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Individual Calculations September 2023 |
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| Koppinger, Matthew Total change: -8.80 | |   |
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| 68th Iowa Open Championship | Des Moines, Iowa | USA | 2023-08-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1611 | 1568 | 2.00 | 5 | -0.22 | 40 | -8.80 | |
|  Nixon, Niko R | | | 1563 | USA | 0.00 | 1 | -0.51 | 40 | -20.40 | |  Walker, Brent P | | | 1618 | USA | 0.50 | 1 | 0.07 | 40 | 2.80 | | | Rana, Oliver | | | 1599 | USA | 0.50 | 1 | 0.04 | 40 | 1.60 | | | Popov, Sergey | | | 1529 | USA | 1.00 | 1 | 0.45 | 40 | 18.00 | | | Baker, Sean Michae | | | 1745 | USA | 0.00 | 1 | -0.27 | 40 | -10.80 | |
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) | | |
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