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Individual Calculations May 2022 |
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| Pratley, Ian Total change: -51.60 | |   |
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| Coulsdon Chess Daytime Chess - Spring 2022 S4 Apr 2022 | London | ENG | 2022-03-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1137 | 1537 | 0.00 | 1 | -0.92 | 20 | -18.40 | |
|  Gray, David | | | 1137 * | ENG | 0.00 | 1 | -0.92 | 20 | -18.40 | | | * 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) | | | | Coulsdon Chess Dicky White S8 APR 2022 | London | ENG | 2022-04-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1451 | 1509 | 0.50 | 2 | -0.66 | 20 | -13.20 | |
|  Levey, Steve | | | 1431 | ENG | 0.50 | 1 | -0.11 | 20 | -2.20 | | | Chaban, Roxolana | | | 1470 | ENG | 0.00 | 1 | -0.55 | 20 | -11.00 | |
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) | | | | Coulsdon Chess Standardplay Congress Easter 2022 - Open | London | ENG | 2022-04-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1814 | 1509 | 0.00 | 1 | -0.14 | 20 | -2.80 | |
| | Smith, Mark | | | 1814 | ENG | 0.00 | 1 | -0.14 | 20 | -2.80 | |
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) | | | | Coulsdon Chess Standardplay Congress Easter 2022 - Major (U1750) | London | ENG | 2022-04-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1419 | 1509 | 1.00 | 3 | -0.86 | 20 | -17.20 | |
| | Veselow, Zoe | | | 1355 | ENG | 0.00 | 1 | -0.71 | 20 | -14.20 | | | Smith, Henry | | | 1350 | ENG | 0.50 | 1 | -0.21 | 20 | -4.20 | | | Woolacott, Rob | | | 1553 | ENG | 0.50 | 1 | 0.06 | 20 | 1.20 | |
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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