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Individual Calculations July 2023 |
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| Zheng, Lerui Total change: -18.80 | |   |
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| 32nd annual Chicago Open - U2300 Section | Wheeling, IL | USA | 2023-05-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1873 | 1585 | 0.50 | 4 | -0.16 | 40 | -6.40 | |
|  Harrison, Joshua Alan | | | 1964 | USA | 0.00 | 1 | -0.09 | 40 | -3.60 | | | Yang, Daniel | | | 1798 | USA | 0.50 | 1 | 0.27 | 40 | 10.80 | |  Szpisjak, Steven J | | | 1920 | USA | 0.00 | 1 | -0.12 | 40 | -4.80 | | | Yang, Maxwell Z | | | 1809 | USA | 0.00 | 1 | -0.22 | 40 | -8.80 | |
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) | | | | 16th annual Continental Chess Cleveland Open - U2100 | Middleburg Heights, OH | USA | 2023-06-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1751 | 1606 | 0.00 | 1 | -0.31 | 40 | -12.40 | |
| | Demetruk, David E | | | 1751 | USA | 0.00 | 1 | -0.31 | 40 | -12.40 | |
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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