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Individual Calculations September 2018 |
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| Heesters, Pieter Total change: 33.20 | |   |
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| 2018 Barber Tournament of K-8 Champions | Middleton, Wisconsin | USA | 2018-07-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1990 | 1946 | 2.00 | 5 | -0.26 | 40 | -10.40 | |
|  McConnell, Sullivan | | | 1716 | USA | 1.00 | 1 | 0.21 | 40 | 8.40 | |  He, Anthony Bi | f | | 2245 | USA | 0.50 | 1 | 0.35 | 40 | 14.00 | | | Tsay, Vincent | f | | 2198 | USA | 0.00 | 1 | -0.19 | 40 | -7.60 | | | Narkeeran, Madhavan | | | 1993 | USA | 0.50 | 1 | 0.07 | 40 | 2.80 | | | Zheng, Michael | | | 1796 | USA | 0.00 | 1 | -0.70 | 40 | -28.00 | |
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) | | | | 50th Annual Atlantic Open | Falls Church, Virginia | USA | 2018-08-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1985 | 1951 | 3.00 | 4 | 1.09 | 40 | 43.60 | |
| | Luo, Terry | | | 1793 | USA | 1.00 | 1 | 0.29 | 40 | 11.60 | | | Wilson, Ronen | | | 1731 | USA | 1.00 | 1 | 0.22 | 40 | 8.80 | | | Erenburg, Sergey | g | | 2351 * | USA | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Bouzoukis, Charles | | | 2065 | USA | 1.00 | 1 | 0.66 | 40 | 26.40 | | | * 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) | | |
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