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Individual Calculations August 2017 |
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| Duckworth, William M Total change: -20.40 | |   |
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| 22nd Annual Pacific Coast Open | Ontario, California | USA | 2017-07-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1996 | 2199 | 2.00 | 4 | -1.02 | 20 | -20.40 | |
|  Zhang, Brendan | | | 1919 | USA | 1.00 | 1 | 0.16 | 20 | 3.20 | |  Costello, Alexander John | | | 1942 | USA | 0.50 | 1 | -0.32 | 20 | -6.40 | | | Tsogtsaikhan, Saikhanchimeg | | | 1970 | MGL | 0.50 | 1 | -0.29 | 20 | -5.80 | | | Korba, Nicky | | | 2152 | USA | 0.00 | 1 | -0.57 | 20 | -11.40 | |
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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