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Individual Calculations September 2022 |
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| Matthew, Ian G Total change: -71.20 | |   |
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| Chessable British Chess Championships 2022: Over 65 | Torquay | ENG | 2022-08-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1894 | 1816 | 1.50 | 6 | -0.87 | 20 | -17.40 | |
|  Bonafont, Philip R | | | 2001 | ENG | 0.00 | 1 | -0.26 | 20 | -5.20 | |  Smith, Graham | | | 1985 | ENG | 1.00 | 1 | 0.72 | 20 | 14.40 | | | De Coverly, Roger D | | | 1918 | ENG | 0.00 | 1 | -0.36 | 20 | -7.20 | | | Girdlestone, Paul C | | | 2023 | ENG | 0.00 | 1 | -0.23 | 20 | -4.60 | | | Jackson, Paul G | | | 1578 | ENG | 0.00 | 1 | -0.80 | 20 | -16.00 | | | Gamble, Raymond J | | | 1859 | ENG | 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) | | | | Chessable British Chess Championships 2022: Weekend Open (Atkins) | Torquay | ENG | 2022-08-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1515 | 1816 | 1.00 | 2 | -0.71 | 20 | -14.20 | |
| | Banerjee, Supratit | | | 1533 | SCO | 0.00 | 1 | -0.84 | 20 | -16.80 | | | Han, Qixuan | | | 1496 | ENG | 1.00 | 1 | 0.13 | 20 | 2.60 | |
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) | | | | Chessable British Chess Championships 2022: Week 2 AM U1900 | Torquay | ENG | 2022-08-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1564 | 1816 | 2.00 | 5 | -1.98 | 20 | -39.60 | |
| | Chapman, Philip M | | | 1701 | ENG | 1.00 | 1 | 0.34 | 20 | 6.80 | | | Adams, Henry | | | 1469 | ENG | 0.00 | 1 | -0.89 | 20 | -17.80 | | | Kothari, Jai | | | 1454 | ENG | 0.00 | 1 | -0.90 | 20 | -18.00 | | | Fernando, Manel | | | 1497 | ENG | 0.50 | 1 | -0.37 | 20 | -7.40 | | | Farrar, Gordon | | | 1699 | ENG | 0.50 | 1 | -0.16 | 20 | -3.20 | |
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) | | |
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