Andersen, Alec | | | 2054 | USA | 0.50 | 1 | -0.13 | 40 | -5.20 | | | Quirke, Jeff | | | 2125 | USA | 0.50 | 1 | -0.03 | 40 | -1.20 | | | * 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) | | |
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