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Individual Calculations September 2021 |
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| Bihlmeyer, Joseph E Total change: 2.80 | |   |
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| 4th Annual Peter Henner Memorial - Under 2100 | Albany, New York | USA | 2021-07-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1398 | 1780 | 1.50 | 2 | -0.32 | 40 | -12.80 | |
|  Evans, Serena | | | 1415 | USA | 0.50 | 1 | -0.40 | 40 | -16.00 | |  Qian, Bobby | | | 1380 * | USA | 1.00 | 1 | 0.08 | 40 | 3.20 | | | * 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) | | | | 51st Annual Continental Open - Under 2200 | Sturbridge, Massachusetts | USA | 2021-08-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1751 | 1794 | 1.50 | 2 | 0.39 | 40 | 15.60 | |
| | Wang, Ryan | | | 1623 | USA | 1.00 | 1 | 0.27 | 40 | 10.80 | | | Jin, Derek | | | 1879 | USA | 0.50 | 1 | 0.12 | 40 | 4.80 | |
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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