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Individual Calculations July 2021 |
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| Brown, James Elmer Total change: -17.60 | |   |
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| 2021 National Open - Under 2100 | Las Vegas, Nevada | USA | 2021-06-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1938 | 1924 | 1.00 | 3 | -0.44 | 40 | -17.60 | |
|  Erick, Kevin Lynn | | | 1989 | USA | 0.50 | 1 | 0.09 | 40 | 3.60 | | | Reyes, Virgilio T | | | 1872 | USA | 0.50 | 1 | -0.07 | 40 | -2.80 | |  Merwin, Steven E | | | 1952 | USA | 0.00 | 1 | -0.46 | 40 | -18.40 | |
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) | | |
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