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Individual Calculations September 2023 |
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| Ruiz Castillo, Joshua D Total change: -11.30 | |   |
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| 2023 Houston Chess Festival - Open | Houston, TX | USA | 2023-07-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1915 | 2445 | 3.00 | 4 | -0.85 | 10 | -8.50 | |
|  Negron, Xavier Enrique | | | 2045 * | SGP | 0.50 | 1 | -0.42 | 10 | -4.20 | | | Fan, William G | | | 1790 | USA | 1.00 | 1 | 0.01 | 10 | 0.10 | |  Hendrick, John | | | 1905 | USA | 0.50 | 1 | -0.47 | 10 | -4.70 | | | Qin, Kevin | | | 1920 | CAN | 1.00 | 1 | 0.03 | 10 | 0.30 | | | * 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) | | | | Houston Summer Championship 2023 | Houston, TX | USA | 2023-08-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1944 | 2445 | 4.50 | 5 | -0.28 | 10 | -2.80 | |
| | Zhang, Sunny | | | 2045 * | USA | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Wang, Kyle Yiwen | | | 1891 | USA | 1.00 | 1 | 0.03 | 10 | 0.30 | | | Qin, Kevin | | | 1920 | CAN | 0.50 | 1 | -0.47 | 10 | -4.70 | | | Yang, Daniel | | | 1886 | USA | 1.00 | 1 | 0.03 | 10 | 0.30 | | | Li, Rachael | | wc | 1980 | USA | 1.00 | 1 | 0.05 | 10 | 0.50 | | | * 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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