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Individual Calculations May 2023 |
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| Chiang, Richard Total change: -24.80 | |   |
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| London Chess League Weekend Congress (31 March) - Open | London W6 | ENG | 2023-03-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1329 | 1624 | 0.50 | 2 | -1.17 | 20 | -23.40 | |
|  Veeturi, Yashvardhan | | | 1224 * | ENG | 0.00 | 1 | -0.92 | 20 | -18.40 | |  Banerji, Kumar | | | 1434 | ENG | 0.50 | 1 | -0.25 | 20 | -5.00 | | | * 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) | | | | 65th Southend Easter Congress - U1900 | Southend-on-Sea | ENG | 2023-04-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1770 | 1624 | 1.50 | 4 | 0.27 | 20 | 5.40 | |
| | Turicar, Goran | | | 1793 | CRO | 0.50 | 1 | 0.22 | 20 | 4.40 | | | Clegg, Robert | | | 1680 | ENG | 0.50 | 1 | 0.08 | 20 | 1.60 | | | Jacob, Sydney J | | | 1781 | ENG | 0.00 | 1 | -0.29 | 20 | -5.80 | | | Staniland, Philip | | | 1824 | ENG | 0.50 | 1 | 0.26 | 20 | 5.20 | |
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) | | | | Central London Chess Congress April 2023 - Major Under 2000 | London | ENG | 2023-04-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1535 | 1624 | 1.50 | 3 | -0.34 | 20 | -6.80 | |
| | Singha, Swati | | | 1499 | IND | 0.00 | 1 | -0.67 | 20 | -13.40 | | | Haddock, Paul | | | 1400 | ENG | 0.50 | 1 | -0.28 | 20 | -5.60 | | | Baroukh, Leon | | | 1706 | ENG | 1.00 | 1 | 0.61 | 20 | 12.20 | |
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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