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Individual Calculations June 2023 |
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| May, Adam John Total change: -6.80 | |   |
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| Welsh Chess Premier League Open 2023 Round 4 | Bridgend | WLS | 2023-05-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1845 | 1888 | 0.50 | 1 | -0.06 | 20 | -1.20 | |
|  James, Dai | | | 1845 | WLS | 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) | | | | 32nd Frome Chess Congress | Frome | ENG | 2023-05-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1930 | 1888 | 2.00 | 5 | -0.20 | 20 | -4.00 | |
| | Chan, Sheng Liang Bernard | | | 2041 | MAS | 0.00 | 1 | -0.30 | 20 | -6.00 | |  Moyse, Nigel J | | | 1945 | WLS | 0.50 | 1 | 0.08 | 20 | 1.60 | | | Hobson, Kenneth | | | 2104 | ENG | 0.00 | 1 | -0.22 | 20 | -4.40 | | | Hertog, Alexander | | | 1643 | ENG | 1.00 | 1 | 0.20 | 20 | 4.00 | | | Waterfield, John W | | | 1915 | WLS | 0.50 | 1 | 0.04 | 20 | 0.80 | |
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) | | | | Welsh Chess Premier League Open 2023 Round 5 | Bridgend | WLS | 2023-05-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1828 | 1888 | 0.50 | 1 | -0.08 | 20 | -1.60 | |
| | Llewellyn, David | | | 1828 | WLS | 0.50 | 1 | -0.08 | 20 | -1.60 | |
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) | | |
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