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Individual Calculations September 2017 |
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| Ackley, Peter Je Total change: 8.80 | |   |
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| 2017 Midland Championship Open | West Bromwich | ENG | 2017-08-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2152 | 1984 | 1.00 | 2 | 0.44 | 20 | 8.80 | |
|  Harborne, Matthew J | | | 2121 | ENG | 0.50 | 1 | 0.18 | 20 | 3.60 | |  Nelson, Jonathan P | | | 2182 | ENG | 0.50 | 1 | 0.26 | 20 | 5.20 | |
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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