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Individual Calculations February 2019 |
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| Boer, Jan Total change: -5.40 | |   |
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| Chess Festival Groningen 2018 - Compact B | Groningen | NED | 2018-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1682 | 1685 | 2.00 | 4 | -0.01 | 20 | -0.20 | |
|  Verhoef, Harry | | | 1781 | NED | 0.00 | 1 | -0.37 | 20 | -7.40 | |  Hoogeveen, Luuk | | | 1662 | NED | 1.00 | 1 | 0.47 | 20 | 9.40 | | | Van Vliet, Lodewijk | | | 1610 | NED | 0.00 | 1 | -0.60 | 20 | -12.00 | | | Schut, Jan | | | 1676 | NED | 1.00 | 1 | 0.49 | 20 | 9.80 | |
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) | | | | Tata Steel Chess Tournament 2018 - Weekendvierkampen | Wijk aan Zee | NED | 2019-01-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1747 | 1685 | 1.00 | 3 | -0.26 | 20 | -5.20 | |
| | Furstenberg, Tom | | | 1776 | BEL | 0.00 | 1 | -0.38 | 20 | -7.60 | | | Kortenoeven, Gerard | | | 1791 | NED | 1.00 | 1 | 0.64 | 20 | 12.80 | | | Slagboom, Leandro | | | 1674 | NED | 0.00 | 1 | -0.52 | 20 | -10.40 | |
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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