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Individual Calculations August 2021 |
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| Winters, Lance A Total change: -25.40 | |   |
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| 49th Annual World Open - Under 2000 | Philadelphia, Pennsylvania | USA | 2021-07-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1645 | 1885 | 3.00 | 6 | -1.60 | 20 | -32.00 | |
|  Li, Justin Y | | | 1485 * | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Antler, Arthur S | | | 1928 | USA | 1.00 | 1 | 0.56 | 20 | 11.20 | | | Xu, Noah L | | | 1559 | USA | 0.50 | 1 | -0.37 | 20 | -7.40 | | | Hu, Alexander C | | | 1808 | USA | 0.00 | 1 | -0.61 | 20 | -12.20 | | | Zhang, Andrew H | | | 1606 | USA | 0.50 | 1 | -0.34 | 20 | -6.80 | | | Tang, Vincent | | | 1485 * | USA | 0.00 | 1 | -0.92 | 20 | -18.40 | | | * 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) | | | | 22nd Annual Pittsburgh Open - Under 2100 | Pittsburgh, Pennsylvania | USA | 2021-07-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1760 | 1885 | 1.00 | 1 | 0.33 | 20 | 6.60 | |
| | Steed, Adam C | | | 1760 | USA | 1.00 | 1 | 0.33 | 20 | 6.60 | |
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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