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Individual Calculations August 2021 |
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| George, Isaac Total change: 249.60 | |   |
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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 |
| 1627 | 1561 | 4.00 | 5 | 1.93 | 40 | 77.20 | |
|  Juric, Zvonko | | | 1711 | USA | 0.50 | 1 | 0.20 | 40 | 8.00 | |  Bagchi, Sounak | | | 1677 | USA | 0.50 | 1 | 0.16 | 40 | 6.40 | | | Xu, Raymond | | | 1509 | USA | 1.00 | 1 | 0.43 | 40 | 17.20 | | | Liotino, Peter John | | | 1464 | USA | 1.00 | 1 | 0.37 | 40 | 14.80 | | | Cohen Solal, Leo | | | 1774 | FRA | 1.00 | 1 | 0.77 | 40 | 30.80 | |
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) | | | | 14th Annual Chicago Class - Expert | Wheeling, Illinois | USA | 2021-07-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1861 | 1561 | 3.50 | 5 | 2.73 | 40 | 109.20 | |
| | Bruha, Nicholas | | | 1842 | USA | 1.00 | 1 | 0.84 | 40 | 33.60 | | | Brock, William H | | | 1935 | USA | 0.00 | 1 | -0.10 | 40 | -4.00 | | | Starkman, Eric | | | 1791 | USA | 1.00 | 1 | 0.79 | 40 | 31.60 | | | Turner, Bill | | | 1954 | USA | 1.00 | 1 | 0.92 | 40 | 36.80 | | | Garrett, Daniel Zachary | | | 1782 | USA | 0.50 | 1 | 0.28 | 40 | 11.20 | |
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 US Class Championships - Expert | Houston, Texas | USA | 2021-07-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1871 | 1561 | 2.00 | 3 | 1.58 | 40 | 63.20 | |
| | Haskin, Zachary | | | 1920 | USA | 0.00 | 1 | -0.10 | 40 | -4.00 | | | Palang, Warren Jesse | | | 1878 | USA | 1.00 | 1 | 0.87 | 40 | 34.80 | | | Bunch, Cliff | | | 1814 | USA | 1.00 | 1 | 0.81 | 40 | 32.40 | |
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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