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Individual Calculations September 2018 |
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| Marcelino, William Total change: -3.00 | |   |
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| 2018 National Senior Tournament of Champions | Middleton, Wisconsin | USA | 2018-07-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2116 | 2087 | 2.50 | 5 | 0.18 | 40 | 7.20 | |
|  Bereolos, Peter | f | | 2146 | USA | 0.50 | 1 | 0.08 | 40 | 3.20 | |  Davis, Tony | | | 2230 | USA | 0.00 | 1 | -0.31 | 40 | -12.40 | | | Carey, Michael | | | 1849 | USA | 1.00 | 1 | 0.20 | 40 | 8.00 | | | Pohl, Klaus | | | 2007 | USA | 1.00 | 1 | 0.39 | 40 | 15.60 | | | Rohde, Michael | g | | 2349 | USA | 0.00 | 1 | -0.18 | 40 | -7.20 | |
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) | | | NOTE: K factor changed | | 50th Annual Atlantic Open | Falls Church, Virginia | USA | 2018-08-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2019 | 2087 | 2.50 | 5 | -0.51 | 20 | -10.20 | |
| | Postny, Evgeny | g | | 2487 * | ISR | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Liang, Jason | | | 2046 | USA | 0.00 | 1 | -0.56 | 20 | -11.20 | | | Hamilton, Timothy | | | 1911 | USA | 1.00 | 1 | 0.27 | 20 | 5.40 | | | Davis, Geoffrey | | | 1846 | USA | 1.00 | 1 | 0.20 | 20 | 4.00 | | | Luo, Ryan | | | 1805 | USA | 0.50 | 1 | -0.34 | 20 | -6.80 | | | * 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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