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Individual Calculations June 2018 |
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| Cohen, Lawrence S Total change: -3.20 | |   |
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| 2018 Illinois Senior State Championship | Schaumburg, Illinois | USA | 2018-05-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1733 | 1846 | 1.50 | 3 | -0.42 | 20 | -8.40 | |
|  Henderson Jr, | | | 1563 | USA | 0.00 | 1 | -0.84 | 20 | -16.80 | |  Baumgartner, Christopher | | | 1810 | USA | 0.50 | 1 | -0.05 | 20 | -1.00 | | | Jaconette, Rick | | | 1826 | USA | 1.00 | 1 | 0.47 | 20 | 9.40 | |
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) | | | | 6th Cherry Blossom Classic - U2200 | Dulles, Virginia | USA | 2018-05-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1801 | 1846 | 2.50 | 4 | 0.26 | 20 | 5.20 | |
| | Lalwani, Jay | | | 1781 | USA | 0.50 | 1 | -0.09 | 20 | -1.80 | | | Long, David F | | | 1742 | USA | 1.00 | 1 | 0.36 | 20 | 7.20 | | | Xing, Ashley | | | 1785 | USA | 0.00 | 1 | -0.58 | 20 | -11.60 | | | Miller, Stephen M | | | 1896 | USA | 1.00 | 1 | 0.57 | 20 | 11.40 | |
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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