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Individual Calculations May 2023 |
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| Lake, Chris Total change: -9.80 | |   |
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| Central London Chess Congress April 2023 - Major Under 2000 | London | ENG | 2023-04-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1608 | 1704 | 2.00 | 4 | -0.49 | 20 | -9.80 | |
|  Ward-Riggs, Samuel | | | 1516 | ENG | 1.00 | 1 | 0.26 | 20 | 5.20 | |  Hall, Antony C | | | 1817 | ENG | 0.50 | 1 | 0.15 | 20 | 3.00 | | | Llewellyn, Julian D | | | 1598 | ENG | 0.50 | 1 | -0.14 | 20 | -2.80 | | | Pristin, Michael | | | 1499 | USA | 0.00 | 1 | -0.76 | 20 | -15.20 | |
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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