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Individual Calculations May 2023 |
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| Ward-Riggs, Samuel Total change: -13.00 | |   |
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| London Chess League Weekend Congress (31 March) - U1800 | London W6 | ENG | 2023-03-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1414 | 1516 | 1.00 | 3 | -0.79 | 20 | -15.80 | |
|  Ibanez, Bittor | | | 1116 * | ENG | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Prince, Alan R | | | 1635 | ENG | 0.00 | 1 | -0.34 | 20 | -6.80 | | | Slonczuk, Pawel | | | 1491 | ENG | 0.00 | 1 | -0.53 | 20 | -10.60 | | | * 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) | | | | Central London Chess Congress April 2023 - Major Under 2000 | London | ENG | 2023-04-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1678 | 1516 | 1.00 | 3 | 0.14 | 20 | 2.80 | |
| | Lake, Chris | | | 1704 | SRB | 0.00 | 1 | -0.26 | 20 | -5.20 | | | Sturt, Charles A | | | 1625 | ENG | 0.00 | 1 | -0.35 | 20 | -7.00 | | | Baroukh, Leon | | | 1706 | ENG | 1.00 | 1 | 0.75 | 20 | 15.00 | |
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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