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Individual Calculations September 2017 |
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| Books, Lawrence James Total change: -14.60 | |   |
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| 7th Annual Potomac Open - U2300 | Rockville, Maryland | USA | 2017-07-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2022 | 1982 | 1.50 | 3 | 0.16 | 20 | 3.20 | |
|  Senft, Sean | | | 2000 | USA | 1.00 | 1 | 0.53 | 20 | 10.60 | | | Treger, Effim | | | 2149 | USA | 0.00 | 1 | -0.28 | 20 | -5.60 | |  Hu, William | | | 1917 | USA | 0.50 | 1 | -0.09 | 20 | -1.80 | |
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) | | | | 49th Annual Atlantic Open | Arlington, Virginia | USA | 2017-08-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1734 | 1982 | 1.50 | 3 | -0.89 | 20 | -17.80 | |
| | Boris, Peter Theodore | | | 1752 | USA | 0.00 | 1 | -0.79 | 20 | -15.80 | | | Dommalapati, Aasa | | wc | 1619 | USA | 1.00 | 1 | 0.10 | 20 | 2.00 | | | Prem, Pranav | | | 1832 | USA | 0.50 | 1 | -0.20 | 20 | -4.00 | |
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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