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Individual Calculations August 2023 |
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| Zheng, Richard Total change: -33.60 | |   |
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| 51st annual World Open - Open | Philadelphia, PA | USA | 2023-06-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1982 | 2192 | 4.50 | 7 | -0.84 | 40 | -33.60 | |
|  Zhang, Roger | | | 1971 | USA | 0.00 | 1 | -0.78 | 40 | -31.20 | |  Buchanan, Royal | | | 1867 | USA | 0.50 | 1 | -0.37 | 40 | -14.80 | | | Dai, Xuli | | | 1914 | USA | 1.00 | 1 | 0.17 | 40 | 6.80 | | | Ramirez, Robert Yorisan | | | 2015 | USA | 0.50 | 1 | -0.23 | 40 | -9.20 | | | Wray, Laverne | | | 2002 | USA | 1.00 | 1 | 0.25 | 40 | 10.00 | | | Yoo, Eugene Choi | | | 2066 | USA | 0.50 | 1 | -0.17 | 40 | -6.80 | | | Anand, Vignesh | | | 2038 | USA | 1.00 | 1 | 0.29 | 40 | 11.60 | |
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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