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Individual Calculations April 2023 |
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| Sun, Sophia Total change: 42.80 | |   |
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| 2023 Cedar Rapids Leather Jackets - Open | Cedar Rapids, IA | USA | 2023-03-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1945 | 1394 | 0.00 | 2 | -0.05 | 40 | -2.00 | |
|  Lang, Jonathan J | | | 1925 | USA | 0.00 | 1 | -0.03 | 40 | -1.20 | | | Reynolds, Robert | | | 1964 | USA | 0.00 | 1 | -0.02 | 40 | -0.80 | |
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) | | | | 27th annual Mid-America Open - U2100 | St. Louis, Missouri | USA | 2023-03-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1660 | 1394 | 1.50 | 2 | 1.12 | 40 | 44.80 | |
| | Saraie, Eskandar | | | 1749 | USA | 1.00 | 1 | 0.89 | 40 | 35.60 | |  Nixon, Niko Richard Curtis | | | 1571 | USA | 0.50 | 1 | 0.23 | 40 | 9.20 | |
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) | | |
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