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Individual Calculations September 2019 |
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| Tarbuck, Laurence Jm Total change: 63.20 | |   |
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| 106th British Championships Under 1900 | Torquay | ENG | 2019-07-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1860 | 1650 | 2.00 | 4 | 1.07 | 40 | 42.80 | |
|  May, Paul | | | 1832 | ENG | 1.00 | 1 | 0.74 | 40 | 29.60 | | | Brooks, Paul | | | 1818 | ENG | 0.50 | 1 | 0.22 | 40 | 8.80 | |  Patrick, David A | | | 1897 | ENG | 0.00 | 1 | -0.19 | 40 | -7.60 | | | Miller, George I | | | 1891 | ENG | 0.50 | 1 | 0.30 | 40 | 12.00 | |
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) | | | | Northumbria Major | Newcastle | ENG | 2019-08-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1578 | 1650 | 3.50 | 5 | 0.51 | 40 | 20.40 | |
| | Richardson, David | | | 1509 | ENG | 0.50 | 1 | -0.19 | 40 | -7.60 | | | Walters, Philip | | | 1571 | ENG | 0.50 | 1 | -0.11 | 40 | -4.40 | | | Webster, Vivien | | | 1628 | ENG | 1.00 | 1 | 0.47 | 40 | 18.80 | | | Pelling, Kyle | | | 1536 | ENG | 0.50 | 1 | -0.16 | 40 | -6.40 | | | Shore, James R | | | 1648 | ENG | 1.00 | 1 | 0.50 | 40 | 20.00 | |
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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