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Individual Calculations May 2015 |
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| Sands, David A Total change: -39.40 | |   |
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| 4NCL 2014-15 Rounds 7-8 (Div 1 & 2) | Birmingham | ENG | 2015-03-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2038 | 2185 | 1.00 | 2 | -0.40 | 20 | -8.00 | |
|  Lewyk, Ihor | | | 2054 | ENG | 0.50 | 1 | -0.18 | 20 | -3.60 | |  Kalaiyalahan, Akshaya | | | 2021 | ENG | 0.50 | 1 | -0.22 | 20 | -4.40 | |
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) | | | | 2015 Welsh Chess Championships | Cardiff | WLS | 2015-04-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1940 | 2185 | 4.00 | 7 | -1.57 | 20 | -31.40 | |
| | Stuart, Neil | | | 1940 | WLS | 0.50 | 1 | -0.30 | 20 | -6.00 | | | Guy, David | | | 1905 | WLS | 1.00 | 1 | 0.16 | 20 | 3.20 | | | Jameson, David | | | 2048 | WLS | 0.50 | 1 | -0.18 | 20 | -3.60 | | | Thomas, Ben | | | 1796 | WLS | 0.00 | 1 | -0.91 | 20 | -18.20 | | | Shakespeare, John | | | 1934 | WLS | 1.00 | 1 | 0.19 | 20 | 3.80 | | | Bevan, Peter M | | | 1984 | WLS | 0.50 | 1 | -0.26 | 20 | -5.20 | | | Fathallah, Joe | | | 1973 | WLS | 0.50 | 1 | -0.27 | 20 | -5.40 | |
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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