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Individual Calculations September 2023 |
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| Zhang, Justin Weicheng Total change: 35.60 | |   |
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| 2023 U.S. Junior Open Championship | Elmhurst, IL | USA | 2023-07-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2078 | 1623 | 1.00 | 3 | 0.76 | 40 | 30.40 | |
|  Amburgy, Ryan | f | | 2293 | USA | 0.00 | 1 | -0.01 | 40 | -0.40 | |  Anand, Vignesh | | | 2038 | USA | 1.00 | 1 | 0.93 | 40 | 37.20 | | | Heller, Jack | | | 1903 | USA | 0.00 | 1 | -0.16 | 40 | -6.40 | |
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) | | | | XXXIII Pan-American Youth Chess Festival - Under 16 Open | Chicago, IL | USA | 2023-08-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1649 | 1623 | 4.50 | 9 | 0.13 | 40 | 5.20 | |
| | Montes Orozco, Miguel Angel | c | | 2137 | MEX | 0.50 | 1 | 0.46 | 40 | 18.40 | | | Murali, Rishi | | | 1565 | USA | 0.00 | 1 | -0.58 | 40 | -23.20 | | | Karthikeyan, Arnav | | | 1655 | USA | 0.00 | 1 | -0.46 | 40 | -18.40 | | | Lopez Valladarez, Paul Sebastian | | | 1299 | HON | 1.00 | 1 | 0.13 | 40 | 5.20 | | | Noriega Mejia, Luis Fernando | | | 1223 * | HON | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Chakravarty, Aritro | | | 1967 | USA | 0.50 | 1 | 0.38 | 40 | 15.20 | | | Tay, Brian | | | 1915 | USA | 0.50 | 1 | 0.35 | 40 | 14.00 | | | Jiang, Leo | | | 1520 | USA | 0.50 | 1 | -0.14 | 40 | -5.60 | | | Desai, Ved | | | 1561 | USA | 0.50 | 1 | -0.09 | 40 | -3.60 | | | * 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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