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Individual Calculations February 2023 |
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| Barbier, Astrid Total change: -5.40 | |   |
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| 19e Bois-Colombes Chess Master - Open A | BOIS COLOMBES | FRA | 2022-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2081 | 1947 | 2.50 | 7 | 0.24 | 20 | 4.80 | |
|  Houhou, Alexandre | | | 2177 | FRA | 0.00 | 1 | -0.21 | 20 | -4.20 | | | Vinodhkumar, Balaguru | | | 2088 | IND | 0.00 | 1 | -0.31 | 20 | -6.20 | |  Karas, Eugenia | | | 2004 | ENG | 0.50 | 1 | 0.08 | 20 | 1.60 | | | Rousselet, Christophe | | | 2018 | FRA | 0.50 | 1 | 0.10 | 20 | 2.00 | | | Arquie, Alexis | | | 2044 | FRA | 1.00 | 1 | 0.63 | 20 | 12.60 | | | Boumrar, Ayrad | | | 2143 | FRA | 0.50 | 1 | 0.25 | 20 | 5.00 | | | David, Bogdan-Emanuel | c | | 2096 | ROU | 0.00 | 1 | -0.30 | 20 | -6.00 | |
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) | | | | Tata Steel weekendvierkampen 2023 | Wijk aan Zee | NED | 2023-01-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1948 | 1950 | 0.50 | 2 | -0.51 | 20 | -10.20 | |
| | Verheul, Job | | | 1909 | NED | 0.00 | 1 | -0.56 | 20 | -11.20 | | | Van Zutphen, Frank | | | 1986 | NED | 0.50 | 1 | 0.05 | 20 | 1.00 | |
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) | | |
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