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Rapid:
Individual Calculations January 2023 |
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| Helsby, David C Total change: 25.00 | |   |
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| Kensington FIDE Rapid Chess 4 December - Major U1700 | London | ENG | 2022-12-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1500 | 1296 | 2.50 | 5 | 1.25 | 20 | 25.00 | |
|  Isaacs, Ruairi | | | 1410 | ENG | 0.50 | 1 | 0.16 | 20 | 3.20 | |  Zhang, Junyi | | | 1369 | ENG | 0.00 | 1 | -0.40 | 20 | -8.00 | | | Bovtramovics, Vladimirs | | | 1658 | LAT | 1.00 | 1 | 0.90 | 20 | 18.00 | | | Garau, Tomas | | | 1552 | ENG | 1.00 | 1 | 0.81 | 20 | 16.20 | | | Valentine, Tim | | | 1513 | ENG | 0.00 | 1 | -0.22 | 20 | -4.40 | |
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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