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Individual Calculations September 2015 |
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| Wells, Jonathan C Total change: -7.60 | |   |
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| 102nd British Chess Championships Weekend Open | Coventry | ENG | 2015-07-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1704 | 1994 | 3.00 | 4 | -0.35 | 20 | -7.00 | |
|  Deswarte, Ian | | | 1793 | ENG | 0.00 | 1 | -0.76 | 20 | -15.20 | |  Mao, Ximan | | | 1763 | ENG | 1.00 | 1 | 0.21 | 20 | 4.20 | | | Saravanan, Karthik | | | 1594 * | ENG | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Snook-Lumb, Chris | | | 1664 | ENG | 1.00 | 1 | 0.12 | 20 | 2.40 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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) | | | | 102nd British Chess Championships Week 2 AM Open | Coventry | ENG | 2015-08-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1935 | 1994 | 3.50 | 5 | 0.64 | 20 | 12.80 | |
| | Blake, J Morgan | | | 1712 | ENG | 1.00 | 1 | 0.16 | 20 | 3.20 | | | Jaunooby, Ali R | | | 2143 | ENG | 0.00 | 1 | -0.30 | 20 | -6.00 | | | Ramage, Colin R | | | 1908 | ENG | 1.00 | 1 | 0.38 | 20 | 7.60 | | | Patrick, David A | | | 1861 | ENG | 0.50 | 1 | -0.18 | 20 | -3.60 | | | Iyengar, Ilya | | | 2049 | ENG | 1.00 | 1 | 0.58 | 20 | 11.60 | |
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) | | | | 102nd British Chess Championships Week 2 PM Open | Coventry | ENG | 2015-08-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1833 | 1994 | 2.50 | 3 | 0.36 | 20 | 7.20 | |
| | French, Max | | | 1816 | ENG | 1.00 | 1 | 0.27 | 20 | 5.40 | | | Golding, James | | | 1814 | ENG | 0.50 | 1 | -0.24 | 20 | -4.80 | | | Davison, Chris | | | 1870 | ENG | 1.00 | 1 | 0.33 | 20 | 6.60 | |
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) | | | | Steve Boniface Memorial Congress 2015 | Bristol | ENG | 2015-08-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1889 | 1994 | 1.50 | 4 | -1.03 | 20 | -20.60 | |
| | French, Max | | | 1816 | ENG | 0.50 | 1 | -0.23 | 20 | -4.60 | | | Price, Andrew | | | 1815 | ENG | 1.00 | 1 | 0.27 | 20 | 5.40 | | | Benson, Sean T | | | 1745 | ENG | 0.00 | 1 | -0.81 | 20 | -16.20 | | | Claridge-Hansen, William | | | 2179 | ENG | 0.00 | 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) | | |
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