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Individual Calculations September 2021 |
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| Wilson, Ronen Total change: 8.00 | |   |
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| 2021 North American Youth Chess Championships - Open Under 14 | Chicago, Illinois | USA | 2021-08-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1832 | 1893 | 4.50 | 8 | -0.11 | 40 | -4.40 | |
|  Rajanish, Abhinav | | | 1619 | USA | 1.00 | 1 | 0.17 | 40 | 6.80 | |  Pillai, Adithya | | | 1671 | USA | 1.00 | 1 | 0.22 | 40 | 8.80 | | | Reiss, Aiden | | | 1655 | USA | 0.00 | 1 | -0.80 | 40 | -32.00 | | | Su, Ethan | | | 1794 | CAN | 1.00 | 1 | 0.36 | 40 | 14.40 | | | Cavanah, Troy | | | 2006 | USA | 0.50 | 1 | 0.15 | 40 | 6.00 | | | Vanapalli, Vishnu | | | 1958 | USA | 0.50 | 1 | 0.09 | 40 | 3.60 | | | Levine, Joseph | | | 2123 | USA | 0.50 | 1 | 0.29 | 40 | 11.60 | | | Shivakumar, Shawnak | | | 1828 | USA | 0.00 | 1 | -0.59 | 40 | -23.60 | |
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) | | | | 53rd Annual Atlantic Open - Major | Reston, Virginia | USA | 2021-08-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2130 | 1893 | 1.00 | 3 | 0.31 | 40 | 12.40 | |
| | Williams, Justus | f | | 2293 * | USA | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Taylor, Stewart Bradley | | | 1959 | USA | 1.00 | 1 | 0.59 | 40 | 23.60 | | | Samuelson, Andrew | f | | 2137 | USA | 0.00 | 1 | -0.20 | 40 | -8.00 | | | * 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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