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Individual Calculations August 2023 |
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| Zigmond, Andrew Total change: -31.80 | |   |
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| 2023 British Championship: AM Under 1900 | Leicester | ENG | 2023-07-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1603 | 1554 | 1.00 | 4 | -0.74 | 20 | -14.80 | |
|  Coward, Neil | | | 1688 | ENG | 0.50 | 1 | 0.18 | 20 | 3.60 | |  Tomy, Jeff | | | 1554 | ENG | 0.00 | 1 | -0.50 | 20 | -10.00 | | | Coleman, Frederick | | | 1562 | ENG | 0.00 | 1 | -0.49 | 20 | -9.80 | | | Ogorman, Brendan | | | 1606 | ENG | 0.50 | 1 | 0.07 | 20 | 1.40 | |
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) | | | | 2023 British Championship: PM Under 1750 | Leicester | ENG | 2023-07-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1393 | 1554 | 2.00 | 4 | -0.85 | 20 | -17.00 | |
| | Weersing, Nathan | | | 1427 | ENG | 0.00 | 1 | -0.67 | 20 | -13.40 | | | Fraser, Chris | | | 1373 | ENG | 0.50 | 1 | -0.24 | 20 | -4.80 | | | Jestico, John V | | | 1327 | ENG | 1.00 | 1 | 0.21 | 20 | 4.20 | | | Daly, Grant | | | 1443 | ENG | 0.50 | 1 | -0.15 | 20 | -3.00 | |
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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