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Individual Calculations July 2023 |
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| Harrison, Joshua Total change: -3.60 | |   |
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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 |
| 1740 | 1964 | 3.50 | 5 | -0.29 | 20 | -5.80 | |
|  Zheng, Lerui | | | 1585 | USA | 1.00 | 1 | 0.09 | 20 | 1.80 | |  Shangin, Lev | | | 1564 * | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Kozower, Ethan | | | 1859 | USA | 0.00 | 1 | -0.64 | 20 | -12.80 | | | Min, Ryan | | | 1917 | USA | 0.50 | 1 | -0.07 | 20 | -1.40 | | | Potharaju, Srikar | | | 1775 | USA | 1.00 | 1 | 0.25 | 20 | 5.00 | | | * 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) | | | | 2023 National Open - Under 2300 | Las Vegas, NV | USA | 2023-06-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1825 | 1964 | 3.50 | 5 | 0.11 | 20 | 2.20 | |
| | Song, Scott | | | 1714 | USA | 1.00 | 1 | 0.19 | 20 | 3.80 | | | Wong, Andrew Yun | | | 1867 | USA | 1.00 | 1 | 0.37 | 20 | 7.40 | | | Liu, Austin | | | 1913 | USA | 0.00 | 1 | -0.57 | 20 | -11.40 | | | Min, Ryan | | | 1917 | USA | 0.50 | 1 | -0.07 | 20 | -1.40 | | | Bist, Atharva | | | 1716 | USA | 1.00 | 1 | 0.19 | 20 | 3.80 | |
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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