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Individual Calculations May 2011 |
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| Sands, David A Total change: 5.25 | |   |
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| The 57th Welsh Chess Championships | Cardiff | WLS | 2011-04-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2101 | 2238 | 5.00 | 7 | 0.35 | 15 | 5.25 | |
|  Van Kemenade, Rudy | | | 1951 | WLS | 0.50 | 1 | -0.34 | 15 | -5.10 | |  White, Ernest M | | | 1952 | ENG | 1.00 | 1 | 0.16 | 15 | 2.40 | | | Heap, Gerry | | | 1954 | WLS | 1.00 | 1 | 0.16 | 15 | 2.40 | | | Williams, A. Howard | f | | 2347 | WLS | 0.50 | 1 | 0.15 | 15 | 2.25 | | | Zeidler, Sven P. | f | | 2247 | WLS | 0.00 | 1 | -0.49 | 15 | -7.35 | | | Lexton, Michael J | | | 2052 | WLS | 1.00 | 1 | 0.26 | 15 | 3.90 | | | Kett, Tim | | | 2202 | WLS | 1.00 | 1 | 0.45 | 15 | 6.75 | |
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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