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Individual Calculations August 2023 |
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| Collins, Luca Total change: -20.80 | |   |
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| Coulsdon Chess Summer Cup 2023 - U2000 Round 2 - July | Coulsdon | ENG | 2023-07-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1507 | 1367 | 0.00 | 1 | -0.31 | 40 | -12.40 | |
|  Kumar, Arnav | | | 1507 | ENG | 0.00 | 1 | -0.31 | 40 | -12.40 | |
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) | | | | Coulsdon Chess Summer Cup 2023 - U1750 Round 2 - July | Coulsdon | ENG | 2023-07-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1475 | 1367 | 0.50 | 2 | -0.21 | 40 | -8.40 | |
|  Engelbrecht, Herman | | | 1526 | MEX | 0.00 | 1 | -0.29 | 40 | -11.60 | | | Pratley, Ian | | | 1423 | ENG | 0.50 | 1 | 0.08 | 40 | 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) | | |
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