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Individual Calculations September 2017 |
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| Chen, Alex Total change: 30.00 | |   |
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| 2017 Barber Tournament of K-8 Champions | Norfolk, Virginia | USA | 2017-07-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2092 | 1745 | 1.00 | 4 | 0.54 | 40 | 21.60 | |
|  Yang, Kevin S | | | 2086 | USA | 0.50 | 1 | 0.38 | 40 | 15.20 | | | Mathur, Rithwik | | | 2093 | USA | 0.00 | 1 | -0.11 | 40 | -4.40 | | | Poliannikov, Danila | | | 2044 | USA | 0.50 | 1 | 0.35 | 40 | 14.00 | |  Ke, Ivan | | | 2145 * | USA | 0.00 | 1 | -0.08 | 40 | -3.20 | | | * 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) | | | | 2017 North Carolina Open | Greensboro, North Carolina | USA | 2017-08-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1822 | 1745 | 1.00 | 2 | 0.21 | 40 | 8.40 | |
| | Smith, Richard D | | | 1810 | USA | 1.00 | 1 | 0.59 | 40 | 23.60 | | | Zhu, Neo | | | 1834 | USA | 0.00 | 1 | -0.38 | 40 | -15.20 | |
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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