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Individual Calculations September 2015 |
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| Slack, David R. Total change: 5.80 | |   |
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| 5th Annual Potomac Open | Rockville, Maryland | USA | 2015-07-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2018 | 1866 | 1.50 | 4 | 0.29 | 20 | 5.80 | |
|  Clancy, Daniel J | | | 2107 | USA | 0.00 | 1 | -0.20 | 20 | -4.00 | |  Phillips, Jeff | | | 2047 | USA | 0.50 | 1 | 0.24 | 20 | 4.80 | | | Paul, Justin | | | 1878 | USA | 0.00 | 1 | -0.48 | 20 | -9.60 | | | Reichstein, Boris | f | | 2040 | USA | 1.00 | 1 | 0.73 | 20 | 14.60 | |
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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