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Rapid:
Individual Calculations May 2023 |
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| Boztas, Lana Total change: -8.60 | |   |
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| Coulsdon Chess Rapidplay - Easter (Rated Sections) | Coulsdon | ENG | 2023-04-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1173 | 1365 | 2.50 | 4 | -0.43 | 20 | -8.60 | |
|  Selvarattinam, Genga | | | 1190 | ENG | 0.50 | 1 | -0.23 | 20 | -4.60 | | | Kasprowicz, Peter | | | 1111 | ENG | 0.00 | 1 | -0.81 | 20 | -16.20 | |  West, James | | | 1351 | ENG | 1.00 | 1 | 0.48 | 20 | 9.60 | | | Braithwaite, Paul | | | 1039 | 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) | | |
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