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Individual Calculations October 2017 |
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| Davis, Lee Total change: 30.80 | |   |
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| 3rd Welsh Seniors Championship | Penarth | WLS | 2017-09-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1903 | 1906 | 4.00 | 5 | 1.54 | 20 | 30.80 | |
|  Parsons, David Ivor | | | 1589 | WLS | 1.00 | 1 | 0.13 | 20 | 2.60 | |  Van Kemenade, Rudy | | | 1998 | WLS | 1.00 | 1 | 0.63 | 20 | 12.60 | | | Waterfield, John W | | | 1958 | WLS | 0.50 | 1 | 0.07 | 20 | 1.40 | | | Reynolds, D Ian W | | | 2034 | ENG | 1.00 | 1 | 0.67 | 20 | 13.40 | | | Bevan, Peter M | | | 1937 | WLS | 0.50 | 1 | 0.04 | 20 | 0.80 | |
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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