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Individual Calculations September 2017 |
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| O`gorman, Brendan Total change: 18.40 | |   |
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| 104th British Championships Weekend Under 1825 | Llandudno | ENG | 2017-07-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1617 | 1702 | 3.50 | 5 | 0.49 | 20 | 9.80 | |
|  Di-Vetta, Andrew | | | 1605 | WLS | 1.00 | 1 | 0.37 | 20 | 7.40 | |  Jaufarally, Nadia | | | 1657 | ENG | 0.50 | 1 | -0.06 | 20 | -1.20 | | | Kesterson, Kennan | | | 1392 | ENG | 1.00 | 1 | 0.14 | 20 | 2.80 | | | Finn, Thomas | | | 1751 | ENG | 0.50 | 1 | 0.07 | 20 | 1.40 | | | London, Nick J | | | 1682 | ENG | 0.50 | 1 | -0.03 | 20 | -0.60 | |
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) | | | | 104th British Championships Under 1900 | Llandudno | ENG | 2017-07-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1659 | 1702 | 0.50 | 1 | -0.06 | 20 | -1.20 | |
| | Fowler, David J | | | 1659 | ENG | 0.50 | 1 | -0.06 | 20 | -1.20 | |
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) | | | | 104th British Championships Under 1750 | Llandudno | ENG | 2017-07-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1542 | 1702 | 3.50 | 5 | -0.05 | 20 | -1.00 | |
| | Verma, Shlok | | | 1553 | ENG | 0.50 | 1 | -0.20 | 20 | -4.00 | | | Livermore, Richard Ea | | | 1565 | WLS | 0.50 | 1 | -0.18 | 20 | -3.60 | | | Khoo-Thwe, Louis | | | 1506 | NOR | 1.00 | 1 | 0.25 | 20 | 5.00 | | | Petkov, Petko | | | 1569 | WLS | 0.50 | 1 | -0.18 | 20 | -3.60 | | | Coleman, Frederick | | | 1516 | ENG | 1.00 | 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) | | | | 2017 Midland Championship Major | West Bromwich | ENG | 2017-08-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1799 | 1661 | 1.50 | 3 | 0.54 | 20 | 10.80 | |
| | James, Dai | | | 1861 | WLS | 0.50 | 1 | 0.26 | 20 | 5.20 | | | Paul, Nathanael | | | 1871 | ENG | 0.00 | 1 | -0.23 | 20 | -4.60 | | | Szwajkun, Richard | | | 1666 | ENG | 1.00 | 1 | 0.51 | 20 | 10.20 | |
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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