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Individual Calculations February 2018 |
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| Van Roon, Sjoerd Total change: 113.60 | |   |
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| Chess Festival Groningen 2017 - Compact A | Groningen | NED | 2017-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2167 | 2024 | 3.00 | 5 | 1.46 | 40 | 58.40 | |
|  Tang, Charlie | | | 2166 | NED | 1.00 | 1 | 0.69 | 40 | 27.60 | |  Vos, Tjark | | | 2210 | AHO | 0.50 | 1 | 0.24 | 40 | 9.60 | | | Bakker, Guido | | | 2172 | NED | 0.50 | 1 | 0.20 | 40 | 8.00 | | | Averbukh, Alex | c | | 2108 | JPN | 1.00 | 1 | 0.62 | 40 | 24.80 | | | Hovenga, Alje | | | 2179 | NED | 0.00 | 1 | -0.29 | 40 | -11.60 | |
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) | | | | Tata Steel Weekendvierkampen 2018 | Wijk aan Zee | NED | 2018-01-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1985 | 2013 | 3.00 | 3 | 1.38 | 40 | 55.20 | |
| | Van Ael, Bert | | | 1954 | BEL | 1.00 | 1 | 0.42 | 40 | 16.80 | | | Bachaus, Sander | | | 2051 | NED | 1.00 | 1 | 0.55 | 40 | 22.00 | | | Broszeit, Peter | | | 1950 | GER | 1.00 | 1 | 0.41 | 40 | 16.40 | |
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) | | |
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