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Individual Calculations August 2023 |
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| Jukes, Sam Total change: -8.40 | |   |
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| 18th South Wales International Open | Bridgend | WLS | 2023-07-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1963 | 1911 | 4.00 | 8 | 0.63 | 20 | 12.60 | |
|  Pollack, Oscar | | | 2096 | ENG | 0.00 | 1 | -0.26 | 20 | -5.20 | |  Emblem, Mark | | | 1511 * | WLS | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Marusenko, Petr | m | | 2043 | UKR | 1.00 | 1 | 0.68 | 20 | 13.60 | | | Boswell, Jacob Connor | | | 2163 | ENG | 0.00 | 1 | -0.19 | 20 | -3.80 | | | Roberts, David L | | | 1995 | ENG | 1.00 | 1 | 0.62 | 20 | 12.40 | | | Byron, Alan M | | | 2132 | ENG | 0.00 | 1 | -0.22 | 20 | -4.40 | | | Foster, James C | | | 1955 | ENG | 0.00 | 1 | -0.44 | 20 | -8.80 | | | Harris, Calum | | | 1805 | WLS | 1.00 | 1 | 0.36 | 20 | 7.20 | | | * 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) | | | | 2023 British Championship: AM Open | Leicester | ENG | 2023-07-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1924 | 1911 | 0.50 | 4 | -1.43 | 20 | -28.60 | |
| | Surtees, Mike J | | | 2059 | ENG | 0.00 | 1 | -0.30 | 20 | -6.00 | | | Kirupakaran, Vishnu | | | 1797 | ENG | 0.00 | 1 | -0.66 | 20 | -13.20 | | | Staniland, Philip | | | 1782 | ENG | 0.50 | 1 | -0.17 | 20 | -3.40 | | | Orgler, Philipp | | | 2057 | AUT | 0.00 | 1 | -0.30 | 20 | -6.00 | |
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) | | | | 2023 British Championship: PM Under 2050 | Leicester | ENG | 2023-07-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1779 | 1911 | 3.00 | 4 | 0.38 | 20 | 7.60 | |
| | Tomy, Jeff | | | 1554 | ENG | 1.00 | 1 | 0.11 | 20 | 2.20 | | | Hodge, Steve R | | | 1967 | ENG | 1.00 | 1 | 0.58 | 20 | 11.60 | | | Clarke, Ian J | | | 1786 | ENG | 1.00 | 1 | 0.33 | 20 | 6.60 | | | Gordon, Sean | | | 1808 | ENG | 0.00 | 1 | -0.64 | 20 | -12.80 | |
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) | | |
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