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Individual Calculations August 2015 |
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| Cummings, David H. Total change: -15.70 | |   |
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| 43rd Annual World Open | Arlington, Virginia | USA | 2015-07-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2143 | 2327 | 5.00 | 9 | -1.57 | 10 | -15.70 | |
|  Yu, Jennifer R | | wf | 2072 | USA | 0.00 | 1 | -0.81 | 10 | -8.10 | |  Iwu, Okechukwu N | | | 2120 | USA | 0.00 | 1 | -0.77 | 10 | -7.70 | | | Slomski, Matt | | | 2079 | USA | 1.00 | 1 | 0.19 | 10 | 1.90 | | | Chow, Colin | | | 2140 | USA | 0.50 | 1 | -0.24 | 10 | -2.40 | | | Guo, Arthur | c | | 1949 | USA | 1.00 | 1 | 0.09 | 10 | 0.90 | | | Fikiet, Alex M | | | 2209 | USA | 1.00 | 1 | 0.34 | 10 | 3.40 | | | Adamson, Robby | f | | 2246 | USA | 0.50 | 1 | -0.11 | 10 | -1.10 | | | Nikhilesh, Kumar K. | f | | 2235 | IND | 0.50 | 1 | -0.13 | 10 | -1.30 | | | Ludwig, John G | | | 2235 | USA | 0.50 | 1 | -0.13 | 10 | -1.30 | |
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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