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Individual Calculations September 2021 |
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| Wang, Jacob S Total change: -25.20 | |   |
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| 26th Annual Pacific Coast Open - Under 2100 | Van Nuys, California | USA | 2021-07-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1441 | 1504 | 0.50 | 2 | -0.64 | 40 | -25.60 | |
|  Nanugonda, Vishva | | | 1245 | USA | 0.00 | 1 | -0.82 | 40 | -32.80 | |  Vasquez, Marcus | | | 1637 | USA | 0.50 | 1 | 0.18 | 40 | 7.20 | |
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) | | | | 2021 North American Youth Chess Championships - Open Under 8 | Chicago, Illinois | USA | 2021-08-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1465 | 1462 | 1.00 | 2 | 0.01 | 40 | 0.40 | |
| | Cortes, Fernando | | | 1287 | MEX | 1.00 | 1 | 0.27 | 40 | 10.80 | | | Guo, Ethan | | | 1643 | USA | 0.00 | 1 | -0.26 | 40 | -10.40 | |
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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