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Individual Calculations September 2023 |
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| Qin, Kevin Total change: -26.80 | |   |
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| 2023 Houston Chess Festival - Open | Houston, TX | USA | 2023-07-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1948 | 1920 | 2.00 | 4 | -0.01 | 40 | -0.40 | |
|  Chang, Luca | | | 1667 | USA | 1.00 | 1 | 0.19 | 40 | 7.60 | |  Li, Rachael | | wc | 2037 | USA | 0.00 | 1 | -0.34 | 40 | -13.60 | | | Chandran, Harish | | | 1643 | USA | 1.00 | 1 | 0.17 | 40 | 6.80 | | | Ruiz Castillo, Joshua D | g | | 2445 | COL | 0.00 | 1 | -0.03 | 40 | -1.20 | |
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) | | | | Houston Summer Championship 2023 | Houston, TX | USA | 2023-08-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1825 | 1920 | 2.50 | 5 | -0.66 | 40 | -26.40 | |
| | Wilder, Greg | | | 1520 * | USA | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Wang, Andy | | | 1560 | USA | 1.00 | 1 | 0.10 | 40 | 4.00 | | | Ruiz Castillo, Joshua | g | | 2445 | COL | 0.50 | 1 | 0.47 | 40 | 18.80 | | | Revellon, Lucas | | | 1709 | USA | 0.00 | 1 | -0.77 | 40 | -30.80 | | | Wang, Kyle Yiwen | | | 1891 | USA | 0.00 | 1 | -0.54 | 40 | -21.60 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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