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Individual Calculations May 2023 |
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| Belcher, Zachary Total change: -6.00 | |   |
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| Coulsdon Chess Standardplay Congress Easter 2023 - Premier (U2000) | Coulsdon | ENG | 2023-04-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1635 | 1355 | 0.00 | 1 | -0.16 | 20 | -3.20 | |
|  Airlie, Arran | | | 1635 | ENG | 0.00 | 1 | -0.16 | 20 | -3.20 | |
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) | | | | Coulsdon Chess Standardplay Congress Easter 2023 - Minor (U1500) | Coulsdon | ENG | 2023-04-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1097 | 1355 | 1.50 | 2 | -0.14 | 20 | -2.80 | |
| | Aiyyapan, Sudersen | | | 1087 | ENG | 0.50 | 1 | -0.33 | 20 | -6.60 | |  Denford, Les | | | 1107 | ENG | 1.00 | 1 | 0.19 | 20 | 3.80 | |
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) | | |
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