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Individual Calculations February 2018 |
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| Dekker, Derk Total change: 19.60 | |   |
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| Chess Festival Groningen 2017 - Compact B | Groningen | NED | 2017-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1928 | 1835 | 0.50 | 1 | 0.13 | 40 | 5.20 | |
|  Grashuis, Aldert-Jan | | | 1928 | NED | 0.50 | 1 | 0.13 | 40 | 5.20 | |
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) | | | | Tata Steel Weekendvierkampen 2018 | Wijk aan Zee | NED | 2018-01-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1784 | 1835 | 1.50 | 2 | 0.36 | 40 | 14.40 | |
|  Goorden, Johan | | | 1832 | NED | 0.50 | 1 | 0.00 | 40 | 0.00 | | | Boghossian, Wahe | | | 1735 | NED | 1.00 | 1 | 0.36 | 40 | 14.40 | |
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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