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Individual Calculations September 2021 |
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| Amburgy, Ryan Total change: 35.20 | |   |
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| 37th Annual GM Arnold Denker National Tournament of High School State Champions | Cherry Hill, New Jersey | USA | 2021-07-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2172 | 2012 | 2.50 | 5 | 0.93 | 40 | 37.20 | |
|  Snow, Zachary Isaac | | | 1820 | USA | 0.50 | 1 | -0.25 | 40 | -10.00 | |  Tahmassebi, Bijan | | | 2105 | USA | 1.00 | 1 | 0.63 | 40 | 25.20 | | | Shlyakhtenko, Robert | f | | 2370 | USA | 1.00 | 1 | 0.90 | 40 | 36.00 | | | Peng, Shunkai | f | | 2316 | USA | 0.00 | 1 | -0.14 | 40 | -5.60 | | | Chen, Justin | f | | 2247 | USA | 0.00 | 1 | -0.21 | 40 | -8.40 | |
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) | | | | 2021 DFW FIDE Premier 6 - Premier | Dallas, Texas | USA | 2021-08-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1922 | 2030 | 2.50 | 4 | -0.05 | 40 | -2.00 | |
| | Welsh, Vinh | | | 1630 * | USA | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Winchell, Barrett | | | 1846 | USA | 1.00 | 1 | 0.26 | 40 | 10.40 | | | Javakhadze, Zurabi | m | | 2430 * | GEO | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Zhang, Eric J | | | 1782 | USA | 0.50 | 1 | -0.31 | 40 | -12.40 | | | * 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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